Zusammenfassung
Foreword The International Conference on Gears in Garching near Munich, Germany, is an established platform for researchers on and manufacturers of gears and transmission systems. At the 10th issue of the conference in September of 2023, gear experts discussed the latest developments and research results from the powertrain industry and academia. Given the increasing challenges of climate change and its impacts, acting in compliance with the UN Sustainable Development Goals is mandatory for all engineers today. Gear engineers must consider these objectives in their research and development activities and provide solutions that meet the technical requirements and contribute to achieving the UN goals. Greenhouse gas (GHG) emission is a primary driver for climate change. Reducing GHG emissions should be an urgent action for the combat against climate change. Therefore, the research on efficiency is assigned a key role. Several contributions in this report discuss the possibilities for further improvement in efficiency from different points of view, like gear design or lubrication. Other subjects of the conferences are Responsible Consumption and Production. H...
Schlagworte
verlustarme Getriebe Risswachstum Stirnrad Planeten Getriebe Lebensdauer Vorhersage Maschenweite Synchronisierung Reibungskoeffizient Lastverteilung Schmierung Ölfluss Simulation schlaues Getriebe Re-X low-loss-gears tooth root load fatigue strenght spur gear crack groth root life prediction model planetary gear mesh phasing friction coefficient ISO 6336 E-Axle applications load distribution NVH multi stage gear trains lubrication planetary gearbox meshing contact oil flow simulation CFD smart gear- Kapitel Ausklappen | EinklappenSeiten
- 1–2 Foreword 1–2
- 67–108 Damage detection 67–108
- 109–156 Load capacity 109–156
- 157–190 Planetary gears: NVH 157–190
- 301–340 Load capacity 301–340
- 341–382 NVH: Impacts 341–382
- 383–428 Asymmetric gear geometry 383–428
- 485–536 CFD: Applications 485–536
- 537–582 Planetary gears: Design 537–582
- 583–632 NVH: Analysis 583–632
- 633–674 Smart gears 633–674
- 675–714 NVH 675–714
- 715–752 Lubrication 715–752
- 753–784 Efficiency and friction 753–784
- 785–828 Efficiency: Gearbox 785–828
- 829–880 Bevel and hypoid gears 829–880
- 927–974 Design geometry 927–974
- 975–1016 Efficiency & friction 975–1016
- 1039–1286 Poster Exhibition 1039–1286
- 1287–1300 Sustainability 1287–1300
- 1301–1350 Tooth root strength 1301–1350
- 1351–1388 Fibre reinforcement 1351–1388
- 1389–1434 NVH 1389–1434
- 1469–1514 Gear geometry and calculation 1469–1514
- 1547–1580 Tribology and thermal behavior 1547–1580
- 1581–1858 Gear Production 2023 1581–1858
- 1581–1606 Innovations in gear production 1581–1606
- 1607–1640 Software in gear production 1607–1640
- 1641–1698 Additive manufacturing 1641–1698
- 1699–1748 Materials in gear production 1699–1748
- 1787–1828 Gear metrology 1787–1828
- 1803–1820 Large gear metrology at PTB 1803–1820
- 1859–1876 Manufacturing processes 1859–1876
37 Treffer gefunden
- „... , 2023 | 15:31:04 | 148 mm x 210 mm Planetary gears: NVHVibration reduction of planetary gear drive using ...” „... Industries (CETIM), Senlis, FranceForward Performance-driven Design of Gear Parameters 211S. Chen, C. Liu, D ...” „... gear drives for better transmission performances 537S.-J. Tsai, Q.-Y. Zhuang, L.-C. Chang, National ...”
- „... design of the drives, especially the electric motors, this leads to a reduced transmissible torque for ...” „... torque corresponds to the nominal torque of the reference drive and is given by the electric motor. The ...” „... permanent torque of the drive is given by the electric motor. The rated torque of the drive is not reduced ...”
- „... 2.1 Permanent magnet synchronous motor modelThe electric helicopter is driven by a permanent magnet ...” „... Electromechanical Coupling Modeling and Torsional Vibration Analysis of Helicopter Electric ...” „... , Chongqing University, Chongqing, China AbstractThe electric powered helicopter has the benefits of energy ...”
- „... and Planet-Ring meshes and maximizing the overall NVH performance of electric drive units by virtual ...” „... validated in a bench test. 3. Application case: Electric drive unit for passenger car 3.1. Application case ...” „... The electric drive unit is a two-stage reduction transmission : a planetary helical gear set and a ...”
- „... Kaiserslautern-Landau Kaiserslautern AbstractIn electric drive trains, an undesirable current flow can occur over its ...” „... hydrogen drives by means of a fuel cell, electric and hybrid drive systems play a decisive role in the ...” „... variability of electric motors in various drive trains. As a consequence of using this type of frequency ...”
