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本文对气液螺旋压力机的提升过程作了动力学分析,建立了提升过程的数学模型,编制了用四阶Runge-Kutta方法直接求解状态方程组的仿真程序.为解决“病态方程”的问题,在仿真程序中采用了“状态分段法”,使计算工作量显著减少,程序运行时间明显缩短.对630kN气液螺旋压力机的参数进行了仿真计算和实测,其结果表明,仿真误差小于10%,能满足工程计算要求.
In this paper, the dynamic analysis of the lifting process of the gas-liquid screw press is made, the mathematical model of the lifting process is established, and the simulation program of the state equations is solved directly by using the fourth-order Runge-Kutta method.In order to solve the problem of “pathological equation” , The “state segmentation method” was adopted in the simulation program, which reduced the calculation workload significantly and the program running time obviously shortened.The parameters of the 630kN gas-liquid screw press were simulated and measured.The results showed that the simulation error was less than 10%, to meet the engineering calculation requirements.