Optimizing deep drawing parameters for power battery shells through the integration of feature-weighted SVM and genetic algorithm

Optimizing deep drawing parameters for power battery shells through the integration of feature-weighted SVM and genetic algorithm

WANG Ruoda, SUN Yu, WU Kai, WANG Yu

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Abstract. Deep drawing is one of the main forming processes for battery shells, and the rational setting of its process parameters directly affects the quality of the formation. Selecting the optimal deep drawing process parameters requires repeated trials and simulations, which increases the cost, reduces the efficiency, and poses a significant challenge to enterprises. To address this challenge, we focus on the first deep drawing process of the battery shell, proposing a parameter optimization method for battery shell deep drawing based on a Feature-Weighted Support Vector Machine (FWSVM) and Genetic Algorithms (GA). Our aim is twofold: on the one hand, to establish an agent model for finite element analysis of the deep drawing process using the FWSVM technique to enhance prediction accuracy and save simulation time; on the other hand, to derive optimal deep drawing process parameters using GA. The experimental results indicate that the FWSVM can accurately establish the relationship between process input/output parameters, and the optimized process parameters achieved through this method can realize the minimum thinning rate and convex mold contact force.

Keywords
Deep Drawing, Finite Element Analysis, Feature-Weighted Support Vector Machine, Optimization, Power Battery Shells

Published online 9/15/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: WANG Ruoda, SUN Yu, WU Kai, WANG Yu, Optimizing deep drawing parameters for power battery shells through the integration of feature-weighted SVM and genetic algorithm, Materials Research Proceedings, Vol. 44, pp 528-537, 2024

DOI: https://doi.org/10.21741/9781644903254-57

The article was published as article 57 of the book Metal Forming 2024

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] T.D. Nguyen, J. Deng, B. Robert, W. Chen, T. Siegmund, Deformation Behavior of Single Prismatic Battery Cell Cases and Cell Assemblies Loaded by Internal Pressure, J. Electrochem. Energy Conversion Storage 18 (2021). https://doi.org/10.1115/1.4050101
[2] Q. Yu, Y. Nie, S. Peng, Y. Miao, C. Zhai, R. Zhang, J. Han, S. Zhao, M. Pecht, Evaluation of the safety standards system of power batteries for electric vehicles in China, Appl. Energy 349 (2023) 121674. https://doi.org/10.1016/j.apenergy.2023.121674
[3] S. Yaghoubi, F. Fereshteh-Saniee, An investigation on the effects of the process parameters of hydro-mechanical deep drawing on manufacturing high-quality bimetallic spherical-conical cups, Int. J. Adv. Manuf. Technol. 110 (2020) 1805–1818. https://doi.org/10.1007/s00170-020-05985-5
[4] R. Dwivedi, G. Agnihotri, Study of Deep Drawing Process Parameters, Materials Today: Proceedings 4 (2017) 820–826. https://doi.org/10.1016/j.matpr.2017.01.091
[5] M. Manoochehri, F. Kolahan, Integration of artificial neural network and simulated annealing algorithm to optimize deep drawing process, Int. J. Adv. Manuf. Technol. 73 (2014) 241–249. https://doi.org/10.1007/s00170-014-5788-5
[6] C.S. Park, T.W. Ku, B.S. Kang, S.M. Hwang, Process design and blank modification in the multistage rectangular deep drawing of an extreme aspect ratio, J. Mater. Process. Technol. 153–154 (2004) 778–784. https://doi.org/10.1016/j.jmatprotec.2004.04.306
[7] S. Yaghoubi, F. Fereshteh-Saniee, Optimization of the geometrical parameters for elevated temperature hydro-mechanical deep drawing process of 2024 aluminum alloy, Proceedings of the Institution of Mechanical Engineers, Part E: J. Process. Mech. Eng. 235 (2021) 151–161. https://doi.org/10.1177/0954408920949364
[8] C. Özek, E. Ünal, Optimization and Modeling of Angular Deep Drawing Process for Square Cups, Mater. Manuf. Process. 26 (2011) 1117–1125. https://doi.org/10.1080/10426914.2010.532526
[9] R. Padmanabhan, M.C. Oliveira, J.L. Alves, L.F. Menezes, Influence of process parameters on the deep drawing of stainless steel, Finite Elements in Analysis and Design 43 (2007) 1062–1067. https://doi.org/10.1016/j.finel.2007.06.011
[10] S.P. Boyd, L. Vandenberghe, Convex optimization, Cambridge University Press, Cambridge, UK ; New York, 2004