- „... Improvement of the transmission efficiency in electric vehicles by using double staggered helical ...” „... in electric vehicles. The staggered helical gears are designed with short addendum and dedendum as ...” „... Electric vehicles require transmissions with high efficiency, low levels of noise and vibration and high ...”
- „... from the driver, an electric motor, to the slower end-interface motion. Two different solutions ...” „... Developing CAE solutions for Robotics gears: Cycloidal and Strain Wave Gear DrivesLeveraging more ...” „... commonly used in the robotics industry for high ratios are Cycloidal and Strain Wave Gearing drives. The ...”
- „... A concept for comparison of new and aged lubricants in transmissions of electric vehicles and a ...” „... , Lukas Steidle, Markus Kley, Institute of Drive Technology Aalen IAA, Aalen University, Didem Cansu Güney ...” „... Abstract Currently, the demand for electric vehicles is growing. In order to make them even more ...”
- „... set up as an inline concept (2 motor concept). An electric drive motor controls the transmis-sion ...” „... designed as electrical load unit consisting of two electric motors. The tooth flanks of the test gears are ...” „... . Introduction Gear drives are important machine components for adjusting speed and torque in many mobile and ...”
- „... literature and provides an analysis on an example countershaft electric vehicle drive unit to explore what ...” „... which is driven by strain rate dependent plasticity behaviors. This study combs through current ...” „... 55material where ferritic microstructures will be located. Pitting failures are driven by surface ...”
- „... Gearbox efficiency of eDrives: correlation between measurement and calculation of load-dependent ...” „... , these approaches are also used for the calculation of the load-dependent torque losses of eDrives ...” „... the eDrive gearbox are determined at a motor-generator test rig. The necessary lubricant factors for ...”
- „... comes to e-drive – powered vehicles, where it is not possible anymore to rely on the masking effect ...” „... experimental campaign conducted on FH and FM gear pairs. The pair has been developed for an electric industrial ...” „... , the test rig consists of an AC electric motor and two eddy current brakes, which can be arranged in ...”
- „... detailed analysis of the relevant eigenvalues and eigenmodes.Introduction In recent years, electric drives ...” „... high-torque e-machines are larger and more expensive, and therefore lean and compact high-speed drives are ...” „... the other hand, this also offers the opportunity to influence the acoustics of the drive through the ...”
- „... electric drives?”.NVH (noise, vibration, and harshness) performance is seen as a key differentiator since ...” „... of the ICE, which otherwise would mask any undesirable noise sources, the electric drivetrain’s ...”
- „... represent the test specimens and are driven independently of each other by means of an electric motor. Thus ...” „... gear drives are a type of gearbox that are suitable for certain applications due to the possibility of ...” „... those used in worm gear drives. The analogy by means of two disks was already used by Weber and Niemann ...”
- „... for sustainable air travel might be satisfied by full-electric, hybrid-electric or hydrogen ...” „... challenges. For engine manufactures, it ranges from full-electric and hybrid-electric flights for urban as ...” „... hybrid-electric concepts are introduced, eVTOL are seen to move even into longer-ranging intercity markets. In ...”
- „... value to the design of in-wheel drive systems that are used by electric vehicles where space is limited ...” „... systems seen in electric vehicle and aviation industries. In this experimental investigation, a mechanical ...” „... a slave gearbox positioned close to the drive motor; and all test gears were spur. In addition ...”
- „... Lösung diskutiert.Abstract The need to develop compact electric drivelines imposes special requirements ...” „... , the oil distribution of a reducer gearbox of an electric axle is investigated by means of a novel CFD ...” „... , which must be managed and optimized. In addition, the efficiency of the drive system plays a major role ...”
- „... have been widely used in electric vehicles, wind power, and aircraft engines. However, in the process ...” „... reduced-order FEMDriving torque(Tdriving)Driven torque (Tdriven)Angular displacementangular velocityangular ...” „... . VDI-Berichte Nr. 2422, 2023 1281Drive motor Load motorSpeed‐torque sensorsVibration acceleration ...”
- „... influences on WEC-risk are electric current, the combination mixed friction and high sliding speed, Hertzian ...” „... test was driven further with full load but failed with WEC induced pitting and breakage after a very ...” „... friction energy. Together with this measure, the electric current passage was reduced from 0,4A and 4V to ...”
- „... the electric motor brings with it a set of new challenging requirements for the transmission system ...” „... e-mobility and the continuous drive for higher efficiency in these systems, there arises a need for advanced ...” „... superfinishing, trends in electric mobility [11]. The deposition of the Nb:MoS2 coating was carried out using ...”
