Research on Reliability Design of Automobile Structure Facing Variable Uncertainty
Aiming at the lightweight design of automobile structure,a reliability design method of Automobile Structure Consid-ering Uncertain manufacturing accuracy is proposed.Firstly,the main design variables are regarded as interval variables and other design parameters are regarded as probability values.On this basis,the reliability design method with uncertain manufac-turing accuracy of automobile structure is established by using the transformation method of interval model and the decoupling strategy of probability model.Through the analysis of lightweight optimization examples of classical cantilever beam and parking robot frame,the optimal solution and maximum allowable deviation range under different reliability requirements are obtained,which verifies the effectiveness of this research method.The optimal design results show that the optimal variables and the corre-sponding maximum allowable deviation range can be obtained under acceptable manufacturing conditions.By properly increas-ing the deviation range of design variables,the requirements for manufacturing accuracy can be reduced,so as to reduce the manufacturing cost.
NETL
NSTL
万方数据
维普
