噪声与振动控制

›› 2010, Vol. 30 ›› Issue (1): 7-9.DOI: 10.3969/j.issn.1006-1355.2010.01.007

• 振动理论与数值解法 • 上一篇    下一篇

《有阻尼状态下模态机械阻抗综合法研究》

孔敬之1，刘永明2

  

  1. （1. 同济大学铁道与城市轨道交通研究院，上海201804;2. 同济大学铁道与城市轨道交通研究院，上海200331）
  • 收稿日期:2009-05-14 修回日期:1900-01-01 出版日期:2010-02-18 发布日期:2010-02-18
  • 通讯作者: 孔敬之

《Study on Mode Mechanical Impedance Synthesis Method with Damping Effect》

KONG Jing-zhi1,LIU Yong-ming2   

  1. (1. College of Railroad and Urban Railway Transportation, Tongji University, Shanghai201804, China;2. College of Railroad and Urban Railway Transportation, Tongji University, Shanghai200331, China)
  • Received:2009-05-14 Revised:1900-01-01 Online:2010-02-18 Published:2010-02-18
  • Contact: KONG Jing-zhi

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摘要：

研究存在弹性变形的复杂机械系统的机械阻抗，提出有阻尼作用下的模态机械阻抗综合法。用模块化处理方式对其进行推导。最后，以浮筏系统模型为实例，进行系统建模和整个系统的固有频率计算和分析。

关键词: 振动与波, 模态, 机械阻抗, 阻尼, 振动, 固有频率

Abstract:

In this paper, the comprehensive mechanical impedance problem of the complicated mechanical system is studied with the elastic deformation considered. The synthesis method of mode mechanical impedance with damping effect is presented. The process of system modeling by this method is similar to that of the modular processing. Finally, a floating raft system model is presented,and the natural frequency is computed and analyzed.

Key words: vibration and wave, vibration mode, mechanical impedance, damping, natural frequency

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