A simplified jacket is calculated as an example, the formulation and also the recommended failure function for column buckling are identified.
最后对一简单的导管架平台作了实例分析，给出了立柱屈曲的失效面模型，并证明了方法的有效性。
Process condition of upsetting shoulder was discussed and forming force was calculated based on column buckling theory. The die structure and working principle was introduced.
基于压杆稳定理论，探讨了该制件镦压凸肩的工艺条件，计算所需的工艺力，介绍其镦压成形模具的设计结构、工作原理。
Based on the theoretical analysis, the general buckling equation of semi-rigid frame column is deduced.
通过理论分析，推导了具有半刚性连接框架柱的一般屈曲方程。
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