Finite element 3D numerical simulation study of car braking systems and brake disc/drum – pad/shoe friction couple materials

Our study uses the finite element method of modeling and analyzing the functioning of a braking system for a modern vehicle, in terms of stress ditributions, structural deformation, wear and thermal gradient of the brake disc and drum. The 3D geometric model of system brake is designed using Solidwo...

Full description

Saved in:
Bibliographic Details
Published in:E3S web of conferences 2020-01, Vol.180, p.3003
Main Authors: Ipate, George, Ilie, Filip, Cristescu, Andreea Catalina
Format: Article
Language:English
Subjects:
Brake drums
Brake shoes
Braking
Computer simulation
Contact pressure
Deformation wear
Finite element method
Friction
Mathematical analysis
Mathematical models
Pressure
Structural analysis
Thermophysical properties
Three dimensional models
Working conditions
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Our study uses the finite element method of modeling and analyzing the functioning of a braking system for a modern vehicle, in terms of stress ditributions, structural deformation, wear and thermal gradient of the brake disc and drum. The 3D geometric model of system brake is designed using Solidworks, and the coupled thermal and structural analysis is performed with the ANSYS Workbench R16 program. The brake was applied when the car was 85.7 km / h (ω = 125 rad · s -1 ), the duration of braking until the car stopped was t = 5 s. For the given example, the coefficient of average friction during braking, considering the pressure on the pad p = 7.5 MPa, is μ = 0.35. It was discovered that the relative deformations of the plate and disc are larger in the area of the outer diameter than that of the inner diameter. This is also outlined by the fact that the pressure is higher on the outer sides than on the inner sides of the plate, the highest value being in the central axis zone of the outer side. Knowing the thermophysical characteristics of the disc and the plate and the working conditions, it was possible to determine the temperature variation during braking. The results of the numerical research revealed that an increase of the contact pressure and / or the relative speed between the contact surfaces implies an increase of the amplitude of the stick-slip phenomenon.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202018003003