求积分，接触力，在密封中，如果端面膜厚过小，可以用这个程序来计算接触力-force in seal，if contact force is considered,this progrom can count the contact force.

迹线法实现轮轨接触，是轮轨接触力及垂向力的基础内容，需要轮轨接触角及型面数据作为初始 内容-Trace method to achieve the wheel-rail contact, is wheel-rail contact force and the vertical force base, you need a wheel-rail contact angle and surface data as the initial content type

用于求解单个间隙的动力学仿真，包含接触碰撞力模型-Dynamics simulation is used to solve a single gap, including contact force model

用来求解渐开线齿轮接触点的法向力、齿面的法向以及切向运动速度的MATLAB程序-Involute gear used to solve the point of contact normal force, the tooth surface of normal and tangential velocity MATLAB program