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首页> 外文会议>ASME international design engineering technical conferences and computers and information in engineering conference 2014 >IN-PLANE RIGID RING-BASED TIRE MODEL: PARAMETER IDENTIFICATION, SENSITIVITY ANALYSES, AND EFFECT ON RIDE COMFORT
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IN-PLANE RIGID RING-BASED TIRE MODEL: PARAMETER IDENTIFICATION, SENSITIVITY ANALYSES, AND EFFECT ON RIDE COMFORT

机译：基于平面刚性环的轮胎模型：参数识别，灵敏度分析以及对乘坐舒适性的影响

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摘要

The tire is the main interface between the vehicle and road, and all maneuvers controlled by a driver to road vehicle are achieved by the interaction force between tire and road. In modern vehicle design, tire modeling plays an important role in effectively assessing vehicle handling, ride comfort, and road load analysis. The long term goal of this research is to develop a three-dimensional robust tire model that can be used for road load durability simulation. This work is the first step to the long term goal. This paper presents a new simplified in-plane tire model based on a traditional rigid ring tire model. The interaction between the tire and road is assumed to be patch contact. Optimization technique is used to obtain all key tire parameters of the tire model by minimizing the vertical and horizontal contact forces between the model simulation results and road test data when a tire passes a road bump. After the parameters are identified, a full factorial design of experiments with three levels for each of 8 parameters (horizontal spring stiffness and damper coefficient, vertical spring stiffness and damper coefficient, rotational spring stiffness and damper coefficient between the rim and ring, ring radius, ring residual spring stiffness) is conducted for parameter sensitivity analysis. The three levels for each parameter except the ring radius are 50% increase, 50% decrease, and nominal values. Sensitivity analysis has shown that several parameters are critical to the peak value of the vertical and horizontal contact forces. A quarter-car model is then used to assess ride comfort of the vehicle suspension system. The quarter-car model with the proposed tire model can more accurately predict the ride comfort subject to random road inputs than the one with point contact tire model.
机译：轮胎是车辆与道路之间的主要接口，并且由驾驶员对道路车辆进行控制的所有操作都是通过轮胎与道路之间的相互作用力实现的。在现代车辆设计中，轮胎建模在有效评估车辆操纵性，乘坐舒适性和道路负载分析方面起着重要作用。这项研究的长期目标是开发可用于道路载荷耐久性仿真的三维鲁棒轮胎模型。这项工作是实现长期目标的第一步。本文提出了一种基于传统刚性环轮胎模型的新型简化面内轮胎模型。假定轮胎与道路之间的相互作用是贴片接触。当轮胎通过道路颠簸时，通过使模型仿真结果与道路测试数据之间的垂直和水平接触力最小，使用优化技术来获取轮胎模型的所有关键轮胎参数。确定参数后，针对8个参数分别进行三个级别的全因子设计实验（水平弹簧刚度和阻尼系数，垂直弹簧刚度和阻尼系数，轮辋和环之间的旋转弹簧刚度和阻尼系数，环半径，进行环残余弹簧刚度测试）以进行参数敏感性分析。除环半径外，每个参数的三个级别分别为增加50％，减少50％和标称值。灵敏度分析表明，几个参数对于垂直和水平接触力的峰值至关重要。然后，使用四分之一汽车模型评估车辆悬架系统的乘坐舒适性。与具有点接触轮胎模型的轮胎模型相比，具有建议轮胎模型的四分之一汽车模型可以更准确地预测随机道路输入带来的乘坐舒适性。

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