Multiproperties and multiobjective collaborative optimization design of a SUV hood

Huang Hui; Jia Huifang; Qiu Zufeng

doi:10.1117/12.3039782

28 August 2024 Multiproperties and multiobjective collaborative optimization design of a SUV hood

Huang Hui, Jia Huifang, Qiu Zufeng

Proceedings Volume 13251, Ninth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2024); 1325117 (2024) https://doi.org/10.1117/12.3039782
Event: 9th International Conference on Electromechanical Control Technology and Transportation (ICECTT 2024), 2024, Guilin, China

Abstract

Aiming at the question of whether the static and dynamic properties of door hood could meet the requirements. Firstly, the grid model of the hood was established based on finite element technology, all degrees of freedom of its mounting point were constrainsed, its natural frequency were 35.1Hz, 42.8Hz and 58.4Hz based on modal properties simulation, it didn't overlap with the excitation frequency range, the resonance and noise was avoided, so it could meet modal properties requirements. Secondly, the corresponding load were applied to four typical contact areas, the deformation of each position were obtained by quasi-static stiffness simulation, its maximum deformation was 4.764mm, it was less than the actual engineering requirement value, so it could meet stiffness properties requirements. Thirdly, the frequency response strength was simulated according to vibration excitation, so its displacement and stress distribution were obtained, its maximum stress was 172.0 MPa, it was less than the material yield value, the fatigue strength cracking would be avoided, so it could meet stiffness properties requirements. Lastly, its thickness was collaborative optimized based on multi-properties and multi-objective integration method by adopting non-dominated sorting genetic algorithm, its optimal structural parameters were obtained, the first order mode was 33.2 Hz, the maximum deformation of stiffness was 5.907 mm, its maximum vibration strength stress was 208.3 MPa, its static and dynamic properties could meet design requirements after optimization. Its weight was reduced by 8.42%, the lightweight were achieved.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Huang Hui, Jia Huifang, and Qiu Zufeng "Multiproperties and multiobjective collaborative optimization design of a SUV hood", Proc. SPIE 13251, Ninth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2024), 1325117 (28 August 2024); https://doi.org/10.1117/12.3039782

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KEYWORDS

Materials properties

Design

Deformation

Vibration

Finite element methods

Clouds

Mathematical optimization

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