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International Conference on Gears 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2389 2022

Results in this title

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

„… : stephan.a.bohme@ntnu.no1A standardizable approach to Tooth Flank FractureStephan André Böhme, Department of Mechanical and …” „… of early-stagetooth flank fractures imply a mode II crack initiation under surface-parallel …” „… surface-parallel ma-terial planes, yielding a standardizable approach for the study of tooth flank fracture in …”

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

„… fracture became more important over the last years, especially for wind gearboxes. Usually a flank fracture …” „… the lack of methods to detect a flank fracture in early stages of the crack initiation and the …” „… others reach the high cycle fatigue regime, flank fractures currently are one of the main concerns during …”

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

„… N/mm2Pulsator normal stress FPnin kNFailure (tooth root fracture)Passed specimen50 % Probability of …” „… bending strength and the flank load carrying capacity were investigated. 1. Introduction In addition to …” „… flank fatigue strength, individual investigations have been carried out on nitrided gears over the past …”

F. Mieth, C. Ulrich, B. Schlecht Stress calculation on bevel gears with FEM influence vectors S. 585-596

„… flank fracture ISO Standard for bevel gears available. The knowledge gained from cylindrical gears ISO …” „… correction factor, as it is not statistically validated. The local flank fracture load capacity ( ) for the …” „… depth of CHD = 0.3 mm the failure mode changes from pitting to flank fracture by increasing the load …”

E. Lothman, M. Hein, U. Steiner Increased load carrying capacity of gears through optimized steel performance, surface conditions and processes S. 637-650

„… residual stress conditions on tooth root and flank. Improved surface conditions should reduce the …” „… specified maximum number of load cycles was reached or if 4 % of the working flank area of a single tooth is …” „… flank condition. For the tooth bending load capacity, a test run was stopped if the specified maximum …”

K. Stahl, T. Tobie, C. M. Illenberger Standardized methods of load capacity calculation of plastic gears S. 1173-1180

„… calculation approach for determining tooth root and tooth flank temperature accord-ing to VDI 2736 [11]. For …” „… service life of plastic gears is largely determined by the tooth root load capacity. A tooth root fracture …” „… usually leads to an immediate total failure of the gear. Fig. 2 shows an exemplary tooth root fracture at …”

G. Hlebanja, M. Hriberšek, M. Erjavec, S. Kulovec Influence of the tooth flank shape on wear for a steel-POM gar pair S. 1295-1304

„… fatigue, flank fracture, excessive wear, pitting), whereas thermal failure due to overheating is …” „… Influence of the tooth flank shape on wear for a steel-POM gar pair G. Hlebanja, M. Hriberšek, M …” „… tooth profile could be presented. And wear is compared depending on the tooth flank shape, i.e., the …”

F. Muller, S. Schumann, B. Schlecht Innovative tooth contact analysis with non-uniform rational b-spline surfaces S. 171-184

„… the TCA, the discrete flank points are converted into a continuous and differentiable surface …” „… the calculation of local stress on the tooth flank as well as in the tooth root. Derived from this …” „… , the local load capacity regarding flank and root can be determined. In addition, this simulation tool …”

J. Koenig, D. Kehle, K.-P. Heinzle Investigation of the failure mechanisms of plastic materials with and without fiber reinforcement S. 1269-1280

„… VDI-Berichte Nr. 2389, 2022 1269 VDI 2736-2 [6] for both the tooth flank (pitting) as well as the tooth root …” „… subsequent deformation of the tooth. According to Ehrenstein [11], tooth root fracture is to be expected as …” „… made of POM with sufficiently good lubrication. Otherwise, a failure of the tooth flank occurs more …”

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

„… stress (see equation (1)) and the flank pressure (see equation (2)). However, as shown in [13, 14] the …” „… /minLowMediumHighVDI-Berichte Nr. 2389, 20221186well as the pressure on the tooth flank result in values that exceed the …” „… occurring flank pressures at the first gear-stage are the crucial point in this study when designing the …”

K. Daubach, M. Oehler, B. Sauer Wear simulation of worm gears based on an energetic approach S. 329-342

„… the modified tooth flank geometry of the worn worm wheel, in order to consider the influence of wear …” „… detailed in [3, 4]. Under realistic operating con-ditions, the lubricated contact of the tooth flanks of …” „… of material, material fractures and wear particles form. The critical energy level is given by the …”

