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VDI Wissensforum GmbH - Drivetrain for Vehicles 2016

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VDI Wissensforum GmbH (Hrsg.)

Drivetrain for Vehicles 2016

Reihe: VDI-Berichte

Band 2276 2016

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D. Kupka, P. Tenberge Automated concept design for the evaluation of favourable AT structures S. 193-206

„… Automated concept design for the evaluation of favourable AT structures Daniel Kupka M.Sc, Prof …” „… . Abstract Transmission manufacturers are permanently searching for favourable AT structures due to …” „… . Advanced AT structures on the other hand are complex to design, since the exact power flows in the …”

A. Lampe, U. Mettin, R. Serway Clutch control of stepped automatic transmissions by using a virtual DCT-structure – Power shifts made easy with generic control software S. 405-420

„… transmission (AT) structure by using a power shift control scheme of a dual clutch transmission (DCT). The …” „… manipulated variables. 2 Transmission properties of DCT and AT structures A basic understanding of the …” „… representative structures for a dual clutch transmission (DCT) and a stepped automatic transmission (AT) reveals …”

R. Moehlmann Modular design for driveline mechatronic systems – Global development strategy driven by automotive market demands in the context of global competition S. 309-320

„… rapidly rising numbers of product variants. At the same time development cycles are getting shorter under …” „… . The global development structure will give an insight into the new hierarchy of the product levels …” „… product complexity and rapidly rising numbers of product variants. At the same time development cycles …”

M. Funk, G. Bofinger, J. Patzer, D. O. Lautenschlager, E. Granderath The New Porsche Dual Clutch Gearbox (PDK) – an Important Component of the Powertrain of the Future S. 69-84

„… dual clutch gearbox has a long tradition at Porsche. It was a little over 30 years ago when the dual …” „… first place finish at the Nürburgring – the first PDK victory in the Supercup. The greatest racing …” „… success of the PDK of that time was a victory at the World Championship race in Monza in 1986, also in a …”

Y. Takeda, M. Kawaminami, M. Tsuchida, H. Takekawa Gear Whine Noise Reduction Technology of New Model Transmission for FF-Hybrid Vehicle S. 435-450

„… structure. We aimed at simplification and downsizing of the parts compared with the previous structure. In …” „… the case, and suggested the new gear support structure to reduce exciting force to the case. (3 …” „… 610. Figure 2 shows the schematic diagram of P610. In P610, we adopted a new structure. The …”

J.-N. Mach, G. Poll Influence of surface structures on the operational behavior of continuously variable transmissions S. 919-920

„… Influence of surface structures on the operational behavior of continuously variable transmissions …” „… traction motors in vehicles always at the optimum point of operation without interruption of the power flow …” „… . The approach was both empirical and theoretical. At first, three different methods of intentional …”

G. Jacobs, F. Straßburger, C. Pelger Power split driveswith mechanical variators for small mobile machines S. 605-614

„… structures it is 90 kW. A co st anal ysis sh ow s th at pow erspl it drives w ith m ech anica l C V Ts ca …” „… ech anica l C V Ts. Th is presentation w il l sh ow , th at m ech anica l C V Ts in input co upl ed …” „… powersplit structures with one driving mode, the application power limit is 30 kW, while for 2-mode …”

K. Fronius, A. Harsch, P. Neuwirth, J. Gindele The AMG SPEEDSHIFT DCT from the Mercedes-Benz 7G-DCT Family – Performance for the Road and Race Track in the Compact Segment S. 53-68

„… programs at his/her disposal via the dynamic select rotary switch so that he is optimally set up for any …” „… , 201654 Introduction The 7-speed dual clutch transmission 7G-DCT has now been in existence at Daimler AG …” „… facelift, customers have five drive programs at their disposal. So they can define use on the road or the …”

V. Warth, B. Reick, B. Bertsche, M. Geimer Efficient analysis of complex continuously variable power split transmissions with multiple in- and outputs S. 719-730

„… state-of-the-art a method for efficiently describing and calculating such transmission structures is presented …” „… efficiency of three transmission structures are compared in different levels of detail. The results …” „… gear the torques are calculated by considering the torque equilibrium at the planetary gearset as well …”

M. Maisch, M. Homm, U. Keller The Highly Efficient 9GH-TRONIC Plug-In Hybrid Transmission by Mercedes-Benz S. 339-352

„… architectures have already been developed [1 to 6]. Fig. 1: Development of hybrid transmissions at …” „… motor and torsion vibration damper in a single, highly-compact structure. The interaction of the …” „… in every Mercedes-Benz model series without any changes to the body shell structures …”

R. König, A. Viehmann, S. Rinderknecht Development of the transmission control for a High-Speed Multi-Gear Powertrain Concept for Electric Vehicles S. 543-562

„… allows high maximum velocity and a high starting torque at the same time, thus improving the driving …” „… powertrain control is being described. At first, the control strategy will be explained and afterwards the …” „… high efficiency and a good driving comfort at the same time. When analyzing the shifting processes …”

B. Kluge Systematic approach to generate Multi-Mode-Transmissions – Method to evaluate the potential of Multi-Mode-Transmissions S. 157-166

