Time-Varying Mesh Stiffness Calculation and Dynamic Modeling of Spiral Bevel Gear with Spalling Defects

作     者：Keyuan Li Baijie Qiao Heng Fang Xiuyue Yang Xuefeng Chen 

作者机构：School of Mechanical EngineeringXi’an Jiaotong UniversityXi’anPR China National Key Lab of Aerospace Power System and Plasma TechnologyXi’an Jiaotong UniversityXi’anPR China 

出 版 物：《Journal of Dynamics, Monitoring and Diagnostics》 (动力学、监测与诊断学报（英文）)

年 卷 期：2024年第3卷第2期

页      面：143-155页

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：supported by the National Natural Science Foundation of China(grant no.52075414) 

主　　题：dynamic modeling slice method spalling spiral bevel gear time-varying mesh stiffness(TVMS) 

摘      要：Time-varying mesh stiffness(TVMS)is a vital internal excitation source for the spiral bevel gear(SBG)transmission *** defect often causes decrease in gear mesh stiffness and changes the dynamic characteristics of the gear system,which further increases noise and *** paper aims to calculate the TVMS and establish dynamic model of SBG with spalling *** this study,a novel analytical model based on slice method is proposed to calculate the TVMS of SBG considering spalling ***,the influence of spalling defect on the TVMS is studied through a numerical simulation,and the proposed analytical model is verified by a finite element ***,an 8-degrees-of-freedom dynamic model is established for SBG transmission *** the spalling defect into TVMS,the dynamic responses of spalled SBG are *** numerical results indicate that spalling defect would cause periodic impact in time ***,an experiment is designed to verify the proposed dynamic *** experimental results show that the spalling defect makes the response characterized by periodic impact with the rotating frequency of spalled pinion.