In the analysis of the elastic tripping of the stiffener, the critical stress under this mode of failure is derived by using the energy method and the principle of least potential energy.

对于加筋板中筋的侧倾失稳，则通过能量法推导加强筋侧倾失稳时的总势能泛函，利用最小势能原理求解出此失稳模式下的临界应力。

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With the principle of the minimum potential energy, an analytical solution for the lateral critical bucking Lord of tied-arch Bridges is studied.

利用最小势能原理推导了肋拱桥结构在外荷载作用下侧倾稳定临界力的近似解析解。

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Calculation method of characteristic parameters for pure substance, such as critical constant, centric factor, and constants of potential energy are put forward.

介绍纯物质特性参数包括临界常数、偏心因子和势能常数的计算方法。

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