„… have been prevailing the market. At European manufacturers the parallel hybrid dominates, whereas …” „… mechanical structure became more complex over the time. So called Multi-Mode-Transmissions combine the …” „… structures. For conventional transmissions, it is state of the art to use so called synthesis algorithms …”

S. Fujimoto, N. Shiomura, K. Sato, Y. Kawahara The Trend and Future of Torque Converter for CVT S. 869-878

„… . As a result, structure of TC for AT and CVT have identically characteristics. In this paper, history …” „… typical step automatic transmission (AT) and for typical continuously variable transmission (CVT), we see …” „… of characteristics and trends of TC for AT and CVT will be explained and prediction of the future …”

P. Gwinner, M. Otto, K. Stahl Torque-Vectoring Transmission with Reinforced Plastic Housing for an Electric Subcompact Vehicle – Measures to Integrate a Plastic Housing into an E-Drive Transmission S. 503-514

„… additional small electric torque motor. The vehicle uses a lithium-ion battery to reach a range of at least …” „… / kW 1.5 History of Torque-Vectoring Transmissions at the FZG The first torque-vectoring …” „… torque motor, which is mounted at the housing. In addition, the input speed of the superimposing motor …”

S. Foulard, S. Rinderknecht, R. Fietzek Paradigm Change in Transmission Design by Online Condition Prediction – Cost- Efficient and Resource-Optimized Lightweight Design based on the eLIFE and ecoLIFE3 Concepts S. 515-530

„… developed at the Institute for Mechatronic Systems in Mechanical Engineering (IMS) of the TU Darmstadt …” „… damage levels of transmission components (Fig. 2). Fig. 2: General structure of the lifetime …” „… Revolutions-At-Level counting method and a linear damage accumulation according to Miner- Haibach [4, 5]. The developed …”

A. Albers, S. Ott, N. Bursac, S. Rapp Product Generation Engineering – efficient and effective to innovative drivetrain solutions S. 17-32

„… ], [Deubzer und Lindemann 2009]. Eckert hints at most development projects being enhancements of products …” „… cycles [Wesner 1977] and the technology S curves [BurgeSmani 2004]. Looking at the S curves it becomes …” „… fundamental structure. The newly developed shares of a new product generation should create functions and …”

R. Welter, M. Kneißler, M. Hausner, D. Schulteis The Fascination of Clutch-by-Wire S. 121-136

„… called Clutch-by-Wire (CbW). A new intelligent clutch actuator and a new force emulator at the pedal …” „… enter volume use at wellknown vehicle manufacturers during this decade and the associated intriguing …” „… of development at Schaeffler. 2. History The possibilities for implementation of Clutch-by-Wire …”

O. Back, A. Damm, P. Echtler Clutches with positive fit for Automatic Transmissions S. 221-230

„… future. The percentage of automatic transmissions will grow at the global level, with DCTs and CVTs …” „… gaining market share, while traditional torque-converter transmissions will stay at approximately the same …” „… actuation. The use of shifting elements that, in their elementary structure, are based on synchronizers …”

F. Pflüger Virtual calibration of conventional & hybrid drivetrain strategy – Transfer drive strategy calibration from vehicle in a virtual environment S. 563-576

„… combination of all the ratings in a meaningful way. These ratings at the end are combined to find a global …” „… can be tuned specifically, same as several weighting factors. Step 1: Target Setting At the …” „… strategy perspective the functional framework of the software covers at least 80% of other state of the …”

R. Kronstorfer, F. Kolb, U. Pinschmidt Audi quattro – Four wheel drive becomes more efficient S. 369-382

„… . Abstract The all-wheel drive quattro has a very long and successful history at Audi. With more than seven …” „… , dynamics and safety. At present there is a new generation of all-wheel drives for longitudinally mounted …” „… dynamics will be upheld. At the same time a significant increase in efficiency will be achieved …”

F. Markowsky Efficient Friction – Use of modern tools in friction system development S. 637-644

„… tor ue test rig s structure and mode of action as well as the usage and the result s benefits. This …” „… IIIII IIII dr ag to rq ue [ N m ] di ff er en tia l r ot at in g sp ee d [r pm ] time [s …”

D. Engelmann, W. Müller, M. Geimer Project “Line Traction 3” – Mechanical driveline with activewheel hubs S. 731-742

„… gegeben sind. Abstract The Line Traction 3 Project aims at developing a new powertrain concept. In …” „… aimed at designing a mechanical drivetrain, where all wheels can be controlled actively and separately …” „… differential lock under poor traction conditions, tensions in the transmission shafts or forced slip at the …”

B. Kohn, M. Otto, K. Stahl Noise Reduction Potential of Waveform Flank Modifications – Topological Waveform and Waveform-like Modifications Provide Promising Optimization Perspective S. 451-468

„… test gear bodies, - structure-borne sound at several positions of the gearbox, - angular positions …” „… transmission error of the mesh. Recent investigations at the Gear Research Centre (FZG), funded by FVA/AiF …” „… by Reishauer AG, yield highly favourable excitation levels at the FZG dynamic test rig – while load …”

