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VDI Wissensforum GmbH - Gleit- und Wälzlagerungen 2023

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VDI Wissensforum GmbH (ed.)

Gleit- und Wälzlagerungen 2023

Series: VDI-Berichte

Volume 2415 2023

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

„… application of an axial load. Compared to the full shaft, creep occurs at lower loads and with tighter fits …” „… , 2013, San Fransisco, USA [6] Correlation of Planetary Bearing Outer Ring Creep and Gear Load …” „… : creep by strain and creep by runout. Creep by strain, also called travelling-wave type or roller-induced …”

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

„… e-drivetrain bearings are the loads while majority of loads are radial loads, and some loads are axial loads …” „… . Besides the loads and temperatures, conformity with several types of oil and grease and a dimensional …” „… requirements such as voltages, loads and considering BVR we can suggest a suitable minimum thickness of …”

doi.org/10.51202/9783181024157

VDI Wissensforum GmbH - International Conference on Gears 2019

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2019

Series: VDI-Berichte

Volume 2355 2019

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R. Ratnagiri, M. Kato, H. Kuchelka Advances in polyacetal materials for gears S. 1357-1366

„… identified as secondary creep. Depending on the load and temperature, part failure occurs either by rupture …” „… initiation/propagation, cyclic plasticity, creep and shifts in the load sharing of plastic gears through their lifetime …” „… fatigue and creep and present results on the effect of loading frequency and stress induced self-heating …”

X. Du, B. Chen, X. Shan Robust force control of series elastic actuator using disturbance observer S. 1111-1122

„… ball-screw mechanisms have large speed reductions, high efficiency, high tolerance to impact loads and not …” „… by the high-stiffness planar springs, which is placed between the harmonic derive and the load. The …” „… amount under load and increase actuator’s transparency. However, the SEAs contain low-stiffness springs …”

K. Humm, M.-S. Wirth, A. Linnemann, T. Schalk Determination of fatigue strength of plastic gears under consideration of environmental influences S. 1291-1298

„… Schalk, ZF Friedrichshafen AG Abstract In addition to the torque and the number of load cycles …” „… ) load o Load velocity o Load duration (Creep) Environment o Temperature o Humidity o Aging …” „… conditions, the influences of load speed and load duration is reasoned by the viscoelastic behavior of …”

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

„… selection and suggest a calculation procedure for the load-carrying capacity. However, calculation …” „… creep and viscoelasticity. Moreover, there is little information available to predict the …” „… system requirements, such as the load profile of brake maneuvers, service life and environmental …”

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

„… temperature range. To increase the load-bearing capacity, reinforcing fibres such as glass and carbon fibres …” „… approximately 106 load cycles, since the wear was limited to the run-in amount and no failure was to be …” „… of dry-running operation. The main disadvantages are the low load capacity and the limited …”

R. Weidig, H. J. Weimar Powertrain NVH improvement with high-performance polymer gears S. 1421-1430

„… 150°C, high loads, longer lifetime requirements (up to 8.000 hours) and aggressive engine or low …” „… and fluids respectively potential creep, polymer gears can offer many cost, design, processing and …” „… rigs designed to test polymer gears; with constant load and temperature and component level testing …”

J. Cathelin Material data for advanced plastic gear simulation S. 1335-1344

„… are wear, fatigue, and plastic flow due to material creep or elevated temperature exposure. Fig. 1 …” „… ]. Their common points involve the estimation of gear temperature under load and the tooth root load …” „… methodology [6], and the fatigue tooth root load carrying capacity according to VDI2736. Teeth bending and …”

B. van Wissen, M. Kanters, F. Mitsuzuka, K. Iwanaga, Ir. A. Hasanovic Predicting wear for high performance plastic gears S. 1323-1334

