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Fatigue reliability design of composite leaf springs based on ply scheme optimization

机译：基于层板方案优化的复合板簧疲劳可靠性设计

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The study of composite leaf springs has been popular in automotive light weighting. Particularly, the research on the fatigue reliability of composite leaf springs is crucial. This paper proposed the fatigue law inference of the parabolic composite leaf spring, which was validated by fatigue bench tests. On the bases of the ply scheme design method and the sandwich unit concept, the non-continuous layer section and the stacking order were presented. The stacking sequence was optimized using Genetic Algorithm. The production of composite leaf spring samples, on which the fatigue bench test was conducted, was based on the optimized ply scheme. Results indicate that the fatigue life of composite leaf springs can be improved by using the proposed ply scheme design method. (C) 2017 Elsevier Ltd. All rights reserved.
机译：复合钢板弹簧的研究在汽车轻量化中很受欢迎。特别地，研究复合板簧的疲劳可靠性至关重要。本文提出了抛物线形复合板簧的疲劳定律推论，并通过疲劳试验台进行了验证。在层方案设计方法和三明治单元概念的基础上，提出了非连续层截面和堆叠顺序。使用遗传算法优化了堆叠顺序。进行疲劳试验的复合板簧样品的生产基于优化的层板方案。结果表明，采用所提出的层板方案设计方法可以改善复合板簧的疲劳寿命。 （C）2017 Elsevier Ltd.保留所有权利。

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