Thermomechanical Model for the Analysis of Disc Brake Using the Finite Element Method in Frictional Contact

Abstract

The braking phenomenon is an aspect of vehicle stopping performance where with kinetic energy due to speed of the vehicle is transformed to thermal energy via the friction between the brake disc and its pads. In our work, we presented numerical modeling using ANSYS software adapted in the finite element method, to follow the evolution of the global temperatures for the two types of brake discs, full and ventilated disc during braking scenario. Also, numerical simulation of the transient thermal and the static structural analysis were performed sequentially, with coupled thermo-structural method. Numerical procedure of calculation relies on important steps such that the Computational Fluid Dynamics and thermal analysis have been well illustrated in 3D, showing the effects of heat distribution over the brake disc. This CFD approach helped in the calculation of values of the heat transfer coefficients (h) that have been exploited in 3D transient evolution of the brake disc temperatures. Three different brake disc materials were tested and comparative analysis of the results was conducted in order, to derive the one with the best thermal behavior. Finally, the resolution of the coupled thermomechanical model allows us to visualize other important results of this research such as; the deformations, and the equivalent Von Mises stress of the disc, as well as the contact pressure of brake pads. Following the analysis of the results obtained, we draw several conclusions from this investigation. The choice allowed us to deliver the excellent rotor design to ensure and guarantee the good braking performance of the vehicles.

Effect of Frictional Slipping on the Strength of Ribbon-Reinforced Composite

“…In the process of the exploitation of composites, the phenomenon of cracking and delamination is frequent; i.e., reinforcing heterogeneities can be in both ideal and non-ideal contact with the basic material, including at the interface of the media. Consideration of friction in the study of contact phenomena is one of the most pressing problems for mechanical engineering and materials science in the analysis of phenomena and processes occurring in the moving elements of machines, at various technological operations [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Thus, friction may be accompanied by electrical, thermal, vibrational, and chemical processes that dampen internal dynamic processes, significantly affecting the intensity in the wear and tear of materials and, consequently, the reliability and durability of the structural elements made of them [ 12 , 13 , 16 , 19 ].…”

A quasi-3D model of the whole lung: airway extension to the tracheobronchial limit using the constrained constructive optimization and alveolar modeling, using a sac–trumpet model

“…Complicated secondary flows (Briley & McDonald, 1984 ), the local vorticity creation at the ridges, and other detailed features cannot be captured by the Q3D model. Similarly, other complicated phenomena like the aerothermal effects (Belhocine & Omar, 2018 ), analyses of thermal/fluid boundary layers (Belhocine & Oday, 2015 ; Belhocine, 2016 ), effects of wall heating (Belhocine, 2017 ), effects of convective heat transfer (Belhocine & Omar, 2017 ), thermal-turbulent interactions (Belhocine & Oday, 2019 ), and effect of friction (Belhocine & Oday, 2020 ) can be modeled only using detailed CFD models, as demonstrated by Belhocine and his colleagues. However, the Q3D method can accurately predict fluid pressures and provide accurate transport effects.…”

Modeling and improvement of the tricycle braking system for controlled skidding

“…In the Table 3 below are presented the results for both castiron and for ceramic materials used for disc variant five. To perform this analysis, according to specialty literature [12][13], the disc with the best results in terms of heating temperature at the time of impact was used, namely variant 5 of the disc. This time the semi-metallic material was replaced with the cast iron material.…”