跷跷板瞬心加速度的3种求解方法

Three solution methods for the instantaneous acceleration of seesaw

运用3种方法研究传统跷跷板的瞬心加速度,即利用理论力学的点的合成运动方法,运动方程求导数方法和求极限的方法求加速度.基于这3种求跷跷板加速度的情况,特别提出极限法求加速度,从而判断跷跷板的运动情况,为传统跷跷板与轴转动跷跷板的动力分析比较准备条件.

Studies the instantaneous center acceleration of traditional seesaw by three methods,that is the method of point synthesis of theoretical mechanics,the method of derivative of motion equation and the method of limit.Based on these three kinds of situations to find the acceleration of the seesaw,especially the limit method is put forward to find the acceleration,so as to judge the motion of the seesaw and prepare the conditions for the dynamic analysis of the traditional seesaw and the fixed-axis rotating seesaw.