大学物理 ›› 2009, Vol. 28 ›› Issue (4): 14-14.

• 著者文摘 • 上一篇    下一篇

三线摆加上刚体后振动周期变化的研究

王玉清 杨能勋 黄保瑞   

  1. 延安大学物理与电子信息学院,陕西延安716000
  • 出版日期:2009-04-20 发布日期:2009-04-20

Research on variation of oscillating period of three-wire pendulum with rigid body

  • Online:2009-04-20 Published:2009-04-20

摘要: 根据振动方程从理论上推导了三线摆放上刚体后振动周期的变化规律,设计了一个新实验,对各种条件下摆的振动周期进行测量,用图解法直观地揭示了三线摆放上刚体后振动周期的变化规律,结果表明理论与实验得到的结论一致,从而加深学生对刚体动力学的理解.

关键词: 三线摆, 振动周期, 回转半径, 质量分布

Abstract: The varying regularity of oscillating period of three-wire pendulum with rigid body above it is derived theoretically according to the oscillation equation, a new experiment is designed to measure the oscillating period of three-wire pendulum in all sorts of condition, and the varying regularity is exposited intuitively using descriptive geometry solution. It is shown that the theoretical result is in agreement with the experiment.

Key words: three-wire pendulum, oscillating period, gyration radius, mass distribution

中图分类号: 

  • O313.3