摘要
设计了2种摆来分别演示刚体的平动和平面平行运动,并比较了在2种不同运动形式下摆的周期.用拉格朗日方程得到了两摆周期的表达式,通过比较二者的拉格朗日函数,分析了两摆周期不同的原因.
Two pendulums were designed to demonstrate the translational motion and plane-paral-lel motion of rigid bodies .The periods of the two pendulums were deduced with Lagrange equation . The reason of the different periods of two pendulums was analyzed by comparing the Lagrange fuc-tio n .
出处
《物理实验》
2014年第4期30-33,共4页
Physics Experimentation
基金
苏州科技学院力学课程群建设项目资助(No.2010KJB-21)
关键词
刚体
平动
摆
周期
rigid body
translational motion
pendulum
period
