Open AccessMulti-objective Lightweight Design of Bracket Based on Sensitivity Analysis
Author(s) -
Zhounan Guo,
Bingzhe Wang,
Fei Zhao
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/526/1/012139
Subject(s) - bracket , sensitivity (control systems) , finite element method , optimal design , computer science , structural engineering , set (abstract data type) , research object , deformation (meteorology) , static analysis , mathematical optimization , mathematics , engineering , materials science , composite material , machine learning , electronic engineering , regional science , programming language , geography
This paper takes a bracket as the research object. In order to realize the lightweight design on the basis of ensuring its static characteristics, use the sensitivity analysis method to analyze the magnitude of the impact of key dimensions on the design of the bracket structure; Combined with the multi-objective optimization design method, the lightest mass, maximum deformation and maximum stress as the optimization objectives, to obtain a set of optimal size values. Finite element analysis of the static characteristics of the structure before and after optimization. After optimization, the weight of the bracket decreased by 2.35%, and the performance was also improved. The results show that combining sensitivity analysis and multi-objective optimization is an effective way to design lightweight structures.