A. Hilligardt, J. Klose, V. Schulze A new method for avoiding meshing interference in gear skiving S. 1305-1318

„… fully characterized by analyzing a profile-shifted conical gear pair [9]. The flanks of the tool can …” „… contact does not spread over the tool flank, because it is limited to the cutting edge. The tool and …” „… workpiece mesh under an axis crossing angle. This is creating the cutting speed in flank direction while the …”

Titelei/Inhaltsverzeichnis S. I-XXVIII

„… approach to tooth flank fracture 371S. A. Böhme …” „… contacts with tribological loads such as in tooth flank contacts …” „… 23, 2022 | 08:38:21 | 148 mm x 210 mm f Gear strength – flank propertiesCombining improved gear …”

K. J. Winkler, T. Tobie, K. Stahl Influence of grinding zones on the tooth root bending strength of case carburized cylindrical gears S. 287-304

„… process and a final shot blasting treatment. Usually only the gear flanks are additionally ground. The …” „… , subsequent shot peening is time-consuming and expensive. The already finished tooth flanks usually have to be …” „… covered at great expense to avoid an increase of the tooth flank surface roughness due to shot peening …”

W. Kassem, M. Oehler, B. Sauer, S. Schmidt, J. Hausmann Investigation of the time-dependent behavior of plastic gears with local tribological simulation S. 1281-1294

„… deformation, tooth root fracture due to fatigue, surface breakdown, and abrasive wear also play a role …” „… measurement data of the real tooth flanks using a contact simulation based on half space theory [19]. It …” „… of rubber tires. Wear simulation To take account of the changing flank geometry due to wear in the …”

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

„… process, good running-in properties and high resistance to tooth root fracture. This material is also …” „… normal force acting on the tooth flank travels along the line of action [4]. As a result, the tooth flank …” „… the following article. The tooth flank is primarily exposed to pressure and friction with simultaneous …”

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

„… . For this purpose, the micro-geometry (flank modifications), macro-geometry (helical gears) and …” „… appear as a grey and dull coherent area on affected surfaces. [7] Figure 2 shows a micropitted gear flank …” „… and a 950x magnification of a part of this area. (a) (b) Fig. 2: Micropitted gear flank (a) and a …”

A. Eric, D. Olveda, T. Froschmeier, V. Schulze Local pitting fatigue concept with EHL simulation for case hardened gears in electrical drives S. 133-144

„… fracture mechanics. In the early 2000s, Hertter [3] applied the local fatigue concept to gears and laid the …” „… develop advanced approaches for pitting fatigue calculation, practical gear flank design still heavily …” „… local pitting fatigue concept that evaluates a complete meshing cycle of two gear flanks. The model is …”

B. Reetz, T. Munch, W. Kappeler Challenges for lead-free brass alloys in worm gears S. 1467-1488

„… flank. Strength against fracture at the tooth root is also very important. In worm drives different …” „… sets under these conditions [7]. 1. The contact and loading situation of worm gears The tooth flanks …” „… the wheel gear flanks is almost entirely sliding [8]. A simplified model (Fig. 2) can be used for …”

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

„… on the tooth flanks was measured on a Tesa Rugosurf 90G profilometer before the test. The surface …” „… steel gear, since wear was more pronounced in that part of meshing due to higher load on the flank …” „… surface (Fig. 10b). Employing the energy dispersive spectroscopy (EDS), the CFRP gear’s flank surface was …”

B. van Wissen, M. Kanters, F. Mitsuzuka, K. Iwanaga, M. Meuwissen, A. Hasanovic Predicting static and fatigue performance of fiber reinforced plastic gears S. 1083-1098

„… and durability performance with root fracture as a failure mode. Applications with many different load …” „… local element size of 0.1mm around possible failure locations like at the flank and in the root of each …” „… for each case tooth root fracture. This is also shown in Figure 7b. Fig. 3: a) Measured static …”

M. Zalfen, J. Lovenich, O. Malinowski, C. Brecher, J. Brimmers, S. Neus, S. Stark, D. Kruger Test rig concept for high power VHCF gear testing S. 485-498

„… are primarily available for this area. SCHURER investigated late tooth root fractures up to a limiting …” „… tooth flank load capacity, back-to-back or recirculating gear test rigs are established, because of a …” „… in case of a tooth root fracture. In the first step, the test rig requirements are defined and …”

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

„… either on Linear Elastic Fracture Mechanics principles or fatigue failure criteria in presence of defects …” „… capabilities and safety factors. For all gears, the design was aimed to maximize the root safety (? and flank …”

doi.org/10.51202/9783181023891

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International Conference on Gears 2017

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2294 2017

Results in this title

J.-A. Meis Flank fracture assessment under consideration of material quality S. 395-398

