The Strength Analysis And Lightweight Design Of Dumper

This project came from the school-enterprise cooperation work,the main work was the strength analysis and lightweight design of the tipping machine.In this paper,a certain type of dumper had been studied,and the 3D geometric model was constructed with the help of computer aided analysis software;By analyzing the structural and load characteristics of it,constructed the mechanical model and determined the calculated operating conditions;by the aid of HyperWorks,established the FEM model for static analysis;For the load of different tipping angle(0°\15°\30°…)of multiple operating conditions(rated load\frozen load),analyzed the stress and strain in detail of the tipping machine structure,and assessed the static strength.Then,studied the lightweight design of the dumper structure on basis of the approximate model technology.For the purpose of construction of appropriate response surface approximation model,carried out a Latin hypercube test design and filtered design variables according to the main effect analysis,realizes the finite element simulation test;Created a Kriging model response surface,used adaptive response surface algorithm,realized the optimization design of thickness of the main structure of the dumper,and reduced the quality by 6.5%;At last,checked out the strength and stiffness condition of the optimized structure,validated the effectiveness of lightweight design.