The results showed that the buckling configuration was helical curve for the gravitational tubular under the axial compressive force and torque.
结果表明，受压扭组合作用的有重管柱的屈曲构型为上疏下密的螺旋曲线。
In the problem of how to judge distortional buckling, a good method is use load-axial displacement curve.
在畸变屈曲的判断标准的问题上，可以采用荷载—轴向位移法，亦可以采用荷载—横向应变法。
In the paper, the formulas of the critical buckling time and stress distribution in unsupported wall region of curve part are presented.
进一步推导了曲面零件悬空区上的应力分布及临界失稳公式。
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