基于三角函数型运动规律凸轮配气机构运动仿真

Cam Valve Train Motion Simulation Based on Trigonometric Function Motion Law

研究基于三角函数型运动规律下凸轮从动件冲击现象大小,并与多项式运动规律下运动仿真结果进行对比,选择最佳运动规律以适配凸轮轮廓线型设计。Matlab对从动件两种三角函数型运动规律进行仿真,得出凸轮转角与位移、速度、加速度之间关系曲线,并与多项式运动规律仿真结果进行对比,同时考虑最大速度与加速度值,得出正弦加速度运动规律下凸轮从动件冲击现象最小。

The impact of the cam follower under the trigonometric motion law is studied, and compared with the motion simulation results under the polynomial motion law, the optimal motion law is selected to fit the cam contour design. Matlab simulates the two trigonometric motion laws of the follower, and obtains the relationship between the cam angle and the displacement, velocity and acceleration, and compares it with the simulation results of the polynomial motion law, and considers the maximum velocity and acceleration values. Under the sinusoidal acceleration motion law, the cam follower has the smallest impact phenomenon.