当受拉杆件的应力达到屈服极限或强度极限时，将引起塑性变形或断裂。长度较小的受压短柱也有类似的现象，例如低碳碳钢短柱被压扁，铸铁短柱被压碎。这些都是由于强度不足引起的失效。
在模型中加入压杆稳定约束，使智能桁架结构更加稳定。
The constraint of press stability was added and the structure was more stable.
通过一个例子说明微分变换法在压杆稳定问题中的应用方法。
The application of the differential transformation method is demonstrated by an example for stability problems of columns.
尝试用动力分析的方法对压杆稳定问题进行理论分析与实验研究。
The paper trys to analyse stability of column by the method of dynamic analysis, deduces the formula of relation between axial compressive force and frequency of transverse vibration.
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