- „... Munich, GermanyAbstractAs technology progresses, the demands placed on drive trains are continuously ...” „... when electric motors are used for propulsion and thus masking by an internal combustion engine or a ...” „... industry, the marine industry is also experiencing an increase in the application of electric motors. As a ...”
- „... have been working out policies for electrification, mainly focusing on electric vehicles (hereafter BEV ...” „... - production of powertrain component and drive unit. This paper introduces some of the considerations regarding ...” „... controlPlanetary gear arrangementTraction driveHigh rotation support Tooth Damage PreventionTribologyTooth surface ...”
- „... electric circuit sensors on the tooth surface using the sputtering method and measuring the resistance ...” „... electric circuits on machine elements and to monitor the state of the elements by observing changes in ...” „... arbitrarily shaped electric circuits on the surface of gears by sintering conductive ink [13]. Thanks to this ...”
- „... reinforced materials are used for gears that are used under high load conditions (e.g. gear for electric ...” „... width Pressure angleMetal gear(Driving) 0.8 17 8.00 20Plastic gear(Driven) 0.8 22 5.99 20The fatigue ...” „... Temperature : 120degCThe gear fatigue test apparatus has the configuration shown in FIG. 4. A drive motor is ...”
- „... . Introduction Recently, the trend of EV shift in the automobile industry has been increasing. The motor drive ...” „... utilization of electric power in the low-high speed range. Further, gearboxes are primarily used as speed ...” „... barreled (B) gears). Table 1: Dimensions of test gears Parameter Drive (DV) Driven (DVN) Number of teeth 25 ...”
- „... generate low load-dependent gear power losses, they are particularly suitable for modern drive systems. As ...” „... the root fillet of small-modulus gears in modern drive systems limits the media size for shot peening ...” „... properties.Introduction New mobility solutions require increasingly powerful drive units with favorable vibroacoustic ...”
- „... , Reichert-Friction wear scale, Four-Ball-Fig. 1: Scuffing marks at the drive flank of a hypoid gear [4] VDI-Berichte ...” „... mounted on the torsional shafts. The electric motor only injects the power losses induced by the ...” „... test rig is used as test device. The coast flank is the active tooth flank and the wheel drives the ...”
- „... is one of the most significant factor for every product in drive technology. Therefore, the ...” „... specific questions in drive technology. VDI-Berichte Nr. 2422, 2023 4671. Introduction Quality and ...” „... in the automotive industry, e.g. in electric cars, but also as industrial gear units in various ...”
- „... need for lightweight powertrains in electric vehicles is addressed by the use of high-speed electric ...” „... while maintaining the same output power. However, as the operating speeds of battery electric vehicles ...” „... Research Association for Drive Technology e.V. (FVA); supported partly by the FVA and through the German ...”
- „... a closed power loop between a test and a slave gearbox. The power loop is driven by an electric ...” „... and sustainable drive systems with a high degree of material utilization, it is necessary to quantify ...”
- „... increase in sales for electric vehicles with their rise in popularity. The changes in the industry have ...” „... , is a key driver for technical solutions. Therefore, planetary gear sets have advantage of power ...”
- „... concentration points, and the presence of pores can further drive crack nucleation and propagation. Powder ...” „... densification. VDI-Berichte Nr. 2422, 2023 1695References [1] Du, J. et al.: Prospects for Chinese electric ...” „... eDrive applications, Düsseldorf: VDI Verlag, 2017, p. 119–131. VDI-Berichte Nr. 2422, 20231696[14] Frech ...”
- „... difference between the tangential velocity of the driving (vdriving,t) and driven (vdriven,t) gear ...” „... Association for Drive Technology e.V. (FVA) supported by the German Federation of Industrial Research ...” „... cycloid helical gear drive. Journal of Mechanical Science and Technology 31 (2017) 9, pp. 4329–4336 [10 ...”
- „... challenges in drive technology. Advantages include in particular the short axial length in conjunction with a ...” „... Optimization of Gear Mesh Efficiency in Stepped Planetary Gear Stages for Electric Vehicles. In: AGMA, American ...” „... the Operational Behavior of a High-Speed Planetary Gear Stage for Electric Heavy-Duty Trucks in ...”
- „... Beveloid gears satisfy the relevant need in drive train technology to connect two shafts that are ...” „... friction losses within the system during operation, an electric motor is employed, ensuring a constant ...”
- „... ]), hypoid gears (Peng et al. [70, 71]), and orthogonal face gear drive (Dai et al. [72]) were simulated with ...” „... CFD,” in Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric ...” „... optimization of the oil jet lubrication performance for orthogonal face gear drive: Modelling, simulation and ...”