B. Löffler, J. Patzner, M. Drabek, K. Armbruster Modular 8-Speed Hybrid Dual Clutch Transmission With Integrated All-Wheel Distributor by ZF S. 85-100

„… transmission ratio, the new transmission system is thus as versatile as economic. 1. Introduction At its …” „… torques of up to 1,000 Nm. At its launch, the transmission is available in front-longitudinal …” „… structures used so far for transmissions in frontlongitudinal configuration. An architectural analysis …”

A. Albers, U. Reichert, S. Ott, A. Radimersky Software supported development of a Battery Electric Vehicle powertrain considering the efficiency S. 321-338

„… differential speed at the gearshift. Due to a software-aided, detailed creation of selected gearboxes it is …” „… . The Validation is planned by a gearbox-prototype at a suitable testbench [2]. Aim is to reduce the …” „… speed of about 15000 rpm. By raising the maximum speed at the same maximum power, the space and the …”

doi.org/10.51202/9783181022764

VDI Wissensforum GmbH - Gleit- und Wälzlagerungen 2023

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VDI Wissensforum GmbH (Hrsg.)

Gleit- und Wälzlagerungen 2023

Reihe: VDI-Berichte

Band 2415 2023

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M. Busch Numerical simulation of rotor and gas-film dynamics in Schaeffler’s foil air bearings S. 221-234

„… structure deformation at …” „… ]. • The contacts between the foils and the contacts at the bearing shell consider Coulomb friction according to Ref. [25]. This can affect the damping behavior of the elastic structure …” „… the bearing characteristics. Related with this topic, the bearing preload is of great importance. Due to the internal tension of the foil structure at …”

J. R. Koch Bearing creep in wind turbines S. 133-144

„… flexibility of the structures allows a loss of contact pressure under high loads. 1. Introduction Bearings …” „… roller-induced creep • Creep by runout, also called housing-induced or structure-induced creep VDI-Berichte Nr …” „… : Sketch of travelling-wave type creep (from [2]) Paper [1] describes with more details the phenomenon at …”

A. Rottmann Additive Fertigung von Wälzlagerringen – Additiv gefertigte Wälzlagerringe mit integrierten Kühlkanälen für Luftfahrtanwendungen S. 79-94

„… components are significantly more expensive. Thus, the technology is currently only used for structures which …” „… structures (strength optimized geometry, similar e.g. bone structures). The integration of cooling channels …” „… Testing and Data Analysis. NASA John H. Glenn Research Center at Lewis Field, Cleveland, OH, USA, 2011 [5 …”

J. Dörner, T. Klütsch, Y. Ishibashi, S. Katto Development of Electrical Erosion Resistant Insulation Coating and Overmolding for Bearings in HEV/EV S. 59-78

„… elements and bearing rings. Looking into the e-motors and electric vehicles at all, two technical trends …” „… are visible. At first, 800V architecture starts gaining more market share, expected to be at 50 …” „… solution as hybrid bearings with ceramic balls but at lower costs. The following chapters will introduce …”

L. Maccioni, F. Concli Flows in Oil-Bath Lubricated Tapered Roller Bearings: CFD Simulations Validated via PIV S. 247-266

„… to describe experimental campaigns aimed at measuring load-independent power losses (PLB0), the oil …” „… . By taking two photographs at an established and precise interframe, it is possible, through cross …” „… particles are captured in all the photos taken at the same time. 3. Calibrating the camera system to reduce …”

F. Halmos, M. Bartz, S. Wartzack Schadens- und Ausfallmechanismen bei Wälzlagern unter Schwenkbewegungen S. 321-402

„… extent these calculation approaches are valid at all, since wear can occur here as a failure mechanism …” „… WEC typically appears in the form of breakouts and crack networks at 5-10 % of the conventionally …” „… lubricant formulations, an in-situ measurement method for an oscillating sliding test was developed at …”

doi.org/10.51202/9783181024157

Yasser Estuardo Samayoa Paredes - Low-Delay Video Communication System over Wireless Channels Based on HEVC and OFDM

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Yasser Estuardo Samayoa Paredes

Low-Delay Video Communication System over Wireless Channels Based on HEVC and OFDM

Reihe: Informatik/ Kommunikation

Band 881 2023

Treffer in den folgenden Teilen:

Digital Video Compression S. 15-49

„… coding 27(a)(b)Figure 2.5: Illustration of close GOP structuresI frame, which is encoded using only intra …” „… lengthof five frames is chosen for the illustration of both coding structures.Furthermore, it can be seen …” „… video signal.Afterwards, an introduction of the main structure of a generic hybridvideo coding is …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… 222A C K N O W L E D G E M E N TThis thesis was written during my time at the Institut für …” „… work at TNT in his group and for all of the facilities he providedme to conduct my research. Specially …” „… friendly support at alltimes at TNT.I would like to thank my research colleagues for the wonderful …”

