Simulation study on transverse vibration for automotive absorber

Simulation study on transverse vibration for automotive absorber

Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two parts. In addition, suspension systems are used for keeping vehicle occupants comfortable and reasonably well isolated from road noise,...

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Main Author: Norazni, Nor Shazwan Azrul
Format: Thesis
Language:English
English
Published: 2017
Subjects:
T Technology (General)
Online Access:http://eprints.utem.edu.my/id/eprint/20532/1/Simulation%20Study%20On%20Transverse%20Vibration%20For%20Automotive%20Absorber.pdf
http://eprints.utem.edu.my/id/eprint/20532/2/Simulation%20study%20on%20transverse%20vibration%20for%20automotive%20absorber.pdf
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id my-utem-ep.20532
record_format uketd_dc
institution Universiti Teknikal Malaysia Melaka
collection UTeM Repository
language English
English
advisor Salim, Mohd Azli
topic T Technology (General)
T Technology (General)
spellingShingle T Technology (General)
T Technology (General)
Norazni, Nor Shazwan Azrul
Simulation study on transverse vibration for automotive absorber
description Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two parts. In addition, suspension systems are used for keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations. However, most of existing works on the suspension system especially the mathematical modelling models considers only the performance due to longitudinal direction. In order to realize the limitations of conventional suspensions in terms of shock absorption and vibration isolation along the longitudinal direction, therefore, transmissibility analysis of automotive absorber in transverse direction will be helpful to make a better understanding the behaviour of suspension system. The main objective of this study is therefore to modified existing mathematical model of automotive suspension to characterize the transmissibility performance that called transverse vibration model. Mathematical models for transmissibility are developed by using two different approaches: (i) lumped mass model and (ii) finite rod model. The first approach uses assumption of massless suspension absorber where the systems are simply modelled by using spring and damper elements. The second approach employs impedance technique derived from wave propagation across a finite rod model. In this approach, the internal resonance was predicted. It found that the wave effect in the distributed parameter suspension absorber have the potential to reduce the performance of the vibration absorber. The transmissibility for a wave effect for the transverse vibration model has a peak at a natural frequency and it is close to the fundamental resonance. Furthermore, the finding also revealed that transmissibility for the wave effect in the transverse vibration model is greater at higher frequency range. The mathematical model developed in this study proved capable of representing the transmissibility behavior of the transverse vibration model without the need to use physical test such as experimental testing. Last but not least, the parametric study also discussed in this thesis.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Norazni, Nor Shazwan Azrul
author_facet Norazni, Nor Shazwan Azrul
author_sort Norazni, Nor Shazwan Azrul
title Simulation study on transverse vibration for automotive absorber
title_short Simulation study on transverse vibration for automotive absorber
title_full Simulation study on transverse vibration for automotive absorber
title_fullStr Simulation study on transverse vibration for automotive absorber
title_full_unstemmed Simulation study on transverse vibration for automotive absorber
title_sort simulation study on transverse vibration for automotive absorber
granting_institution Universiti Teknikal Malaysia Melaka
granting_department Faculty Of Mechanical Engineering
publishDate 2017
url http://eprints.utem.edu.my/id/eprint/20532/1/Simulation%20Study%20On%20Transverse%20Vibration%20For%20Automotive%20Absorber.pdf
http://eprints.utem.edu.my/id/eprint/20532/2/Simulation%20study%20on%20transverse%20vibration%20for%20automotive%20absorber.pdf
_version_ 1747833976326717440
spelling my-utem-ep.205322022-06-01T16:55:42Z Simulation study on transverse vibration for automotive absorber 2017 Norazni, Nor Shazwan Azrul T Technology (General) TL Motor vehicles. Aeronautics. Astronautics Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two parts. In addition, suspension systems are used for keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations. However, most of existing works on the suspension system especially the mathematical modelling models considers only the performance due to longitudinal direction. In order to realize the limitations of conventional suspensions in terms of shock absorption and vibration isolation along the longitudinal direction, therefore, transmissibility analysis of automotive absorber in transverse direction will be helpful to make a better understanding the behaviour of suspension system. The main objective of this study is therefore to modified existing mathematical model of automotive suspension to characterize the transmissibility performance that called transverse vibration model. Mathematical models for transmissibility are developed by using two different approaches: (i) lumped mass model and (ii) finite rod model. The first approach uses assumption of massless suspension absorber where the systems are simply modelled by using spring and damper elements. The second approach employs impedance technique derived from wave propagation across a finite rod model. In this approach, the internal resonance was predicted. It found that the wave effect in the distributed parameter suspension absorber have the potential to reduce the performance of the vibration absorber. The transmissibility for a wave effect for the transverse vibration model has a peak at a natural frequency and it is close to the fundamental resonance. Furthermore, the finding also revealed that transmissibility for the wave effect in the transverse vibration model is greater at higher frequency range. The mathematical model developed in this study proved capable of representing the transmissibility behavior of the transverse vibration model without the need to use physical test such as experimental testing. Last but not least, the parametric study also discussed in this thesis. 2017 Thesis http://eprints.utem.edu.my/id/eprint/20532/ http://eprints.utem.edu.my/id/eprint/20532/1/Simulation%20Study%20On%20Transverse%20Vibration%20For%20Automotive%20Absorber.pdf text en public http://eprints.utem.edu.my/id/eprint/20532/2/Simulation%20study%20on%20transverse%20vibration%20for%20automotive%20absorber.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=105946 mphil masters Universiti Teknikal Malaysia Melaka Faculty Of Mechanical Engineering Salim, Mohd Azli 1. Agharkakli, A., Sabet, G. S., and Barouz, A., 2012. Simulation and Analysis of Passiveand Active Suspension System Using Quarter Car Model for Different Road Profile.International Journal of Engineering Trends and Technology, Vol. 3 (5), pp. 636-644. 2. Alexandru, C., and Alexandru, P., 2011. A Comparative Analysis Between The Vehicles’Passive And Active Suspensions. International Journal of Mechanics .Issue 4, Vol. 5 (4),pp. 125-136. 3. Alexandru, C. and Alexandru, P., 2010. The Virtual Prototype of a MechatronicSuspension System with Active Force Control. WSEAS Transactions on Systems, Vol. 9,pp. 927–936. 4. Alexandru, C., 2009. The Kinematic Optimization of The Multi-Link SuspensionMechanisms Used For The Rear Axle of The Motor Vehicles. Proceedings of TheRomanian Academy , Vol. 10 (3), pp. 244–253. 5. Parekh, A., Kumbhar S. B. and Joshi, S. G., 2014. Transmissibility Analysis of a CarDriver’s Seat Suspension System with an Air Bellow Type Damper. International Journalon Recent Technologies in Mechanical and Electrical Engineering (IJRMEE), Vol. 1 (3),pp. 12– 19.109 6. Bouazara, M., Richard, M. J. and Rakheja, S., 2006. Safety and Comfort Analysis of A 3-D Vehicle Model With Optimal Non-Linear Active Seat Suspension. Journal ofTerramechanics, Vol. 43 (2), pp. 97–118. 7. Cole, D. J., 2001. 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