Analysis of Vibration of Rocket Launching SystemCaused by Gas Jet

According to the results of finite element analysis,the experimental arrangement of measuring points is determined,and values of rocket gas jet impact pressure changing over time is measured;deal with the experimental data for later process,the linear formula of the impact pressure is derived. Determined the reasonable loading method,and at a 56 degree angle condition,the vibration characteristics of dynamic model further is studied.The method of impact pressure has reference significance to innovative design the analysis of other weapon systems.