Optimization Analysis of Gear Reliability Based on Improved Response Surface Methodology
In order to solve the problem that the safety factor introduced in the traditional gear reliability optimization process cannot accurately reflect the gear reliability level and the degree of influence of each parameter cannot be found in the analysis process,a reliability optimization analysis method based on the combination of improved response surface and finite element is proposed.Firstly,the improved response surface method is used to obtain the experimental design points,and the design matrix is established by ob-taining the experimental data through finite element software;secondly,the improved response surface equa-tions are established through MATLAB,and the goodness of fit of the equations is analyzed;finally,the ex-perimental data are imported into the reliability simulation module for reliability optimization simulation,and the gear reliability is obtained through Latin hypercube sampling.The experimental results show that the error of the improved response surface equation is comparable to that of the traditional response surface equation.The reliability of the optimized gear structure is improved by 6.35%compared to the pre-optimi-zation,the maximum equivalent force is reduced by 6.81%after optimization,and the mass is reduced by 2.12%.The reliability optimization of the improved response surface combined with the finite element method is the best.
gearreliability optimizationimproved response surfacefinite element
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