大学物理 ›› 2013, Vol. 32 ›› Issue (4): 8-8.

• 著者文摘 • 上一篇    下一篇

气垫导轨上非对称双弹簧振子的圆频率

何勤 王正岭   

  1. 江苏大学物理系,江苏镇江212003
  • 出版日期:2013-04-20 发布日期:2013-04-20

Some infinite integrals involving essential singularities of the integrand

  • Online:2013-04-20 Published:2013-04-20

摘要: 讨论了气垫导轨上非对称双弹簧振子系统的振动问题,导出了双弹簧振子的频率方程,求出了系统基本圆频率近似解的表达式,给出了计算系统基本圆频率、高阶圆频率的数值精确解的方法.

关键词: 基本圆频率, 高阶圆频率, 牛顿迭代法

Abstract: Several types of infinite integrals involving essential singularities of the integrand in the interval of integration are studied. The integrands are products of a general rational function, a trigonometric function of x and one of 1/x. General formulae are derived by using the approach of contour integration and the results are expressed in terms of residues. Several examples are given.

Key words: infinite integrals, essential singularities, contour integration, residue theorem

中图分类号: 

  • O325