基于橡胶本构模型管路隔振器性能仿真研究

Simulation research on the performance of pipeline vibration isolators based on the rubber hyperelasticity constitutive model

采用管路隔振器是降低船舶管路系统振动噪声传递的有效手段,但舰船管路比较复杂需要根据管路规格设计系列化隔振器。如何有效地预报不同规格管路隔振器在实际使用过程中的性能是管路隔振器系列化设计亟待解决的问题。为此本文通过橡胶拉伸试验拟合橡胶超弹性本构参数,利用有限元方法对多款隔振器性能(静变形和固有频率)进行仿真计算,并由试验对计算结果进行验证。结果表明,设计的隔振器数值仿真与试验结果误差率均低于10%,证明该参数能有效预报多规格隔振器性能。本文结果可为舰船管路隔振器系列化设计提供指导。

The use of pipeline vibration isolator is an effective means to reduce the transmission of vibration and noise of the ship pipeline system,but the ship pipeline is more complex need to be designed according to the specifications of the pipeline series model vibration isolator.How to effectively forecast the performance of different specifications of pipeline vibration isolators in the actual use of the process is the design of pipeline vibration isolators urgently need to solve the problem.To this end,this paper fits the rubber hyperelasticity intrinsic parameters through rubber tensile test,simulates the performance of vibration isolators(static deformation and natural frequency)by using the finite element method,and verifies the results of the calculations by tests.The results show that the error rate of both numerical simulation and experimental results of the designed vibration isolator is less than 10%.It is proved that this parameter can effectively predict the performance of multi-specification vibration isolators.The research in this paper provides guidance for the series design of ship pipeline vibration isolators.