›› 2012, Vol. 32 ›› Issue (2): 147-150.DOI: 10.3969/j.issn.1006-1355-2012.02.036

• 7.减振降噪设备和器材 • Previous Articles     Next Articles

Mechanical Model for Creep Performance Testing and Analysis of Polyurethane Isolator

SHU Li-hong1,2, HE Lin1,2   

  1. ( 1. Inst. of Noise & Vibration， Naval Univ. of Engineering， Wuhan 430033， China 2. National Key Laboratory on Ship Vibration and Noise, Wuhan 430033 , China )
  • Received:2011-10-31 Revised:2011-11-08 Online:2012-04-18 Published:2012-04-18
  • Contact: SHU Li-hong

聚氨酯隔振器蠕变特性力学模型试验研究

束立红1，2，何 琳1，2   

  1. （ 1. 海军工程大学 振动与噪声研究所， 武汉 430033 2. 船舶振动噪声重点实验室， 武汉 430033 ）
  • 通讯作者: 束立红

Abstract: A generalized mechanical model for polyurethane and rubber isolators analysis based on Zener components was presented. The parameters related to the creep characteristics of the isolators could be extracted readily with genetic algorithm from the step-loading process as well as from the non-ideal loading process. Seven polyurethane and rubber isolator specimens were tested and their model parameters were obtained through the analysis of the testing data. Results from the computation and testing show that the presented model can predict the creep characteristics of the polyurethane and rubber vibration isolators with high accuracy.

Key words: vibration and wave, creep, mechanical model, vibration isolator, Polyurethane

摘要： 通过理论分析，提出以Zener元件为基的隔振器力学模型，借用遗传方法，该模型不仅能从阶跃加载中获取参数，更能从各种非理想加载过程中提取参数。因此，能很好地描述隔振器的蠕变特性。对7种不同聚氨酯和橡胶试件的试验结果进行模型参数分析，理论分析和试验结果表明，提出的广义模型可用于描述和预估聚氨酯和橡胶隔振器的蠕变特性。

关键词: 振动与波, 蠕变, 力学模型, 隔振器, 聚氨酯

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