Reliability Modeling of the Brake Drum in Automotive Braking Systems

Abstract

This paper presents research findings related to the reliability analysis of the brake drum in the braking system of light commercial vehicles. The introductory section highlights the importance of motor vehicle braking systems for the safety of both people and vehicles in traffic. In heavy motor vehicles, drum brakes are used as the actuators of both service and parking brakes. In order to assess the reliability of the brake drum, it is essential to understand the operating principles of drum brakes, their operating parameters, working conditions, failure causes and mechanisms, as well as other relevant information regarding the operation of the considered component. Reliability modeling of the brake drum was conducted based on failure data collected during the operational phase. For the purpose of reliability modeling, the three-parameter Weibull distribution was used due to its generality and flexibility in fitting empirical data. The theoretical distribution model was tested using graphical methods and non-parametric statistical hypothesis tests. The conclusion emphasizes the importance of reliability assessment, the potential applications of the obtained results, and directions for future research in this field.