液压气动与密封
液壓氣動與密封
액압기동여밀봉
Hydraulics Pneumatics & Seals
2015年
9期
22-25,31
,共5页
俞浙青%孟嘉乐%徐龙稳%毛国新
俞浙青%孟嘉樂%徐龍穩%毛國新
유절청%맹가악%서룡은%모국신
闭环控制%电液比例控制%数学模型%仿真
閉環控製%電液比例控製%數學模型%倣真
폐배공제%전액비례공제%수학모형%방진
closed-loop control%electro-hydraulic proportional control%mathematical model%simulation
该文针对具有四路执行机构的阀控缸双位置闭环控制系统的特点,根据电液比例控制技术的基本理论,从流体力学的流量方程、连续性方程、力平衡方程入手,基于经典传递函数法建立了电液比例阀控非对称液压缸系统数学模型.借助Matlab仿真软件,采用频域分析方法证明系统的稳定性,并将该模型在Simlink环境下建立了闭环控制系统,实现了电液比例调平控制系统的动态仿真与分析.
該文針對具有四路執行機構的閥控缸雙位置閉環控製繫統的特點,根據電液比例控製技術的基本理論,從流體力學的流量方程、連續性方程、力平衡方程入手,基于經典傳遞函數法建立瞭電液比例閥控非對稱液壓缸繫統數學模型.藉助Matlab倣真軟件,採用頻域分析方法證明繫統的穩定性,併將該模型在Simlink環境下建立瞭閉環控製繫統,實現瞭電液比例調平控製繫統的動態倣真與分析.
해문침대구유사로집행궤구적벌공항쌍위치폐배공제계통적특점,근거전액비례공제기술적기본이론,종류체역학적류량방정、련속성방정、력평형방정입수,기우경전전체함수법건립료전액비례벌공비대칭액압항계통수학모형.차조Matlab방진연건,채용빈역분석방법증명계통적은정성,병장해모형재Simlink배경하건립료폐배공제계통,실현료전액비례조평공제계통적동태방진여분석.
The main objective of this dissertation is to develop a valve-controlled cylinder double positioning closed-loop control system with four-channel actuators,electro-hydraulic proportional valve-controlled cylinder system mathematical model is built according to classi-cal transfer function based on electro-hydraulic proportional control theory, which found from hydro-dynamics flow equation,continuity equation and force equilibrium equation. In virtue of Matlab software, the system is proven to be stable using frequently analysis. Besides, electro-hydraulic closed-loop control is built under the condition of Simulink, which makes it dynamic simulation and analysis come true.