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应用三维有限单元和导弹实体简化模型对一种战术导弹的结构振动特性进行分析，并运用ＡＮＳＹＳ有限元分析程序，计算得到了“自由固支”条件下，导弹竖立状态的固有模态，取得了与试验和数据基本一致的结果，证明了所建模型的正确性。进而对运输环境中导弹水平支承条件下的固有频率和振型进行了分析计算，所得结果为导弹的使用可靠性分析提供了依据。
The structural vibration characteristics of a tactical missile are analyzed by using the simplified finite element model of three-dimensional finite element and the missile, and the inherent mode of the erected state of the missile under the condition of “free fixed support” is calculated by using ANSYS finite element analysis program. The results that are basically consistent with the experiment and the data prove the correctness of the model. Then the natural frequencies and modes under the horizontal support of the missile in the transport environment are analyzed and calculated. The results provide the basis for the reliability analysis of the missile.