华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (2): 90-94.doi: 10.3969/j.issn.1000-565X.2010.02.017

• 机械工程 • 上一篇    下一篇

氮爆式液压冲击器的仿真建模

丁问司 黄晓东   

  1. 华南理工大学 机械与汽车工程学院, 广东 广州 510640
  • 收稿日期:2009-04-01 修回日期:2009-05-14 出版日期:2010-02-25 发布日期:2010-02-25
  • 通信作者: 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
  • 作者简介: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.
  • 基金资助:

    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)

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)

摘要: 为研究液压冲击器的冲击能量控制特性,根据功率键合原理,搭建了氮爆式液压冲击器工作时冲程和回程两阶段的功率键图,据此建立了氮爆式液压冲击器的状态方程组.通过AMESIM平台构建了氮爆式液压冲击器仿真系统.该系统能综合考虑冲击器运动状态高频变化特点,可快速实现对氮爆式液压冲击器主要参数的计算.利用DBS500型氮爆式液压冲击器现有的设计参数进行仿真计算,计算结果与实测参数之误差在6%以内,表明所建模型是基本合理的.

关键词: 液压冲击器, 键图模型, 计算机仿真

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