中国机械工程Issue(8)：1085-1091,1104,8.DOI:10.3969/j.issn.1004132X.2015.08.017
非线性液压弹簧力对电液伺服系统非线性动力学行为影响的研究
Research on Influences of Nonlinear Hydraulic Spring Force on Nonlinear Dynamic Behaviors of Electro-hydraulic Servo System
摘要
Abstract
With electro-hydraulic servo system as the research object,the influences of nonlinear HSF on system dynamic characteristics were explored.Based on the principles of the nonlinear dynam-ics,a dynamical model of the system was established.Then,a conclusion is indicated:the effects of nonlinear HSF can be described by Duffing equation.The bifurcation phenomenon and typical nonlin-ear dynamical behaviors which implied within system were revealed through numerical analyses.The measured dynamic data were thoroughly analyzed.The “jump phenomenon”caused by soft or hard spring property was revealed.The results indicate that the nonlinear effects of HSF can cause nonlin-ear vibration,and it should be taken into account in system modeling and dynamic characteristics re-search.关键词
电液伺服系统/非线性液压弹簧力/跳跃现象/分岔/混沌Key words
electro-hydraulic servo system/hydraulic spring force(HSF)/jump phenomenon/bifur-cation/chaos分类
机械制造引用本文复制引用
朱勇,姜万录,刘思远,郑直..非线性液压弹簧力对电液伺服系统非线性动力学行为影响的研究[J].中国机械工程,2015,(8):1085-1091,1104,8.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项目(E2013203161,E2013203114) （E2013203161,E2013203114）