Video Communication System S. 85-119

„… 4V I D E O C O M M U N I C AT I O N S Y S T E MIn this chapter a low delay, point-to-point video …” „… system is capable of synchronizing the recoveredvideo at the receiver with the original video at the …” „… available frames at the receiver for its comparison.Moreover, a suitable metric based on the conventional …”

Introduction S. 1-14

„… by the cameraat the transmitter and it is conveyed over the channel until it reachesthe display at …” „… system, thus, at the output of the videocoding the video signal results in an inevitably distorted …” „… compressed video signal thatcan be customized at the video encoding block. The main goal of a …”

Communication Systems S. 50-84

„… 3C O M M U N I C AT I O N S Y S T E M SIn Chapter 1.1 a video communication system was introduced …” „… achieve at the receiver b̃v = bv most of the time,where b̃ is the estimated information bit at the …” „… receiver at positionv = 0, 1, ..., q − 1. The i.i.d. assumption of b can be only achieved by anideal video …”

doi.org/10.51202/9783186881106

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2022

Reihe: VDI-Berichte

Band 2389 2022

Treffer in den folgenden Teilen:

D. Mevissen, L. Uhlmann, U. Kupper, J. Brimmers, T. Bergs Analysis of friction of bowl-shaped surface structures resulting from alternative gear manufacturing processes S. 1371-1382

„… the bowl-shaped surface structure. Even looking at further roughness parameters, such as Rsk, in order …” „… machine hammeringObjectiveManufacturing of Alternative Surface StructuresAnalysis of Roughness Changes and …” „… certain module are not required. Furthermore, the surface structure resulting from the EDM process is …”

F. Lagier, A. Bischofberger, K. Bause, S. Ott Suitability of additive manufactured PEEK gears as a means of gear sampling for automotive high-speed gearboxes S. 1045-1060

„… of Product Engineering at Karlsruhe Institute of Technology (KIT), Karlsruhe Zusammenfassung Die …” „… . 2389, 20221046the gearbox is subjected to high accelerations, while being simultaneously operated at a …” „… gearbox [5]. Due to the reduced torque at the motor output, the use of lightweight materials with a lower …”

P. Barreiro, S. Pfrimmer, G. Armutcu, J. Hermes Quality improvement of an aluminum gearbox housing by implementing additive manufacturing S. 1429-1446

„… medium-size aluminum gearbox housings at large quantities and high rates is commonly carried out by die …” „… because this technology allows the cooling system to be printed without a supporting structure. The …” „… 11% per casting cycle. Introduction Additive manufacturing (AM) established itself in the industry at …”

F. Thurner Light into the black box: using AI software to identify unknown mechanisms of action and resolve acoustic/NVH problems – practical example of a passenger car powertrain S. 779-786

„… , these are the following measurements: 1. Acoustic/NVH measurements with airborne and structure …” „… -borne sound on EoL test rig 2. Acoustic/NVH measurements with airborne and structure-borne sound overall …” „… path analysis with / without order analysis or at neighbouring positions to a suspension point to the …”

P. Tenberge, J. Vorgerd, L. Gondecki 2-disc tribometer for various tests on sliding/rolling contacts with tribological loads such as in tooth flank contacts S. 145-156

„… the material structure and lead to premature failure of the machine elements [9]. Some further …” „… from high negative values (<-50%) at the start of the meshings to high positive values (> 50%) at the …” „… high positive values and back once per revolution. At an average drive speed of 3000 rpm, the disc …”

J. J. Zhang, Prof. Y. M. Hu, X. X Luan, Z. S. Zhang Research on the effectiveness of roelands formula with constant VPC in EHL of higher pair contact S. 119-132

„… temperature rise of EHL are highly sensitive to the VPC at low temperature and high pressure. Even a modest …” „… fluid-structure interfaces (Pa)InstructionAn essential issue concerning the elastohydrodynamic lubrication (EHL …” „… box in Fig. 1. The local model is comprised of structure module (local model of the ball and local …”

N. Blech, T. Tobie, K. Stahl, C. Guntner, S. Schurer Material influence on mechanical properties of gears with alternative microstructures S. 265-280

„… with low proportion of retained austenite, there were investigated material structures with differing …” „… high proportion of retained austenite. The last presented variant had a bainitic structure in the …” „… micro-structures on the gear load carrying capacity. For this purpose, gears made of 18CrNiMo7-6 were tested with …”

H.-J. Dennig, L. Zumofen, A. Kirchheim, S. Winterberg, D. Stierli Increasing the safety against scuffing of additive manufactured gear wheels by internal cooling channels S. 1345-1364

„… " dimensional accuracy, an allowance of 1 mm (at the flanks 0.5 mm) is added. The layered structure of the …” „… addition to the manufacturing of force-flow-optimised lightweight structures, e.g., those used in …” „… toolmaking, the integration of internal channel structures enables new opportunities for optimisation [5, 6 …”

S. Oberle, V. Labriola, E. Melnikov, G. Gariglio High performance plastic gear solution in the engine environment S. 1033-1044

„… acting at different frequencies, tough operation cycles and also and working inside a contaminated medium …” „… order to confirm the design, prototyping options and related validation stages (at component level) are …” „… balanced just by the geometry of the crankshaft as they run at double frequency than its own revolution …”

