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- Title
The anti-fatigue lightweight design of heavy tractor frame based on a modified decision method.
- Authors
Zhang, Xiaopeng; Wang, Dengfeng; Kong, Dewen; Huang, Bingtong; Zhang, Zifeng; He, Yang
- Abstract
This paper proposes a modified preference selection index (MPSI) to improve the efficiency and reliability of the multi-criteria decision-making process. MPSI absorbs the high efficiency of the preference selection index (PSI) and enhances the anti-interference ability of some performance indicators. Moreover, a lightweight optimization method based on multi-performance is proposed, combining Hammersley, the radial basis function neural networks-response surface method (RBFNN-RSM), and the non-dominated sorting genetic algorithm-II (NSGA-II) and MPSI. First, the finite element model and rigid-flexible coupled virtual prototype model are established and verified and the fatigue life of the original frame is calculated. Second, the size and shape of the frame were taken as variables, and the mass, root mean square stress, and life were taken as objectives. The experimental scheme is determined, and the RBFNN-RSM hybrid surrogate model and NSGA-II are used to find the optimal solution set. Finally, the optimal solution is determined using the PSI, principal component analysis-gray relational analysis (P-GRA), and MPSI. The results show that MPSI has higher reliability than PSI; the MPSI has higher efficiency than P-GRA.
- Publication
Structural & Multidisciplinary Optimization, 2022, Vol 65, Issue 10, p1
- ISSN
1615-147X
- Publication type
Article
- DOI
10.1007/s00158-022-03385-9