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Proceedings Paper

Frequency analysis of a semi-active suspension with magneto-rheological dampers
Author(s): Florin Andronic; Ioan Mihai; Cornel Suciu; Marius Beniuga
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Paper Abstract

Suspension systems for motor vehicles are constantly evolving in order to ensure vehicle stability and traffic safety under all driving conditions. The present work aims to highlight the influence factors in the case of a quarter car model for semi-active suspensions. The functions that must be met by such suspension systems are first presented. Mathematical models for passive systems are first illustrated and then customized for the semi-active case. A simulation diagram was conceived for Matlab Simulink. The obtained simulation results allow conducting a frequency analysis of the passive and semi-active cases of the quarter car model. Various charts for Passive Suspension Transmissibility and for the Effect of Damping on Vertical Acceleration Response were obtained for both passive and semi-active situations. Analysis of obtained results allowed evaluating of the suspension systems behavior and their frequency dependence. Significant differences were found between the behaviors of passive and semi-active suspensions. It was found that semi-active suspensions ensure damping in accordance to the chosen control method, and are much more efficient than passive ones.

Paper Details

Date Published: 20 February 2015
PDF: 8 pages
Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 925822 (20 February 2015); doi: 10.1117/12.2070339
Show Author Affiliations
Florin Andronic, Stefan cel Mare Univ. of Suceava (Romania)
Ioan Mihai, Stefan cel Mare Univ. of Suceava (Romania)
Cornel Suciu, Stefan cel Mare Univ. of Suceava (Romania)
Marius Beniuga, Stefan cel Mare Univ. of Suceava (Romania)

Published in SPIE Proceedings Vol. 9258:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII
Ionica Cristea; Marian Vladescu; Razvan Tamas, Editor(s)

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