Structural Design And Dynamic Simulation Analysis Of A Total Aircraft Launch System

With the development of modern war and the experiential accumulation of rocket weapon research, the excellences of container launch technology for multi-tube rocket weapon are more and more obvious. This thesis combines with the pre-research requirements of a certain common-frame launch system, by means of multi-rigid-body dynamic theories and visual prototype technology, the research has been done on the initial designing of the common-frame launch system, launching characteristic simulation, the dynamic simulation of tracked vehicles, the analysis and calculation of rigidity and intensity of launch frame, thus some results are gained. The study has important significances and effects on the successful realization of common-frame launch technology for rocket weapon in our country. And weapon research level of our country is enhanced and broken through.Main research work in this thesis include as follow as: (1) Lagrange equations of the whole common-frame launch system are founded using muti-rigid-body dynamic theories, and the Three-dimensional models of common-frame launch system are founded using I-DEAS software. It makes foundation for further investigation. (2) Dynamic simulation is carried out when rocket and missile firing. Curves of initial displacement of direction pipe and curves of initial velocity of rocket projectile changing as time are obtained. It can provide a theory foundation for evaluating dynamic characteristics of common-frame launch system such as initial interference and improving its performance. (3) The dynamic simulation of tracked vehicles. In this thesis, initial designing and modeling is carried out, and mobilitying characteristic simulation for tracked vehicles is conduced. (4) The analysis and calculation of rigidity and intensity of launch frame is done using ANSYS software, the rigidity response numerical results with displacement, stress, and strain etc are gained.