Y. Koch, G. Martin, E. Kirchner, D. Quirnheim Pais, R. Slatter Feasibility study of measuring instantaneous angular speed of helical gears with magnetoresistive sensors S. 253-264

„… the measurement of structure-borne noise with acceleration sensors. New approaches, such as measuring …” „… measure acoustic emissions mostly via structure-born sound with one or three-dimensional accelerometers …” „… fluctuations can be measured as variations in the IAS and a structure-borne noise excitation that can be …”

D. Zorko, Z. Bergant, B. Černe Potential of woven carbon fiber reinforced polymer composite gears S. 1071-1082

„… steel pinion. The tests were carried out at torques ranging between 0.4 Nm and 0.8 Nm, and a rotational …” „… testing system (Fig. 2). Experimental runs were performed at five torque levels ranging from 0.4 to 0.8 Nm …” „… unidirectional rotation with a rotational speed of 1400 rpm. The tests were performed at an ambient temperature …”

J. Theling, M. Willecke, J. Brimmers, C. Brecher Influences on the Excitation Behavior of Lightweight Planetary Gearboxes S. 421-432

„… gear mesh. At the same time, the more flexible mesh also favors a better load distribution and load …” „… . Furthermore, all investigations were carried out with statically positioned structure-borne noise sensors and …” „… deformation in the geared area due to the connecting structure. In order to additionally investigate variable …”

R. Chen, D. Qin, C. Liu Study on electromechanical coupled dynamic characteristics of transmission system of wind turbine S. 763-778

„… , and the internal excitation frequency of the gear system at all levels and the electrical frequency …” „… wind power drive system not only receives the time-varying drive torque at the drive end, but the load …” „… support mechanisms and floating structures, errors, and the system’s physical parameters that affected the …”

N. Hessinger, M. Braunstingl, H. Bansal Advanced use of DOE in gear geometry optimization S. 281-286

„… for improvement in performance of structure borne noise, efficiency, and durability for individual …” „… parameters is executed not only regarding quality at an individual load point but also concerning their …” „… conditions at different loads and misalignments. Misalignment Evaluation As an initial definition for the …”

A. Zhang, J. Wei, M. Cao, B. Peng Dynamic modeling and accuracy evaluation method for complex irregular components of aviation transmission S. 573-584

„… thin-walled structures. The assumption of large stiffness is no longer applicable. The casing is rich in …” „… irregular thin-walled structures. FE method can better restore the original physical model by taking into …” „… for complex structures. The modes [2] and stress analysis [3] of the casing parts can be easily solved …”

K. Lubke, M. Stein, S. Lin Validation of evaluation algorithms for cylindrical involute gears on coordinate measuring machines – new challenges according to standardization S. 1529-1538

„… project located at the Physikalisch-Technische Bundesanstalt (PTB) in Germany. The aim is the …” „… within the TraCIM online platform located at the PTB. TraCIM covers the work of the “Traceability for …” „… gears” aims at a solution for this situation. In contrast to the first software test provided by the PTB …”

L. Bo Integrated optimization of structural and control parameters for a hybrid electric system S. 927-934

„… connectionElectrical connectionEngine Generator Motor ABattery Motor BHEV Fig. 1: Structure of series hybrid electric …” „… system The structure of the research object is shown in the figure 1. In many engineering practices, it …” „… is necessary to optimize multiple objectives at the same time, that is, to find the vector composed …”

A. Baumann, B. Bertsche Coefficient of friction behavior of gear oils and significance for the meshing process of spur gears S. 745-762

„… friction of an oil to be assessed at low speeds in the range from boundary and mixed friction to …” „… elastohydrodynamic fluid friction at high speeds. The investigations show that the coefficient of friction behavior …” „… parameters of a mineral gear oil from traction curves. At 75 °C lubricant temperature, the coefficient of …”

S. Bill Efficiency improvement and surface protection by using particle-based phyllosilicate-additive S. 935-942

„… lower local pressure. Additionally, due to the special layered material structure the particles can be …” „… the friction significantly almost at all loads and the maximal friction reduction was 38 %. The wear …” „… in this configuration at the University of Mannheim, Germany. These include Castrol Optigear …”

A. Spatzig, N. Fujimura, P. de Oliveira Teixeira Practical analysis of productivity of grinding tools in the process of internal generating gear grinding S. 1319-1330

„… productive conditions while keeping high gear quality. A two-step approach was chosen. At first, an analogy …” „… package, leading to a positive effect on the efficiency of the overall system [1]. At the same time …” „… process developed by the company NIDEC MACHINE TOOL CORPORATION that aims at the manufacturing of internal …”

S. Matkovič, M. Kalin, A. Pogačnik Dimensional stability of moulded polymer gears under various environmental conditions S. 1061-1070

„… (like PA) are prone to water/lubricant absorption, due to their chemical structure. As a result …” „… water molecules is due to the amorphous parts of the semi-crystalline structure of thermoplastic, which …” „… % relative humidity, 80 % relative humidity, submerged in demi water and PAO 8 oil, at two temperatures, 25 …”

