Journal
POLYMER COMPOSITES
Volume 42, Issue 1, Pages 253-270Publisher
WILEY
DOI: 10.1002/pc.25822
Keywords
carbon; aluminum assembled wheel; grey relational analysis; multi-objective integrated optimization; tapered CFRP rim
Categories
Funding
- Jilin University Jointly Sponsor Special Foundation [SXGJSF2017-2-1-5]
- National Natural Science Foundation of China [51475201]
- Jilin Province [SXGJSF2017-2-1-5]
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An optimization framework for tapered CFRP rim structure was established, achieving weight saving of 17.2% and meeting standard requirements through physical tests. Multiple optimization methods were used in the design and manufacturing process.
A multi-objective integrated optimization framework that considers the manufacturing process in the design of a tapered carbon-fiber-reinforced polymer (CFRP) rim structure was established. Firstly, the three-zone symmetrically stacked CFRP rim structure was proposed and modeled. The bending and radial fatigue and 13 degrees impact of the carbon/aluminum-assembled wheel composed of CFRP rim and aluminum alloy spoke were analysed. Coupling lay-up thickness, sequence and angle as design variables, multi-objective integrated optimization design for the tapered CFRP rim structure was performed through radial basis function neural network surrogate model combined with an elitist non-dominated sorting genetic algorithm approach. Pareto-optimal solutions were obtained, and the trade-off solution was selected through grey relational analysis coupled with entropy weighting method. Finally, the tapered CFRP rim was manufactured through molding and autoclave forming technology. The CFRP rim has a weight saving of 17.2% compared with the previously developed forged magnesium alloy rim of the same size. The bending and radial fatigue and 13 degrees impact performance of the assembled wheel were then validated by corresponding physical test, results of which met GB 36581-2018 standard.
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