Title:
EFFICIENT AUTOMOBILE SIDE COLLISION SAFETY AND RELIABILITY DESIGN OPTIMIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/217975
Kind Code:
A1
Abstract:
An efficient automobile side collision safety and reliability design optimization method, relating to the technical field of automobile reliability design optimization. The reliability analysis and deterministic optimization in the method are performed in sequence. The method comprises: calculating first four-order moments of a response by using a univariate dimension reduction method, and calculating a PDF of the response according to the maximum entropy principle; then performing deterministic optimization, calculating a translation distance by using a function moving method based on a response PDF, constructing an equivalent deterministic optimization model and calculating, and obtaining a new optimal solution; taking the new optimal solution as input, repeatedly performing the reliability analysis and deterministic optimization processes till convergence conditions are satisfied, and finally obtaining the optimal solution of the original optimization model. According to the method, the reliability analysis and the optimization design are decoupled by utilizing the proposed function moving method based on the response PDF, so that the efficiency is improved; reliability analysis uses information of the first four-order moments of the response, higher precision can be obtained, and the method has the dual characteristics of high precision and high efficiency.
Inventors:
ZHANG ZHE (CN)
DENG WEI (CN)
JIANG CHAO (CN)
DENG WEI (CN)
JIANG CHAO (CN)
Application Number:
PCT/CN2020/111111
Publication Date:
November 04, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
UNIV HUNAN (CN)
International Classes:
G06F30/15
Foreign References:
| CN107944078A | 2018-04-20 | |||
| CN102945327A | 2013-02-27 | |||
| US20050004833A1 | 2005-01-06 |
Attorney, Agent or Firm:
CHANGSHA WESHINE INTELLECTUAL PROPERTY AGENCY (CN)
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