A. Sitzmann, T. Tobie, K. Stahl, S. Hoja, S. Schurer Deep nitriding – contact and bending strength of gears with increased nitriding hardening depth S. 875-890

„… scuffing, wear and corrosion and due to their increased heat resistance are also suitable for the use at …” „… device. The torque can be controlled indirectly at the torque-measuring clutch as a twist of the torsion …” „… , with a maximum amount of 45 μm each at the edge of the flank over a width of approx. 3.5 mm.The …”

J. Gotz, F. Siglmuller, M. Furst, M. Otto, K. Stahl Experimental investigation of the dynamic load sharing of planetary gearboxes S. 409-420

„… measuring the structure-borne noise at the fixed ring gear in radial direction (see Fig. 9, measurement …” „… radial structure-borne noise at the ring gear during seep ramp-up to 6800 rpm and 1500 Nm load torque …” „… Hayashi [10]. At high rotational speeds and for low loads the load sharing behaviour is influenced …”

D. Drummer, D. Schubert, C. Herzog In situ measurement of geometric and structural influences on the operating properties of polymer gears S. 1099-1116

„… non-stationary wear rates, and a following steady state at lower constant wear rates [2]. This is due to the …” „… roughness [5] and structure [4, 6] of the metal pinion, degree of crystallinity and spherulite size [3], or …” „… analysis of the deformation of gear sets under operating conditions was developed and validated at the …”

M. Furst, J. Gotz, M. Otto, K. Stahl Automation of gearbox design S. 787-802

„… bearings, shafts and gears. At an early stage of development, requirements and restrictions need to be …” „… components into consideration at a time. VDI-Berichte Nr. 2389, 2022 7871. Introduction The only way to …” „… keep pace with the trend toward ever shorter development times and, at the same time, constantly …”

L. Ryali, D. Talbot Dynamic load distribution of planetary gear sets subject to both internal and external excitations S. 389-408

„… and the ability to predict the contact stress distributions at gear meshes, thus enabling one to have …” „… distributions at all gear meshes of the planetary gear set. Owing to its unique tooth compliance model, it can …” „… Modeling and Assembly The input/output structure of a gearset typically consists of shafts and multiple …”

L. Bonaiti, F. Rosa, P. Mahendra Rao, C. Gorla, F. Concli Gear root bending strength: statistical treatment of single tooth bending fatigue tests results S. 15-30

„… as the position of the knee itself. Hence, in order obtain a curve at different reliability levels, a …” „… performed in a symmetrical configuration, i.e. two teeth loaded at the same time, also the survival of one …” „… ?? Base diameter ?? Number of cycle at Spindel’s knee position ?? Root diameter ?? Stress at Spindel’s …”

T.-T. Mac, D. Iba, Y. Matsushita, S. Mukai, T. Inoue, A. Fukushima, N. Miura, T. Iizuka, A. Masuda, I. Moriwaki Application of genetic algorithms for parameters identification in a developing smart gear system S. 239-252

„… sensor parts are positioned intentionally at the root of each tooth. Since these sensors are resistance …” „… sensor types, any cracks happened at the tooth root during the gear operation will change the value of …” „… operation are called right then to perform the combination and mutation of the latest selected structures of …”

B. Schalley, J. Brimmers, T. Bergs Potential and challenges of profile gear grinding with vitrified bonded cBN S. 1569-1582

„… gear grinding. At the same time, despite the potential of vitrified bonded cBN tools for profile gear …” „… produce grinding burn at a much lower specific material removal. At a specific material removal of V'w …” „… relatively high specific material removal can be ground at high gear quality without the occurrence of …”

M. Weigand Smart and intelligent chip detectors using machine learning to monitor wear particles and dangerous degradation of critical powertrain components S. 995-998

„… team of former students at TU Wien in Vienna (Austria) started to work on new concepts of condition …” „… structure. These magnetic parameters include shape of the hysteresis, saturation magnetization, and coercive …” „… at any rotational speed of components and flow velocity of wear particles as well as with any …”

X. Tian, L. Zhou, J. Han, L. Xia Research on tooth flank twist compensation of continuous generating grinding gear based on flexible electronic gearbox S. 1005-1018

„… with crowning lead modification, the grinding amount at different radii of the same cross section along …” „… structure of the electronic gearbox can be divided into master-slave structure, parallel structure. When the …” „… speed are strictly required, so the master-slave structure and parallel structure are combined in this …”

X. Zheng, Y. Hu FE analysis and predication on the traveling wave – resonance of aero-gears S. 915-926

„… occur at the speed 14472.4rpm;  0/3 forward wave resonance may occur at the speed 14668.4rpm, 15006rpm …” „… , 15039rpm, and 16813.3rpm;  0/4 backward wave resonance may occur at the speed 20820.2rpm, 21189.8rpm …” „… damping ring is aligned at the outside flange of gears (see Fig.2.1(a)). The geometry of damping ring is …”

F. Eigner, S. Heinrich, M. Berger An approach on contact analysis for micro geometry optimization of the gear unit HypoGear S. 943-950

