大学物理 ›› 2012, Vol. 31 ›› Issue (12): 8-8.

• 著者文摘 • 上一篇    下一篇

匀质边框三角形刚体绕质心轴的转动惯量公式

周国全 徐斌富   

  1. 武汉大学物理学院物理系,湖北武汉430072
  • 出版日期:2012-12-25 发布日期:2012-12-20

Rotation inertia of a rigid triangular frame about its center-of-mass axis

  • Online:2012-12-25 Published:2012-12-20

摘要: 确定了任意匀质边框三角形刚体的质心的几何位置;在此基础上推导出匀质边框三角形刚体绕质心轴的转动惯量公式,为计算三角形网格状边框刚体绕质心轴的转动惯量奠定了理论基础.

关键词: 刚体, 转动惯量, 三角形, 边框, 质心

Abstract: The center of mass for an arbitrary and even triangular frame is determined by using pure geometrical method ; based upon it, the rotation inertia formula of a rigid triangular frame about its center-of-mass axis is derived; and thus lay a theoretical foundation for the calculation of rotation inertia about a grid-like rigid body.

Key words: rigid, rotation inertia, triangle, frame, center of mass

中图分类号: 

  • O313.3