„… ∗ (4) Where P is the load per unit length and R* and E* are the equivalent radius and modulus of the …” „… environmental temperature and the increase is dependent of load level. Gears: wear factors in applications …” „… °C. c) Apparent wear factor along the tooth flank of the gears obtained for a load of 0.2 Nm and …”

doi.org/10.51202/9783181023556

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Bausubstanz

Browse Volumes: Bausubstanz

Bausubstanz Volume 3 (2012) Issue 2 ISSN Online: 2190-4278

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Els Verstrynge, Luc Schueremans, Dionys Van Gemert Long-term behaviour of monumental masonry constructions: Assessment methodology and cased studies S. 58-63

„… been made in the base of the load bearing wall, creep deformations and large cracks had occurred over …” „… , damage increase during the secondary creep phase can accu-mulate to an unstable situation and a tertiary …” „… relative stress level from which creep deformations can lead to unstable damage accumu-lation and failure …”

doi.org/10.51202/2190-4278-2012-2

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

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A. K. Shojaei, P. Volgers, M. Cassata Advanced modeling and experimental techniques for fatigue life prediction of plastic gears S. 1575-1582

„… , creep and shifts in the load sharing of plastic gears through their lifetime. This paper may aim design …” „… fatigue damage, cyclic plasticity, creep, and viscoelastic responses decisively affect the load sharing …” „… simulation of plastic gears’ lifetime, durability, and load sharing. The methodology is verified through …”

A. K. Shojaei, P. Volgers An improved lifetime prediction technique for plastic gears through finite element analysis and continuum damage mechanics S. 1109-1112

„… provides an effective tool to incorporate the cyclic plastic and creep deformation mechanisms. Another …” „… full coupling between elastic, plastic, creep, thermal softening, and fatigue damage phenomena …” „… , and creep deformation mechanisms during their lifetime. On the other hand, the cyclic microcrack …”

J. Cathelin, R. Janssen Material data for advanced plastic gear simulation S. 1553-1564

„… , fatigue, and plastic flow due to material creep or elevated temperature exposure. Figure 1 illustrates …” „… involve the estimation of gear temperature under load and the tooth root load carrying capacity, based on …” „… on the static tooth root load carrying capacity according to the KISSsoft methodology [6], and the …”

R. Weidig Adoption of polymer gears – Challenges and solutions S. 1565-1574

„… extreme environment with temperatures up to 150°C, high loads, longer lifetime requirements and …” „… key requirements While metal gears handle loads better than comparably sized polymer gears and …” „… have less dimensional and property variations with temperature and potential creep, polymer gears …”

M. McCormick, J. Michaud Isotropic superfinishing of high hardness steels – How using a custom REM ISF® process as a quality control, defect remediation, and isotropic superfinishing procedure can increase the performance of... S. 163-172

„… (micropitting, macropitting, abrasive wear, and the like), as well as impact or shock load resistance …” „… as an inferior surface relative to contact fatigue, scuffing, and load carrying capacity. The …” „… load carrying capacity and loss of lubricant performance, and there are many strong arguments that C64 …”

E. Maier, A. Ziegltrum, T. Lohner, K. Stahl Characterization of TEHL contacts of thermoplastic gears S. 1483-1496

„… , T., and Stahl, K.: TEHL simulation on the influence of lubricants on load-dependent gear losses …” „… thermal and mechanical properties limit its applications to low-load motion transmissions. Research has …” „… . Thus the transmission of higher loads and speeds is enabled [2]. As failures like pitting and chipping …”

doi.org/10.51202/9783181022948

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2022

Series: VDI-Berichte

Volume 2389 2022

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

„… , creep and wear separately. Further research into load spectrums and operating modes to separate these …” „… method for in situ deformation and wear measurement of polymer gears under operating load is presented …” „… ” torque and a low or “measuring” torque after a set amount of load cycles. During the “high” cycles, the …”

A. Gebhard, W. Kassem, M. Oehler Cylinder-on-ring model wear tests as an input data source for the simulation of friction and wear of plastic gears S. 1133-1148

„… on material properties, the high level of viscoelasticity and creep as well as the limited …” „… loads the width of a single contact line element or replacement roll pair and the boundary friction …” „… combination of loading, sliding speed and temperature. During the tests, friction was continuously monitored …”

doi.org/10.51202/9783181023891

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