Login | Register

A comparative study of advanced suspension dampers for vibration and shock isolation performance

Title:

A comparative study of advanced suspension dampers for vibration and shock isolation performance

Islam, A. S. M. Shawkatul (2005) A comparative study of advanced suspension dampers for vibration and shock isolation performance. Masters thesis, Concordia University.

[thumbnail of MR04419.pdf]
Preview
Text (application/pdf)
MR04419.pdf - Accepted Version
6MB

Abstract

Electro-Rheological (ER) and Magneto-Rheological (MR) fluid based advanced suspension dampers are emerging to be the next generation of suspension dampers. ER damper and MR damper have gained wide spread attention in academia as well in auto industries due to their attractive features and promising performance potential to overcome the limitations of existing dampers in market. This work presents a comprehensive study of four different suspension dampers, where each are modeled, validated and assigned a set of parameters to facilitate a comparison of performance. The dampers considered include linear passive damper, two-stage asymmetric non-linear damper, ER damper and MR damper. The vibration and shock isolation performance of the dampers are compared using a four degree-of-freedom pitch plane ride model. A wide range of performance measure is considered in this investigation, namely--sprung and unsprung mass responses, relative motions, drift, pavement load etc. The study reveals superior vibration and shock isolation performance of ER damper and MR damper for vehicle sprung mass compared to linear passive damper and asymmetric non-linear damper. Since the dampers are designed as symmetric in compression and rebound, they are immune from ride height drifting problem. At higher frequencies (above 10 Hz), the dampers transmit higher load to pavement compared to other two. The study suggests that asymmetricity should be included in the design of these dampers to achieve improved performance over the entire frequency range. A properly tuned MR damper with controller to provide asymmetric characteristics has the most potential for superior performance for all responses.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Mechanical and Industrial Engineering
Item Type:Thesis (Masters)
Authors:Islam, A. S. M. Shawkatul
Pagination:xxi, 172 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M.A. Sc.
Program:Mechanical and Industrial Engineering
Date:2005
Thesis Supervisor(s):Ahmed, A. K. W
Identification Number:TA 355 I85 2005
ID Code:8239
Deposited By: Concordia University Library
Deposited On:18 Aug 2011 18:19
Last Modified:13 Jul 2020 20:03
Related URLs:
All items in Spectrum are protected by copyright, with all rights reserved. The use of items is governed by Spectrum's terms of access.

Repository Staff Only: item control page

Downloads per month over past year

Research related to the current document (at the CORE website)
- Research related to the current document (at the CORE website)
Back to top Back to top