Research on the Coupling Mechanism of Electro-hydraulic Parameters for Hydraulic Power System
-
摘要: 利用功率键合图的方法,从能量转换的角度分析了液压动力系统电液参数的耦合机理,并且推导了稳态运行时系统压力与动力源电流的数学关系,理论上说明在动力源电流信号中蕴含了液压系统压力变化信息,从而得出通过非嵌入式的电流信号的监测可获得液压系统的运行状态信息。在此基础上,利用MatlabSimscape对本文研究的液压动力系统试验台进行建模和冲击工况的仿真,同时进行相应可靠试验,仿真结果和实验数据均验证了理论分析的正确性,进一步证明了利用电流信号反映液压系统运行工况的可行性。
-
关键词:
- 液压动力系统 /
- 电液参数 /
- 耦合 /
- MatlabSimscape
Abstract: From the view point of energy conversion,the electro-hydraulic parameters coupling mechanism was analyzed based on the Power Bond Graph method.The mathematical relationship between the pressure and current of the system on a steady operation condition was deduced,which showed that the current of power source contains the pressure change information of the hydraulic system,finally,the conclusion that the running state of hydraulic power system can be determined by non-embedded measurement of the current was put forward.Based on the above,the simulation model of the hydraulic power system studied in the paper was set-up and the simulation figures of the impact condition is given,the corresponding experiments were conducted.The simulation results and the test date agree well and it proves that that the running condition can be recognized by monitoring the current signal.-
Key words:
- hydraulic power system /
- electro-hydraulic parameters /
- coupling /
-
[1] 谷立臣,张优云. 多传感器信息融合中的关联特性研究[J].机械工程学报,2000,(04):53-57. [2] 王益群,张伟. 流体传动及控制技术的评述[J].机械工程学报,2003,(10):95-99. [3] 谷立臣. 液压设备多源诊断信息获取实验装置及实验方法[P].中国,200810232493,6,2009. [4] 马玉,谷立臣. 基于电流信号的液压设备状态监测技术研究[J].液压与气动,2005,(07):25-28. [5] 张传才. 液压动力系统建模与实验研究[D].西安:西安建筑科技大学,2002. [6] 王中双. 键合图理论及其在系统动力学中的应用[M].哈尔滨:哈尔滨工程大学出版社,2007. [7] 李毅,谷立臣. 基于AMESim仿真的液压系统参数耦合研究[J].液压与气动,2010,(11):19-21. [8] 王楠,谷立臣. 霍尔传感器状态监测电路的设计及其应用[J].中国测试,2009,(09):73-76. -
点击查看大图
计量
- 文章访问数: 155
- HTML全文浏览量: 11
- PDF下载量: 3
- 被引次数: 0
下载:
