利用参数反演预测聚氨酯隔振器的蠕变曲线  

Predicting Creep Curve of Polyurethane Vibration Isolator by Inversion Analysis Method

作　　者：李厚民[1] 束立红[2] 戴杰[1] 张岩[1] 

机构地区：[1]湖北工业大学工程力学系,武汉430068 [2]海军工程大学振动与噪声研究所,武汉430033

出　　处：《湖北工业大学学报》2014年第1期72-75,共4页Journal of Hubei University of Technology

摘　　要：用有限元对橡胶类材料制作的隔振器进行计算时,材料的某些参数确定非常困难。以某型在研聚氨酯隔振器为例,利用参数反演方法,预测其蠕变曲线。首先通过对聚氨酯材料的压缩蠕变试验进行模拟,利用实测压缩蠕变曲线反演确定相关蠕变参数;然后用这些蠕变参数模拟材料的剪切蠕变试验,以验证参数的合理性;最后将这些蠕变参数带入某型隔振器的蠕变计算中,预测出其蠕变曲线。It is very hard to determine some material parameters during finite element calculation of isola- tors made of rubber. A polyurethane vibration isolator under development was taken as example and pa- rameter inversion method was used to predict creep curve. The compression creep tests of polyurethane material were performed, and related parameters were inversely determined due to the simulation of meas- ured creep curve. Then shear creep tests were simulated by using them to verify the rationality. Finally, these parameters were employed in the creep calculation to predict creep curve of a new isolator.

关 键 词：聚氨酯 隔振器 蠕变 有限元 参数反演 

分 类 号：TH702[机械工程—仪器科学与技术] TB535.1[机械工程—精密仪器及机械]