This paper develops a wheel profile fine-tuning system (WPFTS) that comprehensively considers the influence of wheel profile on wheel damage, vehicle stability, vehicle safety, and passenger comfort. WPFTS can recommend one or more optimized wheel profiles according to train operators’ needs, e.g., reducing wheel wear, mitigating the development of wheel out-of-roundness (OOR), improving the shape stability of the wheel profile. Specifically, WPFTS includes four modules: (I) a wheel profile generation module based on the rotary-scaling fine-tuning (RSFT) method; (II) a multi-objective generation module consisting of a rigid multi-body dynamics simulation (MBS) model, an analytical model, and a rigid–flexible MBS model, for generating 11 objectives related to wheel damage, vehicle stability, vehicle safety, and passenger comfort; (III) a weight assignment module consisting of an adaptive weight assignment strategy and a manual weight assignment strategy; and (IV) an optimization module based on radial basis function (RBF) and particle swarm optimization (PSO). Finally, three cases are introduced to show how WPTFS recommends a wheel profile according to train operators’ needs. Among them, a wheel profile with high shape stability, a wheel profile for mitigating the development of wheel OOR, and a wheel profile considering hunting stability and derailment safety are developed, respectively.

本文开发了一种车轮轮廓微调系统（WPFTS），该系统综合考虑了车轮轮廓对车轮损坏，车辆稳定性，车辆安全性和乘客舒适度的影响。WPFTS可以根据火车运营商的需求推荐一种或多种优化的车轮轮廓，例如，减少车轮磨损，减轻车轮不圆度（OOR）的发展，提高车轮轮廓的形状稳定性。具体而言，WPFTS包括四个模块：（I）基于旋转比例微调（RSFT）方法的车轮轮廓生成模块；（II）一个多目标生成模块，由一个刚性多体动力学模拟（MBS）模型，一个分析模型和一个刚性-柔性MBS模型组成，用于生成与车轮损坏，车辆稳定性，车辆安全性相关的11个目标，和乘客舒适度；（III）权重分配模块，包括自适应权重分配策略和手动权重分配策略；（IV）基于径向基函数（RBF）和粒子群优化（PSO）的优化模块。最后，介绍了三种情况，以显示WPTFS如何根据火车驾驶员的需求推荐车轮轮廓。其中，分别开发了具有高形状稳定性的车轮轮廓，用于减轻车轮OOR发展的车轮轮廓以及考虑到波动稳定性和脱轨安全性的车轮轮廓。介绍了三种情况，以显示WPTFS如何根据火车运营商的需求推荐车轮轮廓。其中，分别开发了具有高形状稳定性的车轮轮廓，用于减轻车轮OOR发展的车轮轮廓以及考虑到波动稳定性和脱轨安全性的车轮轮廓。介绍了三种情况，以显示WPTFS如何根据火车运营商的需求推荐车轮轮廓。其中，分别开发了具有高形状稳定性的车轮轮廓，用于减轻车轮OOR发展的车轮轮廓以及考虑到波动稳定性和脱轨安全性的车轮轮廓。