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目的 计算火箭弹内力和变形． 方法 先计算单位力对火箭弹整体内力和变形的影响函数， 然后计算在外部气动力作用下的内力和变形． 结果 推导出了火箭弹在横向力作用下的影响函数． 结论 影响函数是对结构弹性特性的最明显的描述， 其结果可直接应用于强度、刚度和气动弹性稳定性的计算中
The purpose of calculating rocket internal forces and deformation. The method first calculates the influence function of unit force on the overall internal force and deformation of the rocket, and then calculates the internal force and deformation under the action of external aerodynamic force. The result deduces the influence function of rockets under lateral force. Conclusion The influence function is the most obvious description of the structural elastic properties and the results can be directly applied to the calculation of strength, stiffness and aeroelastic stability