摘要
建立了摆的动力学方程,导出了动能定理的微分表达式和积分表达式,用MATLAB软件编程画出了转动动能、平动动能与角坐标间的关系曲线,分析了平动动能对振动周期的影响.
The dynamic equations of three-line pendulum are given, the differential and integral expressions of kinetic energy theorem are derived. The variation curves of rotational kinetic energy and translational kinetic energy changing with angle coordinate are drawn using MATLAB. The influence of translational kinetic energy on the period of vibration is analyzed.
出处
《大学物理》
北大核心
2005年第8期47-50,共4页
College Physics
关键词
三线摆
动能定理
转动动能
平动动能
振动周期
three-line pendulum
kinetic energy theorem
rotational kinetic energy
translational kinetic energy
period of vibration
