The vibration characteristic of launch tube in launching state can reflect the dynamic performance and the structural rationality of launch system, and it will influence the shooting precision.
We illustrate the importance of noise reduction of underwater weapon launch tube, and summarize the classification of underwater launch tube and the main sources of launching noise.
Taking the impact jet flow field of individual rocket as research object, this paper calculates the jet flow field near the back of the launchingtube by using the numerical simulation method.