Volume 10: 2019 International Power Transmission and Gearing Conference最新文献_第2页

Theoretical Validation of an Analytical Design Method for Beveloid Gears With Non-Parallel Non-Intersecting Axes 非平行非相交锥面齿轮解析设计方法的理论验证

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97246

D. Marino, Matthias E. Bachmann, H. Binz

{"title":"Theoretical Validation of an Analytical Design Method for Beveloid Gears With Non-Parallel Non-Intersecting Axes","authors":"D. Marino, Matthias E. Bachmann, H. Binz","doi":"10.1115/detc2019-97246","DOIUrl":"https://doi.org/10.1115/detc2019-97246","url":null,"abstract":"\u0000 An analytical calculation method was developed to determine the main gearing data for beveloid gears with non-parallel non-intersecting axes. To validate the method and identify its limits, a parameter study was to be conducted. A two-stage fractional factorial experimental design was therefore devised to deliberately vary the gearing parameters. For each gearing, an unloaded contact simulation was carried out using the position of the contact pattern, the transmission error and the predefined gear backlash as quality characteristics. The results of the simulation were subsequently classified in three evaluation categories.\u0000 Due to the generalizability of the method proposed, it can also be used for the design of other involute gearings. A modification of the equations revealed its applicability for spur gear pairs with no shaft angle and for crossed helical gear pairs with shaft angles up to 90°.\u0000 The results for the beveloid gear pairs investigated using a wide range of parameters as well as those for the cylindrical and crossed helical gear pairs proved the validity of the method. In the case of outliers in the evaluation, the causes were identified and corrective actions were presented.","PeriodicalId":159554,"journal":{"name":"Volume 10: 2019 International Power Transmission and Gearing Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132393052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Tooth Geometry Design and Two-Dimensional Finite Element Analysis for a Strain Wave Gear With Double-Circular-Arc Profile 双圆弧型应变波齿轮的齿形设计及二维有限元分析

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97594

Yi-Cheng Chen, Yun-Hao Cheng, J. Tseng, K. Hsieh

引用次数: 3

A Load Distribution Model for Double-Planet Planetary Gear Sets 双行星行星齿轮组的载荷分配模型

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98512

Yong Hu, David Talbot, A. Kahraman

引用次数: 2

Exhaustive Synthesis and Analysis of Automotive 2-Stage Planetary Transmission Designs 汽车两级行星传动设计的详尽综合与分析

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97753

H. Karhula, M. Nicolai, W. Desmet

{"title":"Exhaustive Synthesis and Analysis of Automotive 2-Stage Planetary Transmission Designs","authors":"H. Karhula, M. Nicolai, W. Desmet","doi":"10.1115/detc2019-97753","DOIUrl":"https://doi.org/10.1115/detc2019-97753","url":null,"abstract":"\u0000 Most modern automatic automotive transmissions are complex mechanical systems composed of multiple planetary gearsets that are connected by shafts, clutches and brakes. Creating a design that supports the desired transmission ratios while requiring a minimal amount of components is a challenging task that is commonly tackled by an engineer with experience and intuition.\u0000 This paper introduces an approach for the exhaustive synthesis of automotive transmissions composed of two planetary gearsets, two clutches and two brakes that can be deployed in automotive drivetrains. By modeling the components of an automotive transmission based on their possible mechanical connections and additional user-defined specifications a constraint satisfaction problem is derived. An iterative solving process exhaustively generates all possible transmission design with the specified set of components. Further the generated designs are filtered and analyzed such that the designer is served only with unique, valid and useful transmission designs. Finally a set of generated, novel 4-speed transmission designs is presented.","PeriodicalId":159554,"journal":{"name":"Volume 10: 2019 International Power Transmission and Gearing Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125257582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Influence of the Case Properties After Nitriding on the Load Carrying Capacity of Highly Loaded Gears 氮化后的壳体特性对高载荷齿轮承载能力的影响

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97405

André Sitzmann, T. Tobie, K. Stahl, S. Schurer

{"title":"Influence of the Case Properties After Nitriding on the Load Carrying Capacity of Highly Loaded Gears","authors":"André Sitzmann, T. Tobie, K. Stahl, S. Schurer","doi":"10.1115/detc2019-97405","DOIUrl":"https://doi.org/10.1115/detc2019-97405","url":null,"abstract":"\u0000 The load carrying capacity of highly loaded gears can be increased by thermochemical surface treatments such as nitriding or case hardening. In contrast to case hardening, the nitriding treatment is carried out at lower process temperatures and therefore creates lower distortion. As a result, grinding after nitriding is usually not necessary. Nitrided gears are ordinarily characterized by a thin, high-hardness, a few micrometers thick compound layer of iron and alloy element nitrides directly on the surface and a subsequent diffusion layer reaching more deeply into the material. Nitriding, therefore, provides an alternative to case hardening for distortion-sensitive components and offers potential for cost savings in the production of highly loaded gears.\u0000 This publication will focus on the influence of nitriding on the load carrying capacity of highly loaded gears. In addition, this paper summarizes the current state of knowledge of nitrided gears and gives an insight into current research in the field of nitrided gears. In particular, the influence of the compound layer on the tooth root bending strength and the flank load carrying capacity achieved within the research project FVA 386 II is discussed.","PeriodicalId":159554,"journal":{"name":"Volume 10: 2019 International Power Transmission and Gearing Conference","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126238014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A Methodology to Experimentally Investigate the Impact of Wobble Errors on the Contact Pattern and Static Transmission Error of Helical Gear Pairs 摆振误差对斜齿轮副接触模式和静传动误差影响的实验研究方法