„… gearboxes that failed by flank fracture, where the crack initiation often is found in higher depth, but on …” „… Outlook A method to predict the failure probability of flank fracture was presented. The assessment …” „… residual stresses have a high impact on the risk of flank fractures, but are not well known in the …”

A. Kubo Change of gear steel quality as function of globalization – Back ground of the development for high speed automatic hardness tester S. 41-50

„… flank. Today, high strength steel, e.g. for gear usage, is designed to disturb the movement of …” „… : fracture surface of case hardened steel specimen made from JIS SCN420H after bending-rotating endurance …” „… before endurance test. Fig.3(left) shows a failed tooth flank of case hardened ground helical gear …”

C. Brecher, C. Löpenhaus, F. Goergen, D. Mevissen Crack propagation analysis of pitting damages of high-strength material systems in gear applications S. 281-292

„… tooth flank is in addition to micro pitting and tooth flank breakage the occurrence of pittings. If the …” „… by a triangular shape, occur [6], Fig. 1. Relative to the tooth flank, pittings occur pref …” „… , the computational analysis of the tooth flank contact takes place on the evaluation of the temporal …”

C. Weber, T. Tobie, K. Stahl Investigation on the flank surface durability of gears with increased pressure angle S. 173-184

„… carburized gears are characterized by a shell-shaped material fracture in the area of the active flank …” „… Investigation on the Flank Surface Durability of Gears with Increased Pressure Angle Christian …” „… the tooth flank with special regard to the damage mechanisms pitting, micro-pitting and scuffing. The …”

J. Reißmann, E. Leidich Computation of the tooth root strength of Worm Wheels with a calculation program based on local stresses S. 373-394

„… the wheel are wear and pitting of the flank or fracture of the flank and the teeth, depending on the …” „… ). VDI-Berichte Nr. 2294, 2017 383 Flank fracture assessment under consideration of material quality …” „… Jean-André Meis, Siemens AG, Bocholt Abstract The assessment of the risk of flank fracture became more …”

K. Mao, V. Goodship, N. Madhav, R. Ramakrishnan, P. Langlois Experimental Investigations of Polymer Composite Gear Performance S. 1625-1636

„… gears failed due to pitch fracture. The polycarbonate gears fractured only on the driver as shown in …” „… , nylon and PEEK) to understand the gears’ contact, friction, wear and fracture behaviour. Two …” „… fractures. The fractures seen are related to the tooth friction and wear form. Excessive wear of the tooth …”

D. Ghribi, C. Peyrac, M. Octrue Shot peening of gear tooth flanks: Search for an optimal surface topography against the micropitting S. 153-162

„… is a first responsible to initiate fracture/failure of components and to accelerate the subsurface …” „… Shot peening of gear tooth flanks: Search for an optimal surface topography against the …” „… regard to the micropitting damage of gear tooth flanks. To achieve this objective, the approach adopted …”

M. Hein, T. Tobie, K. Stahl Test method for time-scaled fatigue tests of gear transmission systems S. 1073-1084

„… - Bearing damages - Tooth flank fracture (see for example [6, 12] for further information) The calculation …” „… ). [6] Hein, M.; Tobie, T.; Stahl, K.: Parameter study on the calculated risk of tooth flank fracture of …” „… investigated locally on the tooth flank and analyzed by means of a local damage accumulation. In addition to …”

B. Zhmud, J. Blomkvist, M. Fallström An advanced thermal processing & coating process for enhancing gear tribology S. 1451-1462

„… significant progress in gear design. Still, gears sometimes fail. Gear tooth flanks are most vulnerable to …” „… . Tribolayers formed on tooth flanks due to interaction with common EP/AW additives, such as sulfurized olefins …” „… fracture SEM, stylus and white light profilometry. VDI-Berichte Nr. 2294, 2017 1453 3. Results and …”

D. Krüger, E. Leidich, I. Römhild, R. Heß, H. Linke Geometry, pitting and tooth root capacity of asymmetric gears S. 751-768

„… significantly. For an asymmetric tooth profile one flank will be designed with a larger pressure angle (main …” „… load flank, following flank I and subscript I) than the other flank (coast flank, following flank II …” „… flank decreases the contact pressure because of the larger radius of curvature at the points of …”

Titelei/Inhaltsverzeichnis S. I-XXVII

„… Endurance – Stress and Material Properties J.-A. Meis Flank fracture assessment under consideration of 395 …” „… and fatigue mechanisms on tooth flanks P. Tenberge A. Kubo Change of gear steel quality as function …” „… Q. Yan, transmission system C. Xiang, Y. Li Page Gear Endurance – Micropitting and Tooth Flank …”

