讨论了此类动力屈曲问题中横向惯性效应的影响；
The effect of lateral inertia on the dynamic buckling is taken into consideration.
本文研究受静力预加载的弹性结构在冲击载荷下的屈曲问题。
The impact buckling of static Preloaded elastic structures subjected to impact loading is studied.
以锥形桩为例，用能量法对变截面桩的屈曲问题进行了深入研究。
With the example of taped pile, the buckling problem of variable section piles was analyzed with the energy method.
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