Anti-friction fifth wheel brake system

Abstract

This thesis presents the development and design of a novel brake mechanism, based on my patented invention (International Classification B60W 10/18; B60W 30/00; B60T 8/00). The research includes a dynamic analysis using D'Alembert's Principle, detailed stress analysis, and the intricate design of the braking system's components, capable of withstanding a braking acceleration of 15.5 m/s² the highest rate for racing cars. This performance is sufficient to stop a vehicle traveling at 110 km/h within a 30-meter braking distance for a car weighing up to 2000 kg. A thorough study was conducted to assess the maximum stress and deformation on the mechanism’s parts, leading to the selection of appropriate materials and dimensions to ensure adequate strength. The 3D modeling was executed using SolidWorks a computer-aided design software program, with simulations performed in Abaqu a software suite for finite element analysis. The design adhered to established standards and utilized authoritative manufacturer catalogs. The study concludes with a detailed design of the brake mechanism that meets stringent braking performance criteria, ensuring robustness and reliability under operational conditions, thereby enhancing vehicular safety. However, further investigation is needed for the helical rotor, as braking and its analysis require comprehensive research.