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钢板弹簧虽然结构简单,使用可靠,但其质量大,行驶平顺性相对较差,所以本文提出新型钢板橡胶组合弹簧来提高汽车行驶平顺性、舒适性。本文基于APDL在ANSYS中对组合弹簧在装配过程中的接触非线性行为进行了分析,并分析了弹簧片几何参数对组合弹簧力学性能的影响。结果表明,相比钢板弹簧而言,七层8+8组合弹簧的接触应力降低了27.37%,七层8+16的组合弹簧的接触应力降低了47.8%;对比8+8组合弹簧、8+16组合弹簧和12+12组合弹簧可得,同时增加钢板层和橡胶层厚度,接触应力降低效果更加显著。由此可见,相同的位移荷载下,组合弹簧在装配过程中的接触应力比钢板弹簧的低,而且接触应力随着橡胶层厚度的增加而降低,同时增加钢板层和橡胶层的厚度更有助于接触应力的降低。
Although the leaf spring is simple in structure and reliable in use, its quality is rather poor and ride comfort is relatively poor. Therefore, this paper presents a new type of rubber plate combination spring to improve ride comfort and comfort. Based on the APDL in ANSYS, this paper analyzes the contact non-linear behavior of the composite spring in the assembly process and analyzes the influence of the geometric parameters of the spring on the mechanical properties of the composite spring. The results show that the contact stress of the seven-layer 8 + 8 composite spring is reduced by 27.37% and the contact stress of the seven-layer 8 + 16 composite spring is reduced by 47.8% compared with the leaf spring. Compared with the 8 + 8 combination spring, 16 combination springs and 12 + 12 combination springs available, while increasing the thickness of the steel layer and rubber layer, the contact stress reduction effect is more pronounced. It can be seen that under the same displacement load, the contact stress of the composite spring during assembly is lower than that of the leaf spring, and the contact stress decreases as the thickness of the rubber layer increases, and the thickness of the steel plate layer and the rubber layer is more helpful Decrease in contact stress.