E. Chiappetta, D. Morrey Non-standard spur gear tooth profiles for improved epicyclic gear system performance in low speed applications S. 825-834

„… profile shift on tooth flank load capacity and bending stress is studied [2]. Based on these results …” „… with consequent risk of fracture [8].Subscripts i=(1,2) refer to the pinion and gear respectively …” „… Both pressure angle and profile shift have a direct effect on the flank profile geometry. The …”

C. Gorla, E. Conrado, F. Rosa, F. Concli Austempered Ductile Iron (ADI) for gears: manufacturing, performances and tests S. 977-988

„… fillet radius ∗ - 0.375 Pinion - 17 Flank Roughness m 0.94 Wheel - 18 Accuracy grade ISO AG 5 …” „… portion larger than 4% of the active surface of a single tooth flank. In order to detect the damage, the …” „… measurements of tooth flank hardness resulted in an average value of VDI-Berichte Nr. 2294, 2017984 about 309 …”

E. Erkilic, Z. Burcay Optimizing tooth proportions to improve topland Saribay balance in aerospace bevel gears S. 447-456

„… corners on tooth flanks after case hardening. While many studies are present on optimization of gear …” „… allowable region on the tooth flank to avoid any edge contact. Solution of this optimization problem was …” „… carburizing operations and are prone to fracture. Hence, the primary purpose and motivation of this study …”

C. Brecher, C. Löpenhaus, J. Pollaschek Influence of surface layer properties on tooth root bending strength of cylindrical gears S. 421-432

„… deeper understanding of fracture and material mechanics in contrast to empirical-analytical approaches …” „… materials technology, fracture mechanics and FEbased tooth contact analysis developed by MURAKAMI [5] and …” „… local flank and root load carrying capacity of gears. To calculate the tooth root load carrying …”

T. Frech, C. Löpenhaus, F. Klocke Influence of the contact conditions in cold rolling on the density profile of powder metallurgical (PM) gears S. 1265-1276

„… at and directly beneath the flank, gears are suitable for local densifying processes such as cold …” „… determine the local density profile at the tooth flank as well as in the tooth root. VDI-Berichte Nr …” „… .: Plastic and fracture behavior of ductile materials incorporating void nucleation, growth, and interaction …”

doi.org/10.51202/9783181022948

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International Conference on Gears 2023

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2422 2023

Results in this title

T. Tra My Truong, S. Schumann, B. Schlecht On the Testing of Flank Fracture Calculations Based on 3D-Gears S. 243-256

„… On the Testing of Flank Fracture Calculations Based on 3D-Gears Dipl.-Ing. Thi Tra My Truong …” „… . Abstract During the last few years, the damage mechanism of flank fracture has become a frequent cause for …” „… to be extended in such a way that local flank fracture hazards can be determined. To realise this …”

P. Romio Spur Gear Teeth Reconstruction via Direct Laser Deposition S. 1641-1664

„… micropitting and tooth root fatigue fracture, is one of several gear failure modes encountered in practical …” „… fatigue fracture); (3) Non-fatigue fracture (e.g., tooth root rupture and tooth shear fracture); (4 …” „… ) Plastic deformation (e.g., indentation and fracture after plastic deformation); (5) Manufacturing issues …”

W. Smet Gear geometry, size and material influences not captured in ISO 6336 S. 1267-1272

„… failure modes on case carburized gears (as tooth flank fracture, sub surface-initiated root or rim …” „… 6336-5 [5] VDI-Berichte Nr. 2422, 2023 1269ISO 6336-4 - Calculation of tooth flank fracture load capacity …” „… for assessing the risk of tooth flank fracture, which is still subject to further development. Some …”

J. Lövenich, M. Zalfen, D. Mevissen, J. Brimmers, C. Brecher Crack growth based tooth root life prediction model – an influence quantity analysis S. 109-124

„… mechanical parameters is of high importance. In order to be able to transfer fracture-mechanical lifetime …” „… range. A lifetime for surface and sub-surface induced fractures is calculated, resulting in a stepped …” „… SN-curve. Most of the cycles until fracture occur during crack initiation and micro crack growth. The …”

J. Gründer, A. Monz Analytical Method for Calculating the Nominal Tooth Root Stress in Worm Gear Shafts S. 1091-1110

„… prevent excessive wear and pitting of the tooth flanks as well as tooth fracture due to the softer …” „… of tooth segment fractures of the worm shaft can already be found. Since the worm is only designed …” „… . 1. Tooth Fracture on Worm Shafts Worm gears are helical gear units with an axis cross angle of 90 …”

