陆基火箭导弹发射动力学分析中基础的建模

Modeling of the Bases in Launching Dynamical Analysis for Terrestrial Rockets or Missiles

在某些火箭导弹武器系统的陆基发射过程中,由于发射装置对陆基的强冲击作用,使土壤(包括混凝土)表现出复杂的弹性和塑性,不能用简单的线性模型来描述。文中建立了适用于陆基发射的各类土壤及混凝土的非线性弹塑性动本构模型,并给出了模型参数的具体确定方法,试验结果证明了模型的有效性。

During the terrestrial launching process of some rocket or missile weapon systems, because of the strong shock of launchers on the land, the soil (including concrete) behaves both elastically and plastically simultaneously, which can not be described using linear model. Nonlinear elastic and plastic dynamic constitutive models have been constructed suitable for all kinds of soil or concrete on which the launchers act. The determination methods of the model parameters were also given. At last, the rationality of the models has been illustrated by the experimental results.