Firstly , with uniaxial symmetrical rectangle cross section , the warping displacement function and tangential displacement function under anti - symmetrical load are supposed . then taking shear deformation into account and with potential principle , the governing differential equation for distortion angle subjected to uniformly distributed distortion load is established 首先,以單軸對(duì)稱矩形截面薄壁桿件為研究對(duì)象,假設(shè)其在反對(duì)稱荷載作用下翹曲位移和切向位移的分布函數(shù),考慮剪切變形的影響,利用最小勢(shì)能原理建立單位均布畸變荷載作用下的畸變角微分方程。