E. Virtanen, M. Kanerva, G. Szanti Fatigue testing of large sized bevel gears S. 897-906

„… . Komssi, J. G. Santaella, and A. Vinogradov, “Tooth flank fracture – An applied fatigue study of case …” „… as well as the studying of Tooth Interior Fatigue Fracture (TIFF) failure mechanism. TIFF is the most …” „… tooth interior fatigue fracture (from here on TIFF) in addition to a couple of scuffing and fretting …”

T. Schmidt, B. Neubauer, D. Merk White Etching Cracks (WECs) on gears of E-Axle applications S. 257-268

„… finally a part of the tooth tip broke out, s. Fig. 3. The obvious failure mode tooth flank fracture (TFF …” „… White Etching Cracks (WECs) on gears of E-Axle applications Premature tooth flank fatigue Dipl.-Ing …” „… the pitting on the flank, which concludes to a crack initiation and propagation below the flank. Fig …”

I. Hong, D. Talbot Tooth Bending Strain Rate Analysis in a Counter Shaft Drivetrain and Implications on Fatigue Strength S. 53-66

„… multiple fatigue failure modes including tooth bending fatigue, tooth flank fracture, and surface rolling …” „… (i) tooth root fracture (TRF), (ii) tooth flank fracture (TFF), (iii) tooth interior flank fracture …” „… suggests that for carburized gears, tooth flank fracture fatigue failures may be strain rate sensitive and …”

S. Hendricks, M. Solf, J. Brimmers, T. Bergs Investigation of the machinability of different quenched and tempered steels for the alternative process chain of planetary pinions in wind turbine gearboxes S. 1713-1730

„… investigated in the past [2–4]. Different gear and tool combinations were analyzed. Abrasive flank wear …” „… leading and trailing flank in areas A and B respectively, see bottom left of Figure 3, as well as at the …” „… hcu,m = 0.08 mm. The maximum and mean chip length has the highest values on the trailing flank in the …”

S. Matkovič, D. Šeruga, M. Nagode, M. Kalin Prediction of tooth root fatigue failure of polymer gears for dry and oil lubricated contact and its comparison to experimentally obtained results S. 1301-1318

„… statistically verify the lifetime. In addition, different failure modes can act simultaneous e.g. flank wear and …” „… gears are many, from flank failure, thermal degradation, and melting, extensive tooth deformation …” „… cycles at which the wear of polymer gear flanks can become dominant, shielding the effect of root fatigue …”

I. Gonzalez-Perez, A. Fuentes-Aznar, J. Calvo-Irisarri, N. Bilbao-Handley, X. Lopez-Fuentes, A. Fernandez-Sison Evaluation of the effect of the rim thickness on the root stress cycle of helical planet gears with integrated rollers S. 553-568

„… the fracture mechanics with 2D finite element models and tests. Later, in 2004, Kramberger et al. [13 …” „… deviations are added through linear and parabolic functions that provide profile and line flank modifications …” „… presented. The parameter optimization of Hermite curves between the flank and the root land guarantees that …”

I. Atanasovska, D. Momcilovic Analysis of new tooth profile design based on the biomimetics principles S. 945-956

„… the dedendum flank and bottom land surface - root fillet radius: f = 7.3 mm Modification 3-2 - profile …” „… of triangles case 2 - modification both to the dedendum flank and bottom land surface - root fillet …” „… - modification both to the dedendum flank and bottom land surface - root fillet radius: f = 6 mm Modification 1 …”

L. Amar Review of the definition of the loads for spur and helical gears in standards and handbooks S. 301-314

„… spur and helical gears — Part 4: Calculation of tooth flank fracture load capacity [7] ISO/TS …” „… references ISO, HENRIOT, LINKE, and NIEMANN all use the normal force on the tooth flanks in the base plane …” „… Transmitted load in the plane of action (normal to the tooth flank) 2 𝑇𝑑Tangential force (at the pitch …”

M. Rothemund, M. Otto, K. Stahl Applicability of classic analytical calculation approaches for the design of plastic gears S. 1483-1498

„… ]. The flank load capacity is particularly dependent on the selected plastic but also on the lubrication …” „… the relevant parameters for the load capacity calculation, such as tooth root stress and flank …” „… along the tooth profile. According to VDI2736 [5], the safety against tooth root fracture results from …”

A. Yavuz Kanyilmaz, B. Karba, M. VARDAR Classifying plastic beveloid gear quality considering manufacturing errors S. 1159-1172

