The dynamic parameters of a roller rig vary as the adhesion level changes. The change in dynamics parameters needs to be analysed to estimate the adhesion level. One of these parameters is noise emanating from wheel–rail interaction. Most previous wheel–rail noise analysis has been conducted to mitigate those noises. However, in this paper, the noise is analysed to estimate the adhesion condition at the wheel–rail contact interface in combination with the other methodologies applied for this purpose. The adhesion level changes with changes in operational and environmental factors. To accurately estimate the adhesion level, the influence of those factors is included in this study. The testing and verification of the methodology required an accurate test prototype of the roller rig. In general, such testing and verification involve complex experimental works required by the intricate nature of the adhesion process and the integration of the different subsystems (i.e. controller, traction, braking). To this end, a new reduced-scale roller rig is developed to study the adhesion between wheel and rail roller contact. The various stages involved in the development of such a complex mechatronics system are described in this paper. Furthermore, the proposed brake control system was validated using the test rig under various adhesion conditions. The results indicate that the proposed brake controller has achieved a shorter stopping distance as compared to the conventional brake controller, and the brake control algorithm was able to maintain the operational condition even at the abrupt changes in adhesion condition.

压路机的动态参数会随着附着力水平的变化而变化。需要分析动力学参数的变化以估计附着力水平。这些参数之一是轮轨相互作用产生的噪声。先前进行的大多数轮轨噪声分析都是为了减轻这些噪声。但是，在本文中，结合用于此目的的其他方法，对噪声进行了分析，以估计轮-轨接触界面处的附着条件。粘附水平随操作和环境因素的变化而变化。为了准确地估计粘附水平，这些因素的影响包括在这项研究中。该方法的测试和验证需要辊筒钻机的准确测试原型。一般来说，这种测试和验证涉及复杂的实验工作，这是粘附过程的复杂性质和不同子系统（即控制器，牵引力，制动）的集成所必需的。为此，开发了一种新型的小型滚轮钻机，以研究车轮和轨道滚轮接触之间的附着力。本文介绍了开发这种复杂机电一体化系统的各个阶段。此外，所提出的制动控制系统已在各种附着力条件下使用测试设备进行了验证。结果表明，与常规制动控制器相比，所提出的制动控制器实现了更短的制动距离，并且即使在粘附条件突然改变的情况下，该制动控制算法也能够维持操作条件。