大学物理 ›› 2020, Vol. 39 ›› Issue (01): 9-11.doi: 10.16854 / j.cnki.1000-0712.190067

• 教学讨论 • 上一篇    下一篇

椭圆截面圆环和扭圆环的转动惯量

于凤军,田俊龙,汤振杰,张希威   

  1. 安阳师范学院物理与电气工程学院,河南安阳 455000
  • 收稿日期:2019-02-07 修回日期:2019-05-21 出版日期:2020-01-20 发布日期:2020-03-06
  • 作者简介:于凤军(1959—),男,河南安阳人,安阳师范学院物理与电气工程学院教授,主要从事理论物理、天体力学研究和教学工作.
  • 基金资助:
    国家自然科学基金(11475004)资助

The moment of inertia of ring and torsional ring with elliptic cross section

YU Feng-jun,TIAN Jun-long,TANG Zhen-jie,ZHANG Xi-wei   

  1. College of Physics and Electrical Engineering,Anyang Normal University,Anyang,Henan 455000,China
  • Received:2019-02-07 Revised:2019-05-21 Online:2020-01-20 Published:2020-03-06

摘要: 首先建立了椭圆截面的圆环和扭圆环的数学模型,然后根据定义计算绕3 个坐标轴的轴转动惯量和惯量积,其间充分利用截面图形的对称性对计算过程简化,得到一些有益的结论和结果.

关键词: 转动惯量, 惯量积, 惯量系数, 扭圆环, 椭圆截面

Abstract: The mathematical models of rings and torsional rings with elliptical cross section are established.According to the definition,the moment of inertia and the product of inertia about three coordinate axes are calculated. The calculation process is simplified by making full use of the symmetry of the section figure. Some useful conclusions and results are obtained.

Key words: moment of inertia, nertia coefficient, product of inertia, torsional ring, elliptical cross section