„… or measurement 2.1. Double-Flank Inspection 2.2. Single Flank Inspection. VDI-Berichte Nr. 2422 …” „… figure shows the plot for a gear with eccentricity as its dominant accuracy deviation. For each flank …” „… . Fatigue and life prediction of gears fatigue and fracture ASM handbook, OH: ASM International; (1996). [11 …”

L. Klee, T. Bergs, M. Solf, J. Brimmers Binder Jetting in Gears – Process Design and Tooth Bending Strength for Gears made of 17-4PH S. 1665-1680

„… respectively undersize on the flanks was detected. The mean value of the endurable double amplitude (NG = 3 106 …” „… analysis revealed a partial undersize on the flanks and thus an insufficient grinding allowance. Therefore …” „… of load cycles and tooth root fracture [18]. According to the HÜCK staircase method, the following …”

Titelei/Inhaltsverzeichnis S. I-XXVIII

„… Industrial and Automotive Drivetrains (IFA), Ruhr-University Bochum, GermanyOn the Testing of Flank Fracture …” „… optimized flank topography 125M. Willecke, J. Brimmers, C. Brecher, Laboratory for Machine Tools and …” „… . Qin, Chongqing University, China Tooth flank load capacityScuffing load carrying capacity of …”

J.-A. Meis Parametric system simulation of load sharing in planetary gearboxes S. 269-280

„… as the plain bearing calculation or the determination of the flank fracture risk, is an essential …”

doi.org/10.51202/9783181024225

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International Conference on Gears 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2355 2019

Results in this title

C. Brecher, C. Lopenhaus, F. Goergen Transfer of the tooth flank stress into an analogy test concept to provoke the damage pattern tooth flank fracture (TFF) S. 25-36

„… tooth flank fracture (TFF) Prof. Dr.-Ing. Christian Brecher, Dr.-Ing. Dipl. Wirt.-Ing. Christoph …” „… a concept for the investigation of the damage pattern tooth flank fracture (TFF) in an analogy test …” „… . An analogy test for the investigation of tooth flank fractures (TFF) does not exist at present …”

H.-J. Dennig, S. Monn, A. Vodermayer Thermoplastic high performance composite gears S. 1279-1290

„… fracture occurs outside the w ar chan el, wher the flank does not come into c ntact with the opposite …” „… fibres. Tooth fracture on the flank Crack formation due to Hertzian pressure and shear stresses at …” „… within a very short time. Tooth root fracture Too high bending stress at the tooth root: If the …”

B. Karpuschewski, T. Lierse, S. Schulze Inline-deep rolling – a new approach to increase tooth root load capacity S. 1787-1798

„… root area that varies in time during operation due to the load moving along the flank. Furthermore …” „… this area [1], [6]. By means of numerical simulations, experimental investigations and fracture …” „… the strength verification against tooth fracture. Fig. 1 illustrates a typical tooth root fracture as …”

C. M. Illenberger, T. Tobie, K. Stahl Flank load carrying capacity of oil-lubricated high performance plastic gears – Analysis of the pitting development in back-to-back tests S. 1379-1390

„… result, the plastic wheel is prevented from undesired flank fractures in the dedendum flank area caused …” „… meshing on the gear flank of the plastic wheel that will lead to undesired failure due to shear fracture …” „… Flank load carrying capacity of oil-lubricated high performance plastic gears Analysis of the …”

J. Pellkofer, M. Hein, K. Stahl, T. Reimann, M. Hombauer New calculation method of the micropitting load carrying capacity of bevel and hypoid gears S. 517-528

„… ] and flank fracture [4], may be favored on cylindrical gears [5]. Within investigations on bevel and …” „… of tooth flank fracture load capacity - Practical applicability and main influence parameters …” „… local safety factors and the damaged flank areas in the test. 1 Introduction Bevel and hypoid …”

M. Uhlig, C. Pastor Simulation tool-chain for plastic gear design S. 1453-1460

„… topographies for optimized design of slide bearings and tooth flanks. Two exemplary simulations were conducted …” „… root fracture or wear, and given internal requirements, e. g. noise and efficiency. This …” „… . Assuming tooth root fatigue fracture as the relevant failure mechanism of the gear, the tooth root is the …”

Titelei/Inhaltsverzeichnis S. I-XXVI

„… analogy test concept to provoke the damage pattern tooth flank fracture (TFF …” „… f Flank strength Influence of gear surface roughness on pitting and micropitting life …” „… tooth flank on the surface durability 15 A. Kubo …”

