机械科学与技术2025，Vol.44Issue(4)：561-572,12.DOI:10.13433/j.cnki.1003-8728.20230148
考虑中心距偏差的直齿轮啮合刚度及振动分析
Meshing Stiffness and Vibration Analysis of Spur Gear Considering Center Distance Deviation
摘要
Abstract
Considering the influence of center distance deviation,the meshing process of a single gear tooth was discretized into 20 meshing points,and the static meshing finite element model of spur gear pair at different meshing points was established to study the variation of gear meshing stiffness and transmission error with center distance deviation.Subsequently,a dynamic meshing finite element model of the spur gear pair was established,and the effects of parameters such as center distance deviation,rotational speed,and load torque on the vibration response of the gear pair system were analyzed by transient dynamics simulation.The research results show that as the center distance deviation increases,the spur gear mesh stiffness decreases,the static transmission error increases,and the mesh vibration becomes larger.However,there is a critical value for the effect of vibration.After the deviation reaches the critical value,the meshing vibration of the gear pair will be maintained at a relatively constant state with the increase of the center distance deviation.The vibration of the gear subsystem increases with the increase of speed.When it is at resonance speed,the gears are seriously disengaged,the main excitation frequency in the gear system is no longer related to the meshing frequency in integer multiples,the vibration of the gears shows randomness,the meshing shock increases exponentially,and the meshing stability decreases.The meshing vibration of the gear pair increases nonlinearly with the increase of torque,when the torque is too high,it will cause the joint line shock and abnormal vibration of the spokes,resulting in the deterioration of the gear meshing performance.关键词
中心距偏差/啮合刚度/传递误差/振动特性Key words
center distance deviation/meshing stiffness/transmission error/vibration characteristics分类
机械制造引用本文复制引用
黄一伦,陈旭,胡玉梅,何造..考虑中心距偏差的直齿轮啮合刚度及振动分析[J].机械科学与技术,2025,44(4):561-572,12.基金项目
国家科技重大专项(J2019-IV-0001-0068) （J2019-IV-0001-0068）
