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Proceedings Paper

Active control of train bogies with MR dampers
Author(s): Abbas Fotoohi; Aghil Yousefi-Koma; Naser Yasrebi
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Paper Abstract

This research is conducted to demonstrate the advantages of skyhook semi-active dampers in railway vehicle suspension systems. This semi- active suspension