J. Tavčar, J. Kos, D. Zorko, J. Duhovnik A multi-criteria polymer gears design optimisation procedure S. 1473-1484

„… computer program OptiTooth 10.0 is presented, which provides calculations of the gear root and flank …” „… , durability, flank pressure, gear temperature, and wear need to be improved is presented in Fig. 5. The …” „… , and Power = 250 W, µ = 0.18 (PA66/POM material pair). Flank pressure is, in the case of …”

J.-A. Meis, F. Teklote, M. Borowski Simulation of the tooth root strength under consideration of material quality, finishing process and size effects S. 161-172

„… , Werkstofftechnik, 10. Jg., 1979 [6] “Flank fracture assessment under consideration of material quality …” „… methods, Fabian Teklote, Master-Thesis, 2019, internal document of Flender GmbH. [9] Flank fracture …” „… these data and performs the strength assessment to calculate the probability of tooth root fracture …”

F. Lubos, Z. Roth Bionic tooth root: fatigue testing and potential on gear units S. 47-56

„… mirrored tree trunk shape produces the second half of the gear flank when it comes to the gear root. As a …” „… gear root is connected to each of the two involute tooth flanks at the transition diameter dü. At the …” „… center of the tooth space, both flanks are connected by a circular function, while all transitions are …”

S. J. Ma, G. Y. Wu, G. Liu Study on the contact characteristics of threaded surfaces in a planetary roller screw mechanism S. 1155-1164

„… 0.46 Addendum of thread (mm) 0.27 0.27 0.27 Dedendum of thread (mm) 0.36 0.45 0.44 Flank angle …” „… planetary roller screw. 9th International Conference on Fracture & Strength of Solids, Jeju, Korea, (2013 …”

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Dritev – Drivetrain For Vehicles 2018

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2328 2018

Results in this title

M. Hein, T. Tobie, K. Stahl Holistic approach for fatigue life design of vehicle transmissions S. I-131-I-146

„… root breakage Pitting Tooth flank fracture Scuffing These damage mechanisms are described …” „… ]) depending on the material and heat treatment. Tooth flank fracture Tooth flank fracture is a severe …” „… fatigue failure on gears with crack initiation below the flank surface. Tooth flank fracture failures …”

doi.org/10.51202/9783181023280

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Drivetrain Solutions for Commercial Vehicles

VDI Wissensform GmbH (ed.)

Series: VDI-Berichte

Volume 2421 2023

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C. Braykoff CAM – Common Axle Module – The TRATON Common Axle Module for conventional and electric powertrain S. 67-74

„… . This type of damage was similar to a flank fracture, but the crack initiation was always from the …” „… reduction of the longitudinal sliding on the flank of the hypoid gears and thus to a reduction of the …” „… surface. The damage form was called "Flank breakage starting from a dark line". During the project, a …”

C. Schmidt Fault analysis of truck drivelines using big data methods S. 149-160

„… damage comparisons using a Miner-elementary approach. In the example, the tooth flank stress of the input …” „… about the occurrence time and type of damage (such as wear vs. fracture) is used to appropriately limit …”

doi.org/10.51202/9783181024218

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Technische Zuverlässigkeit 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2345 2019

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M. Hein, T. Tobie, K. Stahl Verkürzte Lebensdauertests von Zahnradgetrieben unter Lastkollektivbeanspruchung S. 209-222

„… .: Calculation of tooth flank fracture load capacity – Practical applicability and main influence parameters …” „… (2017). [8] Hein, M.; Tobie, T.; Stahl, K.: Parameter study on the calculated risk of tooth flank …” „… fracture of case hardened gears. Motion and Power Transmissions - MPT 2017, Kyoto. JSME, DOI:10.1299 …”

doi.org/10.51202/9783181023457

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Welle-Nabe-Verbindungen 2018

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2337 2018

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J. F. Springorum, R. Brandt Werkstoffmechanische Einflussfaktoren auf die Tragfähigkeit von Passverzahnungen auf Hohlwellen S. 145-154

„… fractures are in the root fillet of the splines and thus outside the contact area of the edgecentered …” „… deutlich, dass der Bruchausgang unterhalb des Kontaktbereichs zwischen den Flanken der Verbindungspartner …” „… , welches in Bild 6 dargestellt ist, wurde überprüft, wie sich die Reibung zwischen den Flanken der …”

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Bauingenieur

Browse Volumes: Bauingenieur

Bauingenieur Volume 94 (2019) Issue 04 ISSN Online: 0005-6650

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Ali Hussein, Blaž Hudobivnik, Peter Wriggers Berechnung von Risswachstum mittels der Methode der virtuellen Elemente/Modeling of Brittle Crack Propagation using the Virtual Element Method S. 147-154

