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通过对液路耦联的多发动机系统动态特性仿真研究表明：多发动机开关机时水击对相互间性能影响比较大，若设计不合理，有可能导致异常关机。给出的动力学模型可以用于空间飞行器耦联多发动机系统的结构及工作模式设计和解释一些发动机试车现象。
The dynamic characteristics of multi-engine system with liquid coupling are studied. The results show that the impact of water hammer on the performance of multi-engine switch is relatively large. If the design is not reasonable, it may lead to abnormal shutdown. The given kinetic model can be used to design and explain the structure and working mode of the spacecraft-coupled multi-engine system and to explain some engine test phenomena.