An efficient structural optimization approach for the modular automotive body conceptual design

Appropriate structural analysis and optimization methods are of great significance for automotive body in conceptual design stage. This paper proposes a mathematical simulation approach to promote the conceptual design of modular body-in-white (BIW) model fast and effectively, which is based on the...

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Bibliographic Details
Published in:Structural and multidisciplinary optimization Vol. 58; no. 3; pp. 1275 - 1289
Main Authors: Liu, Yu, Liu, Zijian, Qin, Huan, Zhong, Haolong, Lv, Cheng
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2018
Springer Nature B.V
Subjects:
Automotive bodies
Automotive engineering
Computational Mathematics and Numerical Analysis
Computer simulation
Conceptual design
Design optimization
Dynamic characteristics
Engineering
Engineering Design
Genetic algorithms
Industrial Application
Mathematical analysis
Mathematical models
Matrix methods
Modular design
Modular structures
Object oriented programming
Structural analysis
Theoretical and Applied Mechanics
Modular BIW structure
Conceptual design
Genetic algorithm
Cross-sectional size optimization
Method of reverberation ray matrix
ISSN:1615-147X, 1615-1488
Online Access:Get full text
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Summary:Appropriate structural analysis and optimization methods are of great significance for automotive body in conceptual design stage. This paper proposes a mathematical simulation approach to promote the conceptual design of modular body-in-white (BIW) model fast and effectively, which is based on the method of reverberation ray matrix (MRRM) and the genetic algorithm (GA). A simplified modular BIW conceptual model is used to predict early-stage static and dynamic characteristics, and a minimum mass of the BIW model is set as an optimization objective. Then the static and dynamic behaviors of auto-body are analyzed by the MRRM, and a cross-sectional size optimization model for the BIW structure is formulated and solved by the GA. Afterward, an object-oriented MATLAB toolbox is constructed to achieve the mathematical simulation method for the fast modeling analysis and the structural optimization processes of the modular BIW conceptual structure. Lastly, the validity of this structural optimization approach is demonstrated by a modular automotive body conceptual model.
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ISSN:1615-147X
1615-1488
DOI:10.1007/s00158-018-1949-8