missile-launcher coupling and system dynamic response for bare missile vertical thermal launch were mainly researched. Simplifying and equivalent modeling were discussed for track-based missile system. The theory analysis of miss
ile taking off was discussed. The rigid-flexible coupling multi-body dynamics model was created based on dynamics and finite software. The dynamics simulation and analysis were carried on for missile launch. The results were compared with result of the two kind models. The numerical simulation results indicate that the coupling is obvious between the missile and launcher during missile taking off. The vibration of system has influence on the taking off attitude. Vibration damping characteristics of launchers are suitable. The rigid-flexible coupling model could reflect the dynamic performance of missile launch well compared with the rigid model.
Key words: vertical thermal launch; coupling; taking off attitude; dynamics simulation

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