Incentives of nonlinear dynamics behaviors in electro-hydraulic servo system

被引：0
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作者：
Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, No. 438, Hebei Street, Qinhuangdao, China [1 ]
不详 [2 ]
机构：
来源：
ICIC Express Lett. | / 1卷 / 231-236期
基金：
中国国家自然科学基金;
关键词：
Hydraulic servomechanisms - Differential equations - Dynamic models - Bifurcation (mathematics);
D O I：
暂无
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学科分类号：
摘要：
Based on the nonlinear dynamics principle, the nonlinear dynamic model of electro-hydraulic servo system (EHSS) was established. The influence laws of nonlinear spring force and friction on dynamic characteristics of EHSS were explored. Moreover, the bifurcation characteristics arising from primary excitations were investigated. The incentives of nonlinear dynamics behaviors (NDBs) in EHSS were revealed. Results show that the dynamic differential equations of EHSS can be described by Duffing-Van Der Pol equation. When EHSS is in working, excitation force, spring force nonlinear term and damping can result in complicated NDBs. The results can provide theoretical guidance for the parameter optimization during EHSS designing.
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