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前言本文讨论两级比例压力阀的动态响应及其优化问题。阀的数学模型通过液压网络分析法建立起来,是一个在状态空间中的多变量非线性系统。根据这一数学模型,进行了两级压力阀的计算机仿真和优化设计。文中提出了一种据以进行动态优化的目标函数,并讨论了目标函数对设计参数的敏感性及系统稳定性的约束问题。对阀的计算机仿真和优化是在Harris-800超级小型计算机上进行的。优化的结果使阀的动态性能获得了显著改善。对于初始参数不稳定的系统,经优化后也能保证系统的稳定性。
Preface This article discusses the dynamic response of a two-stage proportional pressure valve and its optimization problems. The mathematical model of valve is established by hydraulic network analysis and it is a multivariable nonlinear system in state space. According to this mathematical model, a two-stage pressure valve computer simulation and optimization design. In this paper, an objective function for dynamic optimization is proposed, and the sensitivity of the objective function to the design parameters and the constraints of system stability are discussed. Computer simulation and optimization of the valve was performed on a Harris-800 superminiature computer. The result of the optimization is a significant improvement in the dynamic performance of the valve. For the instability of the initial parameters of the system, the system can also be optimized to ensure stability.