根据所需直线运动的速度-位移关系，实现凸轮设计。利用Matlab，对给入直线速度-位移曲线，设计对心直线凸轮形状。完成了动画仿真，显示出凸轮运动与对心直线的运动仿真和对应关系-According to the required linear motion velocity- displacement relationship, to achieve the cam design. The linear cam shape of the center line is designed for the linear velocity-displacement curve. Completed the animation simulation, showing the cam motion and the heart straight line motion simulation and the corresponding relationship