Abstract Currently available suspension kinematics and compliance (K&C) model is mainly used for qualitative analysis rather than quantitative analysis. In order to reproduce actual suspension K&C characteristic, all the suspension components need to take into account as much details as possible. Suspension stiffness non-linearity, suspension components friction and kinematic joint clearances are examples of how the component models can be made more specific. This paper proposes a modeling technique that can not only reliably represent the hysteretic characteristic but also analyze the effect of joint clearances. The suspension air spring model and bushing model are composed of nonlinear elastic force and Berg's friction force. The suspension supporting components are modeled as flexible bodies. The suspension parameter identification and model validation are also proposed. The test procedure of a new K&C test rig based on non-contact binocular vision system is introduced and the simulation results are compared with the experimental results. Results from tests show good agreement between the proposed suspension model and experimental data. Effects of the suspension components friction and clearance joints are investigated. This type of study can provide useful information on the vehicle design, analysis and optimization.

中文翻译：

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带摩擦和关节间隙的双横臂空气悬架的运动学和柔度分析

摘要 目前可用的悬架运动学与柔度（K&C）模型主要用于定性分析而不是定量分析。为了再现实际的悬架 K&C 特性，所有悬架部件都需要尽可能多地考虑细节。悬架刚度非线性、悬架部件摩擦和运动关节间隙是如何使部件模型更加具体的示例。本文提出了一种建模技术，该技术不仅可以可靠地表示滞后特性，还可以分析接头间隙的影响。悬架空气弹簧模型和衬套模型由非线性弹力和伯格摩擦力组成。悬架支撑组件被建模为柔性体。还提出了悬架参数识别和模型验证。介绍了一种基于非接触双目视觉系统的新型K&C试验台的试验过程，并将仿真结果与试验结果进行了比较。测试结果表明所提出的悬架模型与实验数据之间具有良好的一致性。研究了悬挂部件摩擦和间隙接头的影响。这种类型的研究可以提供有关车辆设计、分析和优化的有用信息。研究了悬挂部件摩擦和间隙接头的影响。这种类型的研究可以提供有关车辆设计、分析和优化的有用信息。研究了悬架部件摩擦和间隙接头的影响。这种类型的研究可以提供有关车辆设计、分析和优化的有用信息。