中国机械工程2018，Vol.29Issue(10)：1159-1165,7.DOI:10.3969/j.issn.1004-132X.2018.10.005
二通插装阀非线性动力学行为
Nonlinear Dynamics Behaviors of Two-way Cartridge Valves
摘要
Abstract
In order to study the nonlinear vibration problems of the valve spools in the direction control circuit of two-way cartridge valves during the opening processes with pressure fluctuations,considering the pipeline volume effects,a nonlinear dynamics model of valve spools was established,and the numerical simulation was carried out by MATLAB/Simulink. Firstly,according to the model oil source pressure fluctuations existing or not,the opening characteristics of valve spools were studied by means of time domain diagram and phase diagram.Furthermore,in the conditions of oil source pressure fluctuations,the influences of different pressure grades of oil source on the valve spool were analyzed.Finally,for different pipe lengths, the influences of pipe length on the dynamics behaviors of valve spools were studied.The results show that the vibration behaviors of valve spools may be caused by the pressure fluctuations of oil source. In the same pressure fluctuations of oil source,the vibration behaviors of valve spools are weakened with the increase of oil source pressures,which is not easy to collide. Increasing the pipe lengths between pump outlet and valve group,the nonlinear vibration behaviors of valve spools are easily occured,accompanied by paroxysmal vibration beharior. The research provides a theoretical basis for the instability mechanism of large cartridge valve.关键词
压力脉动/管道容积效应/二通插装阀/非线性动力学Key words
pressure fluctuation/pipeline volume effect/two-way cartridge valve/nonlinear dynamics分类
机械制造引用本文复制引用
张永顺,姜万录,苏晓,雷亚飞..二通插装阀非线性动力学行为[J].中国机械工程,2018,29(10):1159-1165,7.基金项目
国家自然科学基金资助项目(51475405) （51475405）
国家重点基础研究发展计划(973计划)资助项目(2014CB046405) （973计划）
河北省自然科学基金资助重点项目(E2018203339) （E2018203339）
燕山大学基础研究专项课题青年课题(15LGB005) （15LGB005）
