Comparative analysis of static and vibration characteristics of glass fiber reinforced epoxy mono composite leaf spring and conventional steel leaf spring

Journal of Low Frequency Noise, Vibration and Active Control Pub Date : 2024-06-04 DOI:10.1177/14613484241257077

Divya Gs, J. M. Solomon, Mahesh Br, Isaac Joshua Ramesh Lalvani J

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Abstract

Leaf springs play a vital role in heavy-duty vehicles by offering substantial load support, durability, and convenient maintenance. Lightweight leaf springs enhance vehicle performance, offering benefits like improved fuel efficiency and a smoother ride. Glass fiber reinforced composites enhance fuel efficiency and durability, providing corrosion resistance. Their design flexibility improves ride comfort, and damping properties enhance vehicle stability. The examination conducted through finite element analysis, utilizing ANSYS software, demonstrated a substantial 75.32% decrease in weight for the E-Glass-Epoxy composite leaf spring (GECLS), affirming its efficacy in enhancing strength, reducing weight, and enhancing stiffness. This underscores its superiority as a viable alternative to traditional steel leaf springs (SLS) in vehicular applications. The mono-GECLS exhibited a natural frequency that was found to be 1.9 times higher than that observed in the traditional SLS. It indicates the potential to mitigate resonance issues. After analysing the SLS and GECLS using ANSYS, it was observed that the GECLS exhibits greater values in deflection, natural frequency, and strain energy, measuring 4.659 mm, 29.98 Hz, and 440.68 mJ, respectively, compared to its steel counterpart. Conversely, the SLS demonstrates elevated values in stress, mass, and density, with readings of 283.84 MPa, 3.7695 kg, and 5920 kg/m³, respectively.

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玻璃纤维增强环氧树脂单体复合材料板簧与传统钢板簧静态和振动特性的对比分析

板簧在重型车辆中起着至关重要的作用，它能提供强大的载荷支撑、耐用性和方便的维护。轻质板簧可提高车辆性能，提供更高的燃油效率和更平稳的行驶性能。玻璃纤维增强复合材料提高了燃油效率和耐用性，并具有耐腐蚀性。其设计灵活性提高了乘坐舒适性，阻尼特性增强了车辆稳定性。利用 ANSYS 软件进行的有限元分析表明，E-玻璃纤维-环氧树脂复合材料板簧（GECLS）的重量大幅减轻了 75.32%，肯定了其在增强强度、减轻重量和提高刚度方面的功效。这凸显了它在车辆应用中替代传统钢板弹簧（SLS）的优越性。研究发现，单 GECLS 的固有频率是传统 SLS 的 1.9 倍。这表明它具有缓解共振问题的潜力。使用 ANSYS 对 SLS 和 GECLS 进行分析后发现，GECLS 在挠度、固有频率和应变能方面的数值更大，分别为 4.659 mm、29.98 Hz 和 440.68 mJ。相反，SLS 的应力、质量和密度值较高，分别为 283.84 兆帕、3.7695 千克和 5920 千克/立方米。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Low Frequency Noise, Vibration and Active Control

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