大学物理 ›› 2014, Vol. 33 ›› Issue (2): 41-41.

• 著者文摘 • 上一篇    下一篇

黏滞摩擦下转盘转动惯量的分析与测量

庞玮[1] 李志伟[2] 蔡培婷[2] 宁欣[1]   

  1. [1]广东工业大学实验教学部,广东广州510006 [2]广东工业大学机电工程学院,广东广州510006
  • 出版日期:2014-02-25 发布日期:2014-02-20

Analysis and measurement of the momentum of the inertia of a rotating disk under frictional torque

  • Online:2014-02-25 Published:2014-02-20

摘要: 分析了正比于转动角速度的黏滞摩擦对刚体转盘转动的影响,给出了转盘在黏滞摩擦下加速转动和自由减速转动的角速度公式,并利用Tracker视频分析软件对转盘的转动进行了分析,验证了所给出公式的正确性并在较高精度下测量出了系统的转动惯量.

关键词: 转动惯量, 粘滞摩擦, Tracker软件, 视频分析

Abstract: The influence of a frictional torque to the rotation of a rigid disk is analyzed. The equation of the disk' s rotation movement are given. Based on these analyses, the experimental research of the disk' s rotating is carried out by using video capture and Tracker software. The experimental results confirm the theoretical analyses and give the momentum inertia of the disk in a relatively high precision.

Key words: momentum of the inertia, frictional torque, tracker software, video analysis

中图分类号: 

  • O4-39