torsion constant

an analytical method is proposed for calculating free torsion constant of complicated thin-walled cross section from free torsion theory.

通过自由扭转理论推导出复杂薄壁箱梁断面的自由扭转惯性矩的计算方法；

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According to features of thick wire electrode ( diameter 1mm) ( aging bending deformation, loss lengthen, torsion deflection and protuberant deformation), weights constant tension mechanism, roller institutions and block pin parts were designed.

针对粗电极丝（直径特性（时效弯曲变形、损耗加长、扭转变形和突起变形），设计了砝码恒张力机构、辊压机构及挡销部件。

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Numerical Analysis of Free Torsion Constant for Complicated Thin-Walled Cross Section

复杂薄壁断面的自由扭转惯性矩的数值分析

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Comparing with the finite dement results, this method has quite accuracy to simply calculate free torsion constant.

结果表明，这是一种简单实用且精度较高的计算方法。

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