论文部分内容阅读
利用三次均匀 B样条曲线逼近凸轮机构从动件位移线图的方法 ,可使设计者通过交互界面直接操作图线进行修正 ,以降低最大加速度及最大跃度 ,使加速度曲线光滑 ,从而多目标优化从动件的动力特性。该方法计算简捷 ,通过交互界面提供运动线图及有关数据 ,据此确定需要修正及预修正的点的位置 ,并通过界面接收设计者的数据。优化过程可视、可控、易于操作。计算结果表明 ,该方法逼近效果好 ,在距原位移偏移量很小的情况下 ,可达到较好的优化效果
Using cubic uniform B-spline curves to approximate the displacement diagram of the cam follower allows the designer to modify the graph directly through the interactive interface to reduce the maximum acceleration and the maximum jerk so that the acceleration curve is smooth and the multi-target Optimize the dynamic characteristics of follower. The method is simple and easy to calculate, and provides the motion diagram and related data through the interactive interface. Based on this, the position of the point to be corrected and pre-corrected is determined and the designer’s data is received through the interface. The optimization process is visual, controllable and easy to operate. The calculation results show that this method has a good approximation effect and can achieve better optimization results when the offset from the original displacement is very small