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98391

M. Benatar, M. Handschuh, A. Kahraman, David Talbot

{"title":"A Methodology to Experimentally Investigate the Impact of Wobble Errors on the Contact Pattern and Static Transmission Error of Helical Gear Pairs","authors":"M. Benatar, M. Handschuh, A. Kahraman, David Talbot","doi":"10.1115/detc2019-98391","DOIUrl":"https://doi.org/10.1115/detc2019-98391","url":null,"abstract":"\u0000 For a gear pair, both the contact pattern and the transmission error (TE) significantly impact durability and fatigue life. Design and manufacturing processes are often aimed at improving the contact pattern and reducing the overall TE. Other errors, such as runout and wobble, are often induced during the installation of power transmission systems, and they can alter the contact pattern and TE of an otherwise well-designed gear pair.\u0000 This study provides a methodology to experimentally investigate the impact of wobble errors on the contact pattern and static transmission error (STE) of helical gears. It first provides a description of the modifications to an existing test machine. Next, it describes the gear specifications, preliminary testing matrix, data acquisition and processing procedure, as well as the experimental results obtained with regards to both the contact pattern and STE.\u0000 The following are observed while describing the experimental results. For a test with no wobble and no runout, the contact pattern remains the same at every rotational position. However, by introducing even a small amount of wobble, the contact will shift from one side of the face width of the gear to the opposite side of the face width of the gear within one revolution. Introduction of wobble may increase the STE and sideband activity around gear mesh harmonics, especially as torque increases. Yet the modest increases in STE and sideband activity seen with the introduction of wobble are not enough to make definitive conclusions.\u0000 The feasibility of the modified test setup has been demonstrated, and preliminary results have been presented. However, additional data collection should be completed in order to study the impact of runout and wobble on both spur and helical gear pairs with various microgeometry modifications and manufacturing errors.","PeriodicalId":159554,"journal":{"name":"Volume 10: 2019 International Power Transmission and Gearing Conference","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123248976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Lubrication Model of Elliptical Point Contact for Spiral Bevel Gears With Asymmetric Varying Velocity 非对称变速螺旋锥齿轮椭圆点接触润滑模型

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-98142

Srikumar C. Gopalakrishnan, T. Lim, Yawen Wang

引用次数: 0

Design of an Electric Motor Transmission System Without Friction Synchronization 无摩擦同步电动机传动系统的设计

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97648

Abdulmohsen Alowayed, D. Fernandes, Eric Jeunehomme, Siyang Liu, Zhisheng Wang, I.-Min Yang, Daniel Dorsch, A. Winter

引用次数: 2

Response Sensitivity in a Nonlinear Planetary Gear Set 非线性行星齿轮组的响应灵敏度

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97366

Zhaobin Zhan, Hui Liu, B. Feeny, C. Xiang, Han Lijin

引用次数: 0

Research on Prediction Method of Transmission Accuracy of Harmonic Drive 谐波传动传动精度预测方法研究

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI: 10.1115/detc2019-97214

Hu Qiushi, Zhifeng Liu, L. Cai, Congbin Yang, Tao Zhang, Wang Guang

{"title":"Research on Prediction Method of Transmission Accuracy of Harmonic Drive","authors":"Hu Qiushi, Zhifeng Liu, L. Cai, Congbin Yang, Tao Zhang, Wang Guang","doi":"10.1115/detc2019-97214","DOIUrl":"https://doi.org/10.1115/detc2019-97214","url":null,"abstract":"\u0000 Harmonic drive is an indispensable device for robotic joint, and transmission accuracy of harmonic drive is one of its most important performance indexes. Due to the unsystematic research on the accuracy of harmonic drive, the accuracy consistency of harmonic drive is poor, and the prediction accuracy is seriously insufficient. This study focuses on modeling of transmission error system and prediction of transmission accuracy. Through tracing analysis of transmission error of harmonic drive, a transmission error model including manufacturing, assembly and tooth profile error is established. Based on Rayleigh distribution of error sources and considering multi-tooth meshing effect of harmonic drive, the transmission accuracy prediction model is built. Tooth profile error is measured by gear measuring center, dimension error and geometric tolerance are gauged by coordinate measuring machine. The transmission accuracy of three types harmonic drive (SHG14, SHG20 and SHG25) is measured by harmonic transmission error test bench under rated conditions. The comparison results show that the difference between the predicted and experimental values is less than 15%, which proves the validity of the accuracy prediction model. Prediction method play a crucial role for accuracy control of harmonic drive system.","PeriodicalId":159554,"journal":{"name":"Volume 10: 2019 International Power Transmission and Gearing Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116902357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3