噪声与振动控制

›› 2010, Vol. 30 ›› Issue (2): 5-8.DOI: 10.3969/j.issn.1006-1355.2010.02.005

• 振动理论与数值解法 • 上一篇    下一篇

《基于振动功率流的船艉传递路径分析》

冯国平，黄修长，刘兴天，张志谊，华宏星   

  1. （上海交通大学机械系统与振动国家重点实验室， 上海200240）
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-04-18 发布日期:2010-04-18
  • 通讯作者: 冯国平

《Analysis of Transmission Paths of Ship Stern VibrationBased on Power Flow Theory》

FENG Guo-ping,HUANG Xiu-chang,LIU Xing-tian,ZHANG Zhi-yi,HUA Hong-xing   

  1. (State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University200240, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-18 Published:2010-04-18
  • Contact: FENG Guo-ping

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摘要： 根据模态分析理论和功率流理论，分别从振动模态和能量的角度，对艉部系统的传递路径进行理论推导和数值分析。研究发现，螺旋桨处横向激励时船艉的三处传递路径中，在低频段，尾端支撑为主要的传递路径；在中频段，推力轴承基座处为主要的传递路径。

关键词: 振动与波, 传递路径, 模态分析, 功率流

Abstract: Vibration of ship sterns is a key point in ship vibration control. Study of the characteristic of vibration transmission paths of ship stern will be helpful for vibration reduction of the ship stern. Based on the modal shape analysis methods and power flow theory, the transmission path of the stern system vibration is deducted and analyzed numerically. The results show that the stern bearing is the main path for lower frequency vibration, while the thrust bearing base is the main path for medium frequency vibration.

Key words: vibration and wave, transmission paths, modal analysis, power flow

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