燕山大学学报2026，Vol.50Issue(3)：204-212,9.DOI:10.3969/j.issn.1007-791X.2026.03.002
含裂纹的人字齿轮行星系统均载分析
Load-sharing analysis of herringbone planetary gear system with cracks
摘要
Abstract
To investigate the influence of root cracks on the load-sharing characteristics of herringbone planetary gear system,a 23-degree-of-freedom bending-torsional-axial coupled dynamic model was established,considering the effects of crack length,mesh stiffness,and damping.The time-varying mesh stiffness(TVMS)of the cracked system was derived using the potential energy method,and the system's nonlinear dynamic equations were solved by the Runge-Kutta method to obtain the dynamic meshing force and load-sharing coefficient.The results indicate that the presence of gear cracks reduces the system's TVMS and induces obvious excitations in the load-sharing curve.As the crack propagates,the load-sharing coefficient first decreases and then increases,showing a gradual deterioration of the load-sharing performance.Under constant manufacturing errors,the load-sharing coefficient of both internal and external meshing pairs increases with crack severity,indicating degraded load-sharing capability.Conversely,when the crack size remains unchanged,increasing manufacturing errors also cause the load-sharing coefficient to rise,further confirming that the load-sharing performance deteriorates with larger errors.关键词
人字齿轮/行星轮系/弯扭轴/裂纹/均载特性Key words
herringbone gear/planetary gear/bending-torsional-axial/cracks/load-sharing characteristics分类
机械制造引用本文复制引用
张宗阳,董皓,毕越,罗永涛,张涛..含裂纹的人字齿轮行星系统均载分析[J].燕山大学学报,2026,50(3):204-212,9.基金项目
国家自然科学基金资助项目(52375062) （52375062）
陕西省教育厅科研计划资助项目(23JC038) （23JC038）
西安市科技计划资助项目(3GXFW0037) （3GXFW0037）
