【摘要】 为更好分析重型卡车平衡悬架钢板弹簧的性能,应用离散梁单元方法创建了某重型卡车平衡悬架钢板弹簧的多体动力学模型,解决了重型卡车平衡悬架钢板弹簧大变形、接触非线性以及干摩擦等问题。通过调整离散梁单元的各项参数,得出了与实际钢板弹簧的垂向刚度变化和迟滞特性一致的模型。研究结果表明采用离散梁单元法建立的平衡悬架钢板弹簧模型能更真实、可靠地反映钢板弹簧的特性,也为整车动力学模型的建立提供了既准确又方便的平衡悬架钢板弹簧模型。更多还原

【Abstract】 To analyze the performance of leaf spring of tandem suspension of heavy-duty truck,a leaf spring model of multi-body dynamics in tandem suspension for a heavy-duty truck is built with the method of the discrete beam element,and it is a model to solve the problems of the large deformation,non-linear contact and dry friction.The true vertical stiffness change and the hysteresis characteristics of leaf spring can be obtained by adjusting the parameters of the discrete beam in the simulation tests.The characteristic curve of the model can be the same as or similar to the actual leaf spring.The results show that discrete beam method is a better method for describing the real performance of leaf spring of tandem suspension of heavy-duty truck and provide the reliable and convenient leaf spring model for the full vehicle dynamics model.更多还原