氮爆式液压冲击器的仿真建模  

Simulation Modeling of Nitrogen-Inflating Hydraulic Hammer

作　　者：丁问司[1] 黄晓东[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2010年第2期90-94,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：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.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.

关 键 词：液压冲击器 键图模型 计算机仿真 

分 类 号：TH137.51[机械工程—机械制造及自动化]