Abstract: Through the dynamic characteristic and the dynamic response analysis of composites wing, the analysing methods and steps, the further treatment for calculated result and the improvement of design, etc, are presented in this paper. Through the dynamic characteristic analysis of the structure, the lacal vibration is found during the design of layout. The weak parts of the design are eliminated because the lamina design of the corresponding parts are improved. Through the dynamic respose analysis for launching missile, response displacement and response stress are obtained. The three kinds of situation of launching missiles concerned with outboard wing, mid wing and inner wing are compared and the value of dynamic response of the most serious situation is given. In the end, the result of dynamic strength is determined.

Key words: composite, vibration model, dynamic response, dynamic strength