摘要
在考虑谐波齿轮柔性的基础上,研究了谐波齿轮传动对间隙机构动力学特性的影响。首先,利用非线性弹簧阻尼模型建立了谐波齿轮传动的含间隙机构的接触碰撞动力学模型。然后,对含间隙曲柄滑块机构进行仿真分析,结果表明谐波齿轮传动和机械部件柔性对间隙碰撞都有缓冲效果,只是机械部件刚度较大时,部件柔性的缓冲效果不明显,而降低机械部件刚度又将导致机械部件在运动过程中产生大变形,影响其机械性能。为谐波齿轮传动在含间隙机构中的应用,提供了理论依据。
Here,the effects of harmonic gear transmission on dynamic characteristics of a mechanism with clearances,considering flexibility of harmonic gear were investigated. Firstly,the contact and impact dynamic model of a mechanism with clearances and harmonic gear transmission was established by using the nonlinear spring-damping model.Then,a slider-crank mechanism with clearances was simulated. The result showed that harmonic gear transmission and flexibility of mechanical parts have a cushioning effect on clearance impact; the cushioning effect is not obvious when the stiffness of mechanical parts is higher; while reducing stiffness of mechanical parts leads to larger deformation influencing the mechanical performances of the mechanism. The study results provided a theoretical foundation for the use of harmonic gear transmission in mechanisms with clearances.
出处
《振动与冲击》
EI
CSCD
北大核心
2014年第23期160-164,183,共6页
Journal of Vibration and Shock
基金
江苏高校优势学科建设工程资助项目
关键词
谐波齿轮传动
间隙
磨损
曲柄滑块机构
harmonic gear transmission
clearance
wear
slider-crank mechanism
