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Numerical modeling and analysis of the mechanism of a novel shock wave regulator for impact test

Wang Gongxian Zhang Zhiyi Wang Yu

高技术通讯(英文版)2008,Vol.14Issue(2):187-192,6.
高技术通讯(英文版)2008,Vol.14Issue(2):187-192,6.

Numerical modeling and analysis of the mechanism of a novel shock wave regulator for impact test

Numerical modeling and analysis of the mechanism of a novel shock wave regulator for impact test

Wang Gongxian 1Zhang Zhiyi 2Wang Yu1

作者信息

  • 1. Institute of Vibration, Shock and Noise, Shanghai Jiaotong University, Shanghai 200240, P.R.China
  • 2. School of Logistics Engineering, Wuhan University of Technology, Wuhan 430063, P.R.China
  • 折叠

摘要

Abstract

Based on the concept of hydraulic dissipation of kinetic energy, a novel shock wave regulator, which is composed of a damper and an externally triggered valve, is presented with thorough analyses on its working mechanism. By establishing motion equations of each component of the regulator and simulating the dynamic behavior of the whole system, the shock wave regulator is demonstrated numerically to be able to change the width and amplitude of shock pulses. Prompt and easy adjustment can be achieved by changing the equivalent flow area of damping orifices and consequently the closing velocity of the flow area of a valve, which makes it applicable to different impact testing.

关键词

impact test/bumper/shock pulse/hydraulic braking

Key words

impact test/bumper/shock pulse/hydraulic braking

分类

信息技术与安全科学

引用本文复制引用

Wang Gongxian,Zhang Zhiyi,Wang Yu..Numerical modeling and analysis of the mechanism of a novel shock wave regulator for impact test[J].高技术通讯(英文版),2008,14(2):187-192,6.

基金项目

Supported by the Naval Warship Research Department of Defense (No.05131/1046). (No.05131/1046)

高技术通讯(英文版)

1006-6748

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