Multi-objective Optimisation of Astragalus Kneading Mechanism Based on Response Surface Methodology
For astragalus kneading machine in the design process of the kneading mechanism strength and stiffness can not meet the design requirements of the problem,a multi-objective optimal design method combining sensitivity analysis and response surface modelling was adopted.Based on ANSYS WorkBench software,the mechanism was subjected to static analysis and response surface multi-objective optimisation design was carried out with the dimen-sional parameters of the key components as design variables and the stresses and deformations as objective functions to derive the optimal parameter combinations.The static analysis after optimisation shows that the maximum deforma-tion of the mechanism was 0.303 mm,the maximum stress was 40.356 MPa,and the strength and stiffness meet the design requirements.The test results show that the optimised part reduces the deformation of the whole kneading mechanism by 24.67％and the maximum stress by 69.32％.The feasibility and effectiveness of using response surface methodology multi-objective optimisation to optimise the design of this crank-slider kneading mechanism are demonstrated by the results.
万方数据
维普
