平面环形薄板的扭转应力分析与应用

Analysis and application of torsion stress on planar annular sheet

针对平面环形薄板受扭转(或剪切)时的载荷情况,在极坐标系中进行了应力计算,得出了非常简明的结论,并且应用ANSYS软件对该结论进行了校核。将空间环形薄板受相似载荷的情形下的应力分布与该空间问题简化为平面问题后的应力分布进行对比后得知,空间环形薄板的内轴面固定时应力也可采用该结论进行近似计算,从而极大地简化了应力计算工作。

In the light of the load situations when the planar annular sheet is under torsion or shear stress, the stresses are calculatedin polar coordinate system and a simple conclusion was made which is verified with ANSYS software.Stress distributions are comparedwhen the spatial annular thin sheet is under similar loads and when the spatial sheet is replaced by a planar sheet. It is concluded thatstresses ofthe spatial annular sheet with itsinner axial surface fixed could be calculated in the same rule, thus greatly simplifying thecalculations of stresses.