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本文将状态空间分析方法运用于变推力液体火箭发动机系统的动态特性分析,导出了一组描述所述变推力液体火箭发动机动态过程的状态方程。文中提出了求解该系统方程的一种有效的数值方法,理论解与实验数据得到了满意的符合。做为变推力液体火箭发动机系统分析的初步结果,在文中分析了几个重要的工作参数对所述发动机系统动态特性的影响。
In this paper, the state space analysis method is applied to the dynamic characteristics analysis of variable thrust liquid propellant rocket engine system. A set of state equations describing the dynamic process of the liquid propellant rocket engine are derived. In this paper, an effective numerical method for solving the system equations is proposed. The theoretical solution and the experimental data are in good agreement. As a preliminary result of the system analysis of variable thrust liquid propellant rocket engine, the influence of several important working parameters on the dynamic characteristics of the engine system is analyzed in this paper.