环板式针摆行星传动非线性动态啮合特性分析  

Nonlinear dynamic engaging characteristics analysis on ring-plate typed pin-cycloidal planetary drive

作　　者：单丽君[1] 何卫东[1] 关天民[1] 

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028

出　　处：《机械设计》2008年第3期46-48,共3页Journal of Machine Design

基　　金：国家自然科学基金资助项目(50575030)

摘　　要：根据环板式针摆行星传动的动态啮合特性,采用有限元分析软件ANSYS/LS-DYNA模块,建立了针摆传动刚柔组合模型,动态模拟了针轮与摆线轮的啮合过程,求解了啮合过程中瞬时应力、变形和动态啮合刚度。分析了啮合应力沿齿宽和齿高方向的变化规律及啮合刚度的非线性特性。分析结果说明,非线性啮合刚度是样机振动的一个主要动态激励。因此,新样机制做要提高啮合刚度,以减少振动。On the basis of dynamic engagement characteristics of ring-plate typed pin-cycloidal planetary drive and by adopting the finite element analytical software ANSYS/LS-DYNA module to establish the firm-flexible combination model of the pin-cycloidal drive. The engaging process of pin wheel with cycloidal wheel was dynamically simulated. The instantaneous stress, deformation and dynamical engagement rigidity in the course of engagement was solved. The nonlinear characteristics of variation rule and engagement rigidity for the engagement stress along the direction of tooth breadth and tooth height were analyzed. The result of analysis explained that the nonlinear engagement rigidity was a principal dynamic excitation of the prototype vibration. Therefore it is necessary to heighten the engagement rigidity for the manufacturing of new prototype so as to reduce the vibration.

关 键 词：环板式行星针摆传动 动态接触 非线性啮合特性 

分 类 号：TH132[机械工程—机械制造及自动化]