„… (IFMT), Technische Universität Chemnitz 1. Structure of the gearbox Figure 1 a) shows the arrangement …” „… coverage and thus a large number of flanks are meshed at the same time. Fig. 1: a) components of the …” „… line is used in the following by applying a tooth profile gradually along the line at the first gear. A …”

F. Reinle, D. Mangherini, E. Morgano, A. Bongiovanni Combining improved gear efficiency and improved fatigue performance through mass finishing S. 609-620

„… also induced due to the plastic deformations with a maximum stress level at the surface since it’s …” „… less process energy input. VDI-Berichte Nr. 2389, 2022 611 Fig. 4: Residual compressive stress at root …” „… stress ratio R = 0 and at room temperature. A significant change of the stress concentration factor Kt …”

M. Weigand, C. Gachot Improved rotorcraft drivetrain safety and related research with special focus on improved lubricants for rotorcraft transmissions S. 561-572

„… Tribology. The paper starts with an overview about the activities in teaching and research at TU Wien in …” „… Transmissions for Aviation at TU Wien TU Wien addresses Transmissions for Aviation with Special Courses …” „… ) was started at the same institute at TU Wien. This paper will show that a lot of topics are linked …”

A. Hessler, B. Neubauer NVH-performance versus Costs – Coherent R&D for gears, system and manufacturing S. 103-118

„… . Signals are recorded with structure-bone noise acceleration sensors and get analyzed with the aid of …” „… gear as possible (preferably at least 5 teeth). The f scatter yields a time-dependent change in the …” „… find statistical relationships between the measured structure or airborne noise of transmission systems …”

P. Mahendra Rao, S. Foletti, L. Bonaiti, C. Gorla, S. Beretta, F. Concli Mode III threshold under rolling contact fatigue and development of a test gearbox for planet gears S. 499-510

„… to study the behaviour of subsurface cracks at the roller-race interface that can lead to either …” „… , a preliminary analysis that aims to define the complex stress state at, and below the surface at the …” „… actual service conditions at said interface, influences from VDI-Berichte Nr. 2389, 2022 499 multiple …”

A. Alnahlaui, P. Tenberge Improved method for the determination of tooth root endurance strength S. 31-44

„… applications is driven by a continuous striving for increased functionality and power density at the lowest …” „… challenges in gear development. At the same time, a small installation space with reduced development and …” „… the tooth root fatigue strength with a good approximation of the standard deviation at minimum cost …”

S. Vonderschmidt, A. Ott, A. Vonderschmidt High speed machining with magnetically geared driven tools on rotatory milling machines S. 1415-1428

„… of magnetic transmissions is analogous to planetary gearboxes. The structure of magnetic …” „… maintenance, no lubricants can leak out of the transmission. A second benefit utilized is the slip effect at …” „… be realized more favorably – using one component less. At the same time, the entire function (drive …”

S. Matkovič, M. Kalin Effect of tribological properties on tooth root fatigue failure of polymer gears S. 1257-1268

„… characteristics of such contacts usually depend on the properties of the tribofilms that generate at the surfaces …” „… structure, and material combinations, reinforcements, etc. [2,3]. Most of those parameters were studied …” „… tooth occurs at the critical value of the operation. The melting happens due to poor thermal resistance …”

P. Tenberge, R. Uelpenich, P. Dong, R. He Very fast tooth root optimization – general tool geometry for much smaller tooth root stresses S. 457-468

„… gear at the point of highest load with its tool tip corner. Mostly, the tool corner is rounded …” „… diameter of the gears meshing with each other. This paper describes a modified tool geometry at the tip …” „… cylindrical gears is defined. It occurs if the load is applied at the outer single point of meshing, and in …”

S. Reitschuster, C. M. Illenberger, T. Tobie, K. Stahl Application of high performance polymer gears in light urban electric vehicle powertrains S. 1181-1196

„… . Exceptions are high-performance po-lymers such as PEEK, which can also be operated at higher temperature …” „… [16]. Fig. 3: WLTP test cycle of class 2 vehicles The associated torque and speed characteristics at …” „… FVehicle is calculated in the horizontal. With knowledge of the total driving resistance FVehicle at the …”

S. A. Bohme, J. Keski-Rahkonen, T. Komssi A standardizable approach to tooth flank fracture S. 371-388

„… work is part of a wider research program, aimed at the prediction and preventionof subsurface-initiated …” „… , carburizing at multiple carbon potentials, the amount ofmartensitic transformation (i.e. the cooling rate …” „… TFF-critical materialdepth but predicts relatively large surface-near utilization levels even at the studied …”

J. Hochrein, M. Trubswetter, M. Otto, K. Stahl Direct flank geometry calculation for face gears S. 1447-1460

„… at point Y 2 Face gear 0 Plane of action S Cutter I Interference boundary SP Pointing limit boundary …” „… U Undercut boundary n Normal section t Transverse section b Value at the cutter base circle a Value …” „… at the tooth tip i Inner Radius face gear o Outer Radius face gear Ff Value at root form circle …”

