细长式战术导弹舱段连接面刚度识别研究

Identification of Slender Missile Cabin Joint Rigidity

文中详细阐述了细长式战术导弹舱段连接面刚度识别的理论与方法。首先采用含接头的链式粱结构建立导弹的集中质量模型,推导了考虑接头影响的 RICCATI 传递矩阵,然后使用该方法计算导弹的理论固有特性值,采用理论值与实验值拟合的方法建立连接面刚度识别的最优化模型,用共轭梯度法求解该优化问题,得到导弹舱段连接面刚度。编制了相应程序,并已应用于实践,证明该方法具有工程使用价值。

The theory and means for slender missile cabin joint rigidity identification is given.A chain beam model including joint is implanted to describe the missile.Then calculate the theoretic nature frequency with RICCATI considering the effect of joint rigidity.Modeling the value with test value through optimization means and solving the problem by conjugate grads the joint rigidity is gotten.Also a relative program finished and applied in the engineering.It indicated the method had practicality value.