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本文以实物试验为基础,以理论分析为依据,全面分析了两级高压减压阀静动态特性。在静态分析中,采用隐函数求导法求取该减压阀输出压力对各干扰量的偏导致,并由此作出静态特性曲线。在动态特性分析中,先后采用频率法,电子模拟法,状态空间法。文中在非线性状态方程建立的基础上,应用变步长的Runge-Kutta 法编制计算程序,在TQ—16数字计算机上求解不同工作点,不同干抗量增量,不同结构参数两级高压减压阀非线性动态特性曲线,并结合实物试验提出了一些有价值的结论。在频率分析中,还介绍一种新的简化复杂方框图求解系统开环,闭环传递函效的方法,可供参考。
Based on the physical test and theoretical analysis, this paper comprehensively analyzes the static and dynamic characteristics of two-stage high-pressure relief valve. In the static analysis, using the implicit function derivation method to obtain the output pressure of the pressure reducing valve on the partial interference caused by the partial, and thus make the static characteristic curve. In the dynamic characteristics of the analysis, has adopted the frequency method, electronic simulation method, state space method. Based on the nonlinear equation of state, the Runge-Kutta method with variable step size is used to program. The TQ-16 digital computer is used to solve the problems of different operating points, different increment of dry mass, Pressure valve nonlinear dynamic curve, combined with physical test made some valuable conclusions. In the frequency analysis, we also introduce a new method to solve the open-loop and closed-loop transfer function of the system by simplifying the complex block diagram for reference.