This paper puts forth the calculating formula of the deflection caused by shear distortion, which has a reference value to the design of the main shaft of the machine tool.
本文给出了考虑剪切变形引起的挠度计算公式，对现代机床的主轴设计具有一定的指导意义。
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By modifying, the separation zone behind the shaft and turn loss at upwind side are all reduced. Modifying inlet maintains high pressure recovery, and the distortion index is reduced by 74% at most.
Results Obtained the distortion deformation, stress nephogram, section stress of femur neck and upside of femoral shaft of the femur under the bending moment and compressive load.