Aggarwal Shivam, Kumar Krishan, Aggarwal M L
Department of Mechanical Engineering, JCBUSTYMCA, Faridabad, Haryana, 121006, India.
Sci Rep. 2024 Aug 29;14(1):20126. doi: 10.1038/s41598-024-67616-3.
Leaf springs are designed to bear loads as well as shocks in automotive vehicles. Two leaves of glass fiber-reinforced composites (GFRCs) of various shapes sandwiched between steel plates were analyzed for application in a minitruck. Computer-aided engineering analysis was performed for five different types of GFRC material leaf springs: flat leaf, flat and parabolic leaf, both parabolic leaf, both parabolic leaf springs with aluminium alloy bushes at the eye-end and spring steel multi-leaf springs. A silencer pad was used in the parabolic leaf spring to reduce delamination and vibration at contact points of the mating leaf. The various shapes and combinations of leaves provided varying parameters, namely, the deformation, maximum equivalent strain, maximum equivalent stress and fatigue life. The CAE results showed that compared with the other combinations, the flat leaf and parabolic leaf combinations provided the maximum equivalent strain, maximum equivalent stress and fatigue life.
钢板弹簧旨在承受汽车的载荷以及冲击。对夹在钢板之间的两片不同形状的玻璃纤维增强复合材料（GFRC）进行了分析，以用于小型卡车。对五种不同类型的GFRC材料钢板弹簧进行了计算机辅助工程分析：平板弹簧、平板和抛物线形叶片弹簧、双抛物线形叶片弹簧、眼端带有铝合金衬套的双抛物线形叶片弹簧以及弹簧钢多片弹簧。在抛物线形叶片弹簧中使用了消音垫，以减少配对叶片接触点处的分层和振动。叶片的各种形状和组合提供了不同的参数，即变形、最大等效应变、最大等效应力和疲劳寿命。CAE结果表明，与其他组合相比，平板和抛物线形叶片组合提供了最大等效应变、最大等效应力和疲劳寿命。
