Low frequency friction induced vibration of automotive disc brake

The automotive disc brake low frequency vibration has been a major concern in warranty issues and a challenging problem for many years. A variety of tools have been developed which include both experimental studies and numerical modeling technique to tackle the problem. The aim of this project is to...

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Main Author:	Magaswaran, Kumaresan
Format:	Thesis
Language:	English English
Published:	2014
Subjects:	TL Motor vehicles Aeronautics Astronautics
Online Access:	http://eprints.utem.edu.my/id/eprint/14710/1/Low%20Frequency%20Friction%20Induced%20Vibration%20Of%20Automotive%20Disc%20Brake%2024pages.pdf http://eprints.utem.edu.my/id/eprint/14710/2/Low%20frequency%20friction%20induced%20vibration%20of%20automotive%20disc%20brake.pdf
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id	my-utem-ep.14710
record_format	uketd_dc
spelling	my-utem-ep.147102022-11-01T15:51:45Z Low frequency friction induced vibration of automotive disc brake 2014 Magaswaran, Kumaresan TL Motor vehicles. Aeronautics. Astronautics The automotive disc brake low frequency vibration has been a major concern in warranty issues and a challenging problem for many years. A variety of tools have been developed which include both experimental studies and numerical modeling technique to tackle the problem. The aim of this project is to develop a validated mathematical model considering the dynamic friction characteristics in the vibration of the disc brake. A key issue in the process is to investigate the structural deformation of the brake due to the friction distribution at the pad and disc contact during a typical braking cycle. A new methodology is introduced whereby the Green's equation is utilized to deduce the motion of the brake pad during braking. An experimental investigation using a brake dynamometer is also carried out to measure the vibration characteristics which are then used to validate the results predicted by the mathematical modeling. It is demonstrated that the mathematical model enhances the understanding of the time dependent non-linear contact behavior at the friction interface. The model was able to correspond to the frequencies of each modes obtained from the experiment with an average of 5 %. This, model in tum, demonstrated the fugitive nature of brake pad oscillation that appears and disappears as a function of friction distribution throughout the braking period. Parametric studies on the pressure and speed effects determine the contribution of each of these factors to brake pad leading end and trailing end behavior. The effects of these parameters were found to be modal depend, the decrease in speed during braking gave rise to vibration at frequencies between 500 Hz to 700 Hz where else braking at higher pressures subdued the vibration frequencies between 650 Hz to 850 Hz. Thus this approach can be used as a study tool to evaluate disc brake low frequency vibration using the mathematical model. 2014 Thesis http://eprints.utem.edu.my/id/eprint/14710/ http://eprints.utem.edu.my/id/eprint/14710/1/Low%20Frequency%20Friction%20Induced%20Vibration%20Of%20Automotive%20Disc%20Brake%2024pages.pdf text en public http://eprints.utem.edu.my/id/eprint/14710/2/Low%20frequency%20friction%20induced%20vibration%20of%20automotive%20disc%20brake.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=92144 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Mechanical Engineering Hassan, Muhammad Zahir
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Hassan, Muhammad Zahir
topic	TL Motor vehicles Aeronautics Astronautics
spellingShingle	TL Motor vehicles Aeronautics Astronautics Magaswaran, Kumaresan Low frequency friction induced vibration of automotive disc brake
description	The automotive disc brake low frequency vibration has been a major concern in warranty issues and a challenging problem for many years. A variety of tools have been developed which include both experimental studies and numerical modeling technique to tackle the problem. The aim of this project is to develop a validated mathematical model considering the dynamic friction characteristics in the vibration of the disc brake. A key issue in the process is to investigate the structural deformation of the brake due to the friction distribution at the pad and disc contact during a typical braking cycle. A new methodology is introduced whereby the Green's equation is utilized to deduce the motion of the brake pad during braking. An experimental investigation using a brake dynamometer is also carried out to measure the vibration characteristics which are then used to validate the results predicted by the mathematical modeling. It is demonstrated that the mathematical model enhances the understanding of the time dependent non-linear contact behavior at the friction interface. The model was able to correspond to the frequencies of each modes obtained from the experiment with an average of 5 %. This, model in tum, demonstrated the fugitive nature of brake pad oscillation that appears and disappears as a function of friction distribution throughout the braking period. Parametric studies on the pressure and speed effects determine the contribution of each of these factors to brake pad leading end and trailing end behavior. The effects of these parameters were found to be modal depend, the decrease in speed during braking gave rise to vibration at frequencies between 500 Hz to 700 Hz where else braking at higher pressures subdued the vibration frequencies between 650 Hz to 850 Hz. Thus this approach can be used as a study tool to evaluate disc brake low frequency vibration using the mathematical model.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Magaswaran, Kumaresan
author_facet	Magaswaran, Kumaresan
author_sort	Magaswaran, Kumaresan
title	Low frequency friction induced vibration of automotive disc brake
title_short	Low frequency friction induced vibration of automotive disc brake
title_full	Low frequency friction induced vibration of automotive disc brake
title_fullStr	Low frequency friction induced vibration of automotive disc brake
title_full_unstemmed	Low frequency friction induced vibration of automotive disc brake
title_sort	low frequency friction induced vibration of automotive disc brake
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Mechanical Engineering
publishDate	2014
url	http://eprints.utem.edu.my/id/eprint/14710/1/Low%20Frequency%20Friction%20Induced%20Vibration%20Of%20Automotive%20Disc%20Brake%2024pages.pdf http://eprints.utem.edu.my/id/eprint/14710/2/Low%20frequency%20friction%20induced%20vibration%20of%20automotive%20disc%20brake.pdf
_version_	1776103077450874880

Low frequency friction induced vibration of automotive disc brake

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