基于ＡＮＳＹＳ的二维发动机风扇盘结构应力分析方法研究.

Typical three-wheel disk structure was chosen in order to improve the accuracy of the stress dis-tribution of 2D finite element model of the engine fan disk.Three-wheel fan disk structure of 3D finite ele-ment modeling was completed by using ANSYS 12.0.And the three-wheel fan disk of 2D axisymmetric fi-nite element model was established.The non axisymmetric load was decomposed into Fourier series.Solu-tion of radial stress,circumferential stress and equivalent stress was done subsequently.Compared with typ-ical 2D analysis load,2D non axisymmetric load and 3D analysis load show that the stress distribution of 2D model applying the uniform load is far away from the stress distribution of 3D model,and the stress dis-tribution of 2D model applying the non axisymmetric load was close to the stress distribution of 3D model. Compared with applying the uniform load,this method can improve the accuracy of the stress distribution of 2D finite element model of the engine fan disk. [ABSTRACT FROM AUTHOR]