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。
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.
出处
《噪声与振动控制》
CSCD
2012年第2期147-150,共4页
Noise and Vibration Control
关键词
振动与波
蠕变
力学模型
隔振器
聚氨酯
vibration and wave
creep
mechanical model
vibration isolator
Polyurethane
