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本文应用能量法,推导出了两端铰支变截面压杆临界截荷,放大系数f的计算公式。从而,可简便地利用等截面匀质压杆的欧拉公式,乘以放大系数f,求出两端铰支变截面压杆的临界截荷值。
In this paper, the energy law is used to derive the formula of the critical load and the magnification factor f of the rod with variable cross sections. Therefore, the Euler formula of isosurface uniform pressure bar can be simply used and multiplied by the magnification factor f to obtain the critical intercept value of the hinge bar with variable cross section.