三棱形的轴毂联接有限元分析

he polygonal profiles shaft-hub coupling is extensively used on military weapons and F1 cars. In this paper, the author uses the Pro/Engineer software for entity modeling of shaft-hub with 3-lobe profile. And the analysis object is the maximum magnitude of interference in the transitional fit of shaft-hub with 3-lobe profile. The ANSYS software’s static analysis module is used for analyzing the variation of the highly nonlinear surface to surface contact stress and change of the twisting stress, which arises from different load during the machine’s running . At last, the stress and the strain of shaft-hub with 3-lobe profile graph are obtained. The mechanical superiority of shaft-hub with 3-lobe profile connection way is proved. And so on, it provide theoretical basis for design and improvement of shaft-hub couplings with 3-lobe profile.