考虑剪切影响时结构的动力稳定分析

Dynamic Stability Analysis of Constructions Taking Account of the Influence of Shearing Stress

对大型结构考虑剪切影响及阻尼产生的几何刚度矩阵，在纵向载荷作用下的动力稳定问题进行了较详细的分析。给出了计算动力不稳定区域和激发载荷的方法。并把有限元和解析法结合在一起，利用二次摄动方法成功地获得纵向载荷作用的动力稳定问题的解。

Allowing for the influence of shearing stress and geometric stiffness matrix inducedd by damping on big constructions. It describes the dynamic stability under lengthway loads in detail and put forward the methods for calculating for calculating dynamic unstable sections and stimulating loads, combining the limited element with analytic method. A solution of dynamic stability is achieved by quadraic dynamic method.