结构轴力—扭转屈曲变形中的精确动力刚度

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在结构力学的分析中,提出一个动态的轴向一扭转屈曲理论。考虑轴力和扭矩引起的二阶效应,给出固定的自然边界弯矩和力,以确保互等定理中动力刚度矩阵的对称性。在第一次幂级数展开时就包括了精确的动力刚度矩阵,可以很方便地对广义分布的轴力进行分析。结果指出:由于收敛的问题,可能无法对非均匀截面进行有效分析。同时对由于振动频率、轴向力和扭矩引起的交互式图表也进行了详细的研究。
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