Analysis of Meshing Stiffness of Helical Gear Considering Angular Misalignment Error
Angular misalignment error is a common installation error in gearbox,which will lead to excessive local stress and high vibration noise among gear teeth.However,how to accurately predict the influence of Angular misalignment error on helical gear meshing transmission is a big problem.To solve this problem,an iterative model of meshing stiffness of helical gear is proposed based on slice method.The model takes into account the axial bending stiffness and torsional stiffness caused by Angular misalignment errors.The correctness of the proposed model is verified by finite element method.Based on this model,the effects of different Angular misalignment parameters and loads on meshing stiffness are studied.The results show that the meshing stiffness decreases with the increase of Angular misalignment.With the increase of load,the meshing stiff ness increases gradually.This study can provide theoretical support for stiffness calculation of angular misalignment error.
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