„… formulations for linear and nonlinear material responses. In this paper the focus is on fracture mechanics …” „… . Die Flanken des Risses Gc wer- ∇ ∙ σ + f ̅ = 0 in Ω f Ali Hussein, M. Sc …” „… .: Virtual element formulation for phase-field modeling of ductile fracture. In: International Journal for …”

doi.org/10.37544/0005-6650-2019-04

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Konstruktion

Browse Volumes: Konstruktion

Konstruktion Volume 73 (2021) Issue 01-02 ISSN Online: 0720-5953

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Kevin Hölz, Philipp Tobias Dörner, Sven Matthiesen Analyse des Versagens mittels Bilderkennung für die Gestaltung von Holzschrauben/Analysis of Failure using Image Recognition for the Design of Wood Screws S. 64-69

„… der Holzfasern zwischen den Flanken der Schrauben. [15], [16] Eine Auswertung einzelner Risse wurde …” „… Schadensanalyse [11] Bodner, J.; Schlag, M. G.; Grüll, G.: Fracture Initiation and Progress in Wood Specimens …” „… , G.: Fracture Initiation and Progress in Wood Specimens Stressed in Tension. Part II. Compression …”

doi.org/10.37544/0720-5953-2021-01-02

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Gleit- und Wälzlagerungen 2021

VDI Wissensforum GmbH (ed.)

2021

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D.-O. Leimann Ermittlung der Einflussfaktoren für Schlupf, Hydrogen und Stromdurchgang in der Berechnung zur Abschätzung des Risikos auf frühzeitige Lagerschäden durch White Etching Cracks WEC S. 161-176

„… the calculation of Tooth Flank Fracture TFF [1] and is first published for rolling bearings in 2019 …” „… charge en cas de fracture du flanc de la dent, Bruxelles, 2019 [2] D. Leimann, Calculation of White …”

doi.org/10.51202/9783181023785

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PIAE EUROPE

VDI Wissensforum GmbH (ed.)

2020

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J. Horn, B. Schulze, R. Kolmorgen Highly integrative smart plastic shift fork S. 223-234

„… the cavity is completely filled, the ejectors on the flanks and end faces of the carbon-fiber insert …” „… fracture. Except in the case of overloads (misuse), load-related component changes do not occur suddenly …” „… but are linked to the interaction of various boundary conditions of fracture mechanics (geometry …”

doi.org/10.51202/9783181023693

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Welle-Nabe-Verbindungen 2016

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2287 2016

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M. Ziaei, R. Schreiter, P. Knorr, E. Leidich, F. Reiß Hypotrochoidische Konturen – Eine Alternative für formschlüssige Welle-Nabe- Verbindungen S. 177-188

„… ). Zusätzlich wird ein H-Profil mit sieben Mitnehmern und konkaven Flanken dem evolventischen Zahnprofil mit …” „… wurde dabei stufenweise, ausgehend von einem Profil mit anteilig flachen Flanken, erhöht (zunehmend …” „… Conference on New Trends in Fatigue and Fracture, Dubrovnik, 2016. [12] Leidich, E.; Schreiter, R.; Knorr …”

doi.org/10.51202/9783181022870

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Dritev – Drivetrain for Vehicles 2020

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2373 2020

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D. Vietze, M. Hein, K. Stahl Method for a cloud based remaining-service-life-prediction for vehicle-gearboxes based on big-data-analysis and machine learning S. I-403-I-416

„… Tooth Flank Fracture Load Capacity – Practical Applicability and Main Influence Parameters. American …” „… fracture mechanics [4] or nonlinear damage accumulation hypotheses [5]. But these methods are linked to a …”

doi.org/10.51202/9783181023730

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Plastics in Automotive Engineering PIAE EUROPE

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2343 2019

doi.org/10.51202/9783181023433

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Results (34)

International Conference on Gears 2022

International Conference on Gears 2017

International Conference on Gears 2023

International Conference on Gears 2019

Dritev – Drivetrain For Vehicles 2018

Drivetrain Solutions for Commercial Vehicles

Technische Zuverlässigkeit 2019

Welle-Nabe-Verbindungen 2018

Bauingenieur

Konstruktion

Gleit- und Wälzlagerungen 2021

PIAE EUROPE

Welle-Nabe-Verbindungen 2016

Dritev – Drivetrain for Vehicles 2020

Plastics in Automotive Engineering PIAE EUROPE