P. Roth, M. Hein, K. Stahl Scuffing load capacity calculation of worm gears S. 811-824

„… gears, a scuffing load capacity calculation is not available at the moment. This paper presents a …” „… combinations are also prone to the failure mode scuffing at higher speeds. As scuffing damage can lead to rapid …” „… , 2022814distance of ? 100 ?? and a gear ratio of ? 20,5 that is loaded with a speed of ?1500 1/??? at the …”

N. Sagraloff, T. Tobie, K. Stahl Suitability of the test results of micropitting tests acc to FVA 54/7 for modern practical gear applications S. 469-484

„… of 16MnCr5 and 18CrNiMo7-6 according to chemical analysis at the research center and the …” „… according to chemical analysis at the research center. Specifications of the nominal values according to …” „… : Chemical properties of 18CrNiMo7-6 according to chemical analysis at the research center. Specifications of …”

J.-A. Meis, M. Walkowiak Influence of case hardness depth on tooth interior fatigue fracture S. 863-874

„… hardness profile due to segregations. Fig. 1: Structure of assessment method [1] Figure 1 shows a …” „… then calculate the load at which intersection of the stress vector with the strength limit occurs. The …” „… on the creation of the gear geometry. At Envision a geometry simulation tool was developed to be able …”

B. Guilbert, P. Velex Influence of thin rimmed/-webbed gears on transmission dynamic behaviour – Approximate dynamic factor formula S. 523-532

„… along with sub-structures (super-elements), which account for gear body contributions [18] as …” „… are the maximum dynamic factor R (maximum dynamic-to-static mesh force ratio at a given speed or the …” „… maximum of r defined in (2)) and the RMS of the axial displacement at the node on the gear rim shown in …”

C. Li, B. Peng, Y. Luo Research on indexing error of gear with few teeth in rolling process S. 445-456

„… geometric relationship and process parameters of rolling tool at the initial stage is established. The …” „… satisfies !", #$is the expansion angle of the corresponding point K at the involute indexing circle, $ is …” „… the pressure angle at point K on the involute profile, % & $ & , #$ is the expansion angle, and …”

L. Hildebrand, F. Dangl, M. Sedlmair, T. Lohner, K. Stahl CFD analysis on the oil flow of a gear stage with guide plate S. 677-694

„… derived at an early stage of the development process, enabling an optimized gearbox design at reduced …” „… potential to derive essential information at an early stage of a gearbox development process (Morhard et al …” „… with oil distributions at the corresponding test rig by means of a high-speed camera are in good …”

P. Rodel, R. Spieler, M. Indenbirken, T. Nuisl Holistic friction optimization of transmissions – a significant contribution for sustainability S. 731-744

„… design optimization to get insight in the product performance at an early stage of the product …” „… structure is initially defined, containing e.g. shafts, bearings, gears, and housings including their …” „… gearing and multiple teeth contact at different mesh positions are shown. The three implemented analytical …”

Titelei/Inhaltsverzeichnis S. I-XXVIII

„… National Bibliography); detailed bibliographic data is available via Internet at www.dnb.de.Preflight Lx3 …” „… gear pair at speeds above its primary resonance …” „… 1045F. Lagier, A. Bischofberger, K. Bause, S. Ott, IPEK – Institute of Product Engineering at …”

doi.org/10.51202/9783181023891

Jan Voges - Compression of DNA Sequencing Data

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Jan Voges

Compression of DNA Sequencing Data

Reihe: Informatik/ Kommunikation

Band 878 2022

Treffer in den folgenden Teilen:

Standards and Implementations S. 112-128

„… becomes obvious by looking at their releasedates—1985 (FASTA), around 2000 (FASTQ), and 2009 …” „… (SAM/BAM)—orby looking at their design. These formats are all (except the BAM format,which is the binary …” „… yielded promising results, and hence, apublic call for proposals [ISO16b] was issued at the 115th MPEG …”

Preliminaries S. 12-44

„… FrancisCrick identified the double helix molecular structure of DNA [WC53].This structure is schematically …” „… , yieldingbiologically functional proteins with a three-dimensional structure.Considering the essential role that nucleic …” „… structure of proteins,especially that of insulin” [Nob21a].15preliminaries2.2.2 High-Throughput MethodsThe …”

Publications S. 153-166

„… (2014), pp. 246–251. doi:10.1038/nbt.2835.153P U B L I C AT I O N Sjournal articles[Lau+19] T. Laude, Y …” „… . “Method for encoding and de-coding of quality values of a data structure.” EP3652862B1,US10938415B2.156 …” „… en-coding and decoding of quality values of a data structure.”CN110168650A, EP3526708A1, US20210295950A1 …”

Introduction S. 1-11

„… identifiedthe double helix molecular structure of DNA [WC53], depicted schemat-ically in Figure 1.1. Aided by …” „… https://www.cancer.gov/tcga1introductionFigure 1.1: The double helix molecular structure of DNA. Reprinted by permissionfrom …” „… human genome at a coverageof 200×.Contents Format Size Bandwidth25 Mbit/s 1 Gbit/sReads FASTQ ≈ 1,285 …”

doi.org/10.51202/9783186878106

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