车辆工程 外文资料

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Composite Structures 60 (2003) 317–325 www.elsevier.com/locate/compstruct  

Analysis and optimization of a composite leaf spring Mahmood M. Shokrieh *, Davood Rezaei
Composites Research Laboratory, Department of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran 16844, Iran
Abstract
A four-leaf steel spring used in the rear suspension system of light vehicles is analyzed using ANSYS V5.4 software. The finite element results showing stresses and deflections verified the existing analytical and experimental solutions. Using the results of the steel leaf spring, a composite one made from fiberglass with epoxy resin is designed and optimized using ANSYS. Main conside¬ration is given to the optimization of the spring geometry. The objective was to obtain a spring with minimum weight that is capable of carrying given static external forces without failure. The design constraints were stresses (Tsai–Wu failure criterion) and dis¬placements. The results showed that an optimum spring width decreases hyperbolically and the thickness increases linearly from the spring eyes towards the axle seat. Compared to the steel spring, the optimized composite spring has stresses that are much lower, the natural frequency is higher and the spring weight without eye units is nearly 80% lower.

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关于您提供的资料，这是一篇关于复合叶片弹簧的分析与优化研究的论文，由Mahmood M Shokrieh和Davood Rezaei在伊朗大学科学与机械工程学院复合材料实验室发表。该论文研究了复合叶片弹簧的结构分析及其优化方法，属于车辆工程领域的重要参考资料。建议深入了解其研究背景、理论模型、试验方法和结果分析，有助于对复合叶片弹簧的设计和性能优化有更深入的理解。如需获取更多相关资料或进行深入研究，请通过正规渠道购买或访问相关数据库。