燕山大学学报2016，Vol.40Issue(5)：399-406,8.
基于摩擦与泄漏补偿的主动静态电液测力系统建模与实验研究
Mathematical modeling and experimental research of active-static electro-hydraulic force measurement based on friction and leakage compensation
摘要
Abstract
In order to overcome the impact of friction and leakage on the measurement accuracy in the electro⁃hydraulic system, a friction and leakage total resistance equation of hydraulic cylinder in force measuring system is established based on the theory of elastic⁃plastic deformation and the fluid mechanics continuity equations.The simulation model of hydraulic cylinder considering the friction and leakage and the elongation of the piston rod is established relying on AMESim, the impact on the measurement accuracy is studied by analyzing the impact on leakage of the elongation of the piston rod and the oil pressure. A system of the static active electro⁃hydraulic force measurement is build, and a real⁃time compensation of the oil thrust is carried out based on the model of friction and leakage. The theory and experiment results show that the measurement accuracy from the friction and leakage compensation method is 0.58%.The theoretical basis and methods provide a new method for solving the problem of low accuracy by utilizing the electro⁃hydraulic force measurement.关键词
电液测力/主动静态/泄漏量/测量精度Key words
electro-hydraulic force measurement/static active/leakage amount/measurement accuracy分类
机械制造引用本文复制引用
赵延治,焦雷浩,吴询,李扬,刘晓晓,于跃斌..基于摩擦与泄漏补偿的主动静态电液测力系统建模与实验研究[J].燕山大学学报,2016,40(5):399-406,8.基金项目
国家自然科学基金资助项目（51105322）；河北省自然科学基金资助项目（E2014203176）；河北省高等学校科学技术研究青年基金资助项目（QN2015040）；中国博士后科学基金面上资助项目 （）
