一前言导弹在空中飞行时的结构弹性振动,对于全弹动态的影响已成为产品设计时必须考虑的问题。为了保证产品设计有足够的价值,在初步设计时必须考虑弹性结构的动力特性。如果希望得到ω(即自振频率)和它相应的振型曲线,必须考虑 EI 的分布(即刚度)及μ分布 I. INTRODUCTION The elastic vibration of a missile during its flight over the air has become a problem that must be considered in product design for the impact of full bombs. In order to ensure that the product design has enough value, the dynamic characteristics of the elastic structure must be considered in the preliminary design. If one wants to obtain ω (ie natural frequency) and its corresponding mode shape curve, the EI distribution (ie stiffness) and μ distribution must be taken into account