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以动力学、声学和信号系统分析等基础理论为依据,通过大量的实测数据,揭示了固体火箭发动机静止试验的全过程中在地面和高空模拟两种试验状态下,发动机壳体振动特性与发动机工作时产生的喷气噪声两者之间的内在关系。
Based on the basic theories of dynamics, acoustics and signal system analysis and so on, a large number of measured data are used to reveal the relationship between the vibration characteristics of the engine case and the engine performance under both experimental conditions of ground and altitude simulation in the whole process of the static rocket engine static test. The inner relationship between the jet noise generated during work.