Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (2): 90-94.doi: 10.3969/j.issn.1000-565X.2010.02.017

• Mechanical Engineering • Previous Articles     Next Articles

Simulation Modeling of Nitrogen-Inflating Hydraulic Hammer

Ding Wen-si  Huang Xiao-dong   

  1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2009-04-01 Revised:2009-05-14 Online:2010-02-25 Published:2010-02-25
  • Contact: 丁问司（1968-），男，博士，副教授，主要从事机电液一体化系统振动控制研究． E-mail:wsding@scut．edu．cn
  • About author:丁问司（1968-），男，博士，副教授，主要从事机电液一体化系统振动控制研究．
  • Supported by:

    国家自然科学基金资助项目（50775075）;机械系统与振动国家重点实验室基金资助项目（VSN-2008-01）

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Abstract:

In order to analyze the impact energy-controlling performance of nitrogen-inflating hydraulic hammer, the power bond graphs of both the stroke and the backhaul are presented based on the theory of power bond, and the state equations of the nitrogen-inflating hydraulic hammer are established. Afterwards, a simulation model, which takes into consideration the high-frequency variation of motion state of hydraulic hammer and realizes the fast calculation of main simulation parameters, is built in the AMESIM system. Then, a simulation is performed using the existing design parameters of DBS500 hydraulic hammer, and the error between the simulated and the test results is found to be less then 6%. It is thus concluded that the proposed model is basically correct and reliable.

Key words: hydraulic hammer, bond graph model, computer simulation