大学物理 ›› 2016, Vol. 35 ›› Issue (11): 18-19.doi: 10.16854/j.cnki.1000-0712.2016.0159

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竖直悬挂弦上横波的波速

柯红卫,高 磊,周嘉惠   

  1. 天津大学理学院物理系,天津 300072
  • 收稿日期:2015-12-23 修回日期:2016-03-28 出版日期:2016-11-20 发布日期:2016-11-20
  • 作者简介:柯红卫(1977—),男,江西崇仁人,天津大学物理系副教授,博士,主要从事理论物理研究工作.
  • 基金资助:
    国家自然科学基金项目(11375128)资助

Wave velocity of transverse wave in vertical suspended string

KE Hongwei,GAO Lei,ZHOU Jiahui   

  1. Department of Physics,School of Science,Tianjin University,Tianjin 300072,China
  • Received:2015-12-23 Revised:2016-03-28 Online:2016-11-20 Published:2016-11-20

摘要: 解析地计算了竖直悬挂弦上横波的相速度,与直接应用张力均匀弦上的波速公式计算结果一致,从而证实了张力均匀弦上的波速公式对张力不均匀弦适用.

关键词: 弦, 横波, 波速

Abstract: The wave velocity of transverse wave in vertical suspended string is calculated analytically.The result  can be also obtained by using the formula of wave velocity in a spring with uniform tension,which means that the  formula can be applied for a spring with uneven tension.

Key words: spring, transverse wave, wave velocity