食品与机械2017，Vol.33Issue(9)：84-89,93,7.DOI:10.13652/j.issn.1003-5788.2017.09.018
基于冲击模型的含间隙高速凸轮机构动力学分析
Dynamic analysis of high speed cam mechanism with clearance based on impact model
何雪明 1何楷 1武美萍 1纪小刚1
作者信息
- 1. 江南大学江苏省食品先进制造装备技术重点实验室,江苏无锡214122
- 折叠
摘要
Abstract
In order to improve the dynamic performance of cam mechanism with high clearance.The two-state impact sub-model is used to simulate the gap between the cam and the follower to construct the dynamic model of the gripping cam mechanism considering the damping.The finite difference method is used to solve the dynamic equation with the cycloidal cam curve as the excitation function.The time domain and frequency domain analysis of the gap dynamics model are carried out,and the corresponding acceleration time domain and frequency domain response map are drawn.The influence of the damping ratio and the cycle ratio on the dynamic response is obtained.Then,several high speed cam curves are kinetics analysis.It is concluded that the existence of the gap will lead to the deterioration of the response accuracy of the system.The effect of the gap on the accelerating section of the follower is small,which has a great influence on the deceleration and deceleration period.The application of traditional theory in gap dynamics is limited.关键词
含间隙高速凸轮机构/动力学模型/时域分析/频域分析Key words
high speed cam mechanism with clearance/dynamic model/time domain analysis/frequency domain analysis引用本文复制引用
何雪明,何楷,武美萍,纪小刚..基于冲击模型的含间隙高速凸轮机构动力学分析[J].食品与机械,2017,33(9):84-89,93,7.
