论文部分内容阅读
橡胶扭力轴套具有体积小、重量轻等优点,逐渐取代扭杆等传统悬架形式在全地形履带车中得以应用。扭力轴套的扭转刚度决定了悬架的减振性能,进而影响整车平顺性表现,目前尚缺乏从全地形车整车平顺性角度出发的扭转刚度模型。结合橡胶扭力轴套悬架结构特点,从橡胶元件的非线性特性出发建立扭转刚度的理论模型,并结合整车动力学模型,以路面不平度作为激励输入计算平顺性指标,建立扭转刚度参数的响应面模型并进行优化。优化后的扭转刚度模型提高了全地形车的平顺性,为全地形履带车橡胶扭力轴套的扭转刚度特性设计提供了理论依据。
Rubber torque sleeve with small size, light weight and other advantages, and gradually replace the torsion bar and other traditional forms of suspension in all terrain crawler to be applied. The torsional stiffness of the torsion sleeve determines the vibration damping performance of the suspension and further affects the ride comfort of the vehicle. At present, there is still no torsional stiffness model from the perspective of the ride comfort of the ATV. Based on the structural characteristics of rubber torsion bush suspension, a theoretical model of torsional stiffness was established based on the nonlinear characteristics of rubber components. The stiffness index was established by combining the vehicle dynamics model with the roughness of road surface as the input to calculate ride comfort. Response surface model and optimize. The optimized torsional stiffness model improves the ride comfort of the ATV and provides a theoretical basis for the design of the torsional stiffness of all-terrain crawler rubber torque sleeve.