Development of Variable Damping and Variable Stiffness Magnetorheological Fluid Damper for Four Wheeled Passenger Vehicle.

Saved in:

Bibliographic Details
Title:	Development of Variable Damping and Variable Stiffness Magnetorheological Fluid Damper for Four Wheeled Passenger Vehicle.
Authors:	Maskar, Prabhakar¹ prabhakar.maskar@walchandsangli.ac.in, Jugulkar, Lalitkumar², Waghmode, Laxman³
Source:	International Journal of Vehicle Structures & Systems (IJVSS). 2025, Vol. 17 Issue 6, p1000-1007. 8p.
Subjects:	Damping (Mechanics), Stiffness (Engineering), Human comfort, Automobile springs & suspension, Frequency-domain analysis, Motor vehicle springs & suspension, Empirical research, Magnetorheological fluids
Abstract:	A standard automotive suspension with spring and damper has two main functions: to isolate the car from road vibrations and provide better road handling. Investigation into controlled suspension systems has been driven forward by the limitations of passive suspensions. Semi-active suspensions were selected for this research because of their better reliability, reduced cost and comparable performance. The spring rate and damping characteristics are not able to be modified of a passive suspension system to obtain acceptable behaviour across the whole operating frequency range. The damping characteristics have been modified by means of a Magneto-Rheological (MR) fluid damper. The MR fluid damper was developed and it was made to operate effectively across the entire range of its operating frequency. The developed MR damper is experimentally evaluated in a lab test setup to determine its effectiveness. On a laboratory test setup, a recently developed suspension system was subjected to the test. Different spring masses, including 50 kg, 100 kg and 150 kg, were used in this test. The results that were obtained are in the frequency range. Additionally, a mechanism with variable stiffness was suggested to enhance ride comfort. Theoretically, various variable stiffness values generated from the suggested mechanism are determined. [ABSTRACT FROM AUTHOR]
	Copyright of International Journal of Vehicle Structures & Systems (IJVSS) is the property of Carbon Magics Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	Engineering Source

Description
Abstract:	A standard automotive suspension with spring and damper has two main functions: to isolate the car from road vibrations and provide better road handling. Investigation into controlled suspension systems has been driven forward by the limitations of passive suspensions. Semi-active suspensions were selected for this research because of their better reliability, reduced cost and comparable performance. The spring rate and damping characteristics are not able to be modified of a passive suspension system to obtain acceptable behaviour across the whole operating frequency range. The damping characteristics have been modified by means of a Magneto-Rheological (MR) fluid damper. The MR fluid damper was developed and it was made to operate effectively across the entire range of its operating frequency. The developed MR damper is experimentally evaluated in a lab test setup to determine its effectiveness. On a laboratory test setup, a recently developed suspension system was subjected to the test. Different spring masses, including 50 kg, 100 kg and 150 kg, were used in this test. The results that were obtained are in the frequency range. Additionally, a mechanism with variable stiffness was suggested to enhance ride comfort. Theoretically, various variable stiffness values generated from the suggested mechanism are determined. [ABSTRACT FROM AUTHOR]
ISSN:	09753060
DOI:	10.4273/ijvss.17.6.13