Experiment and Application Simulation Research of a New Type of Automobile Vibration Damping Sheet

The structure damping ratio and Rayieigh damping factors of vibration damping sheet,consisting of non-vulcanized butyl rubber,are calculated from experiment results,which could be directly used in finite element simulation research of automobile treated with damping materials.The front-door models,both treated with and without restrained damping sheets,are constructed with Rayieigh damping factors calculated from the experiment results. Then vibration damping results of the two models are compared under impact load.Results show that the vibration reduction effect is obvious of the front-door treated with restrained damping sheets.