Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique

Suspension is part of automotive systems, providing both vehicle control and passenger comfort. The knuckle is an important part within the suspension system, constantly encountering the cyclic loads subjecting it to fatigue failure. This paper presents an evaluation of the fatigue characteristics...

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Main Authors:	M., Kamal, M. M., Rahman, Abdul Ghaffar, Abdul Rahman
Format:	Article
Language:	English
Published:	Faculty Mechanical Engineering, UMP 2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/13771/ http://umpir.ump.edu.my/id/eprint/13771/ http://umpir.ump.edu.my/id/eprint/13771/ http://umpir.ump.edu.my/id/eprint/13771/1/Fatigue%20Life%20Evaluation%20Of%20Suspension%20Knuckle%20Using%20Multibody%20Simulation%20Technique.pdf

id	ump-13771
recordtype	eprints
spelling	ump-137712018-01-29T00:18:30Z http://umpir.ump.edu.my/id/eprint/13771/ Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique M., Kamal M. M., Rahman Abdul Ghaffar, Abdul Rahman TJ Mechanical engineering and machinery Suspension is part of automotive systems, providing both vehicle control and passenger comfort. The knuckle is an important part within the suspension system, constantly encountering the cyclic loads subjecting it to fatigue failure. This paper presents an evaluation of the fatigue characteristics of a knuckle using multibody simulation (MBS) techniques. Load time history extracted from the MBS is used for stress analysis. An actual road profile of road bumps was used as the input to MBS. The stress fluctuations for fatigue simulations are considered with the road profile. The strain-life method is utilized to assess the fatigue life. The instantaneous stress distributions and maximum principal stress are used for fatigue life predictions. Mesh sensitivity analysis has been performed. The results show that the steering link in the knuckle is found to be the most susceptible region for fatigue failure. The number of times the knuckle can manage a road bump at 40 km/hr is determined to be approximately 371 times with a 50% certainty of survival. The proposed method of using the loading time history extracted from MBS simulation for fatigue life estimation is found to be very promising for the accurate evaluation of the performance of suspension system components. Faculty Mechanical Engineering, UMP 2012 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/13771/1/Fatigue%20Life%20Evaluation%20Of%20Suspension%20Knuckle%20Using%20Multibody%20Simulation%20Technique.pdf M., Kamal and M. M., Rahman and Abdul Ghaffar, Abdul Rahman (2012) Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique. Journal of Mechanical Engineering and Sciences (JMES) , 3. pp. 291-300. ISSN 2289-4659 (print); 2231-8380 (online) http://dx.doi.org/10.15282/jmes.3.2012.5.0027 DOI: 10.15282/jmes.3.2012.5.0027
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery M., Kamal M. M., Rahman Abdul Ghaffar, Abdul Rahman Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique
description	Suspension is part of automotive systems, providing both vehicle control and passenger comfort. The knuckle is an important part within the suspension system, constantly encountering the cyclic loads subjecting it to fatigue failure. This paper presents an evaluation of the fatigue characteristics of a knuckle using multibody simulation (MBS) techniques. Load time history extracted from the MBS is used for stress analysis. An actual road profile of road bumps was used as the input to MBS. The stress fluctuations for fatigue simulations are considered with the road profile. The strain-life method is utilized to assess the fatigue life. The instantaneous stress distributions and maximum principal stress are used for fatigue life predictions. Mesh sensitivity analysis has been performed. The results show that the steering link in the knuckle is found to be the most susceptible region for fatigue failure. The number of times the knuckle can manage a road bump at 40 km/hr is determined to be approximately 371 times with a 50% certainty of survival. The proposed method of using the loading time history extracted from MBS simulation for fatigue life estimation is found to be very promising for the accurate evaluation of the performance of suspension system components.
format	Article
author	M., Kamal M. M., Rahman Abdul Ghaffar, Abdul Rahman
author_facet	M., Kamal M. M., Rahman Abdul Ghaffar, Abdul Rahman
author_sort	M., Kamal
title	Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique
title_short	Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique
title_full	Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique
title_fullStr	Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique
title_full_unstemmed	Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique
title_sort	fatigue life evaluation of suspension knuckle using multibody simulation technique
publisher	Faculty Mechanical Engineering, UMP
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/13771/ http://umpir.ump.edu.my/id/eprint/13771/ http://umpir.ump.edu.my/id/eprint/13771/ http://umpir.ump.edu.my/id/eprint/13771/1/Fatigue%20Life%20Evaluation%20Of%20Suspension%20Knuckle%20Using%20Multibody%20Simulation%20Technique.pdf
first_indexed	2023-09-18T22:16:45Z
last_indexed	2023-09-18T22:16:45Z
_version_	1777415388746743808

Fatigue Life Evaluation of Suspension Knuckle Using Multibody Simulation Technique

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