摘要
研究了运动复摆内的能量密度、能流及应力的分布规律．提出了能量不变点的概念，解释了能量不变点与振动中心、打击中心三者重合的动力学原因．
The distribution of energy density, energy flow and stress in a moving compound pendulum is studied. A new concept, the point of unvarying energy, is presented. The dynamical reason for coincidence of three points, the point of unvarying energy, the center of oscillation and the center of percussion, is given.
出处
《大学物理》
1999年第7期1-3,7,共4页
College Physics
基金
徐州师范大学自然科学基金
关键词
复摆
能量密度
能流
应力
能量不变点
compound pendulum
energy density
energy flow
stress
point of unvarying energy
