四轴液压加载试验台双泵恒压及流量协调控制稳定性研究OA
Stability Analysis of Constant Pressure and Flow Coordinated Control in a Dual-pump System for Four-axis Hydraulic Loading Test Benches
深入分析四轴液压加载试验台双泵恒压及流量协调控制系统的控制机制,建立系统的方块图数学模型,对方块图进行合理简化,推导出系统开环传递函数.根据Bode稳定判据推导出系统的稳定性条件,揭示影响系统稳定性的关键因素并分析其对系统稳定性的影响规律.结合所研制双泵供油重型车辆传动桥四轴液压加载试验台的实际参数及恒压变量泵产品的样本数据,搭建系统AMESim仿真模型,相同工况下,仿真曲线与试验曲线高度一致,验证了仿真模型的准确性.基于系统仿真模型,对所提出的双泵恒压及流量协调控制系统稳定条件进行了充分的验证.
An in-depth analysis of the control mechanism is conducted.A mathematical model of the system is developed using the block diagram method,followed by reasonable simplification of the block dia-gram,from which the open-loop transfer function is derived.Based on the Bode stability criterion,the sta-bility conditions for the system are established,and the key factors influencing system stability are identified and analyzed.For the developed four-axle hydraulic loading test bench utilizing this dual-pump supply sys-tem,an AMESim simulation model is built using actual system parameters.Under identical operating con-ditions,the simulation results closely match the experimental curves,validating the accuracy of the simula-tion model.Using this validated model,the proposed stability conditions are thoroughly verified.
齐潘国;迟帅;郝清旭;张新;朴明波
辽宁工程技术大学机械工程学院,阜新,123000辽宁工程技术大学机械工程学院,阜新,123000辽宁工程技术大学机械工程学院,阜新,123000北京金炫业科技有限公司,北京,102200辽宁工程技术大学机械工程学院,阜新,123000
机械制造
四轴液压加载试验台双泵恒压及流量协调控制Bode稳定判据AMESim仿真
four-axle hydraulic loading test benchdual-pump constant-pressure and flow-coordinated controlBode stability criterionAMESim simulation
《中国机械工程》 2026 (8)
1840-1851,1864,13
国家自然科学基金(51674134)辽宁省教育厅项目(LJ232410147023)辽宁省教育厅服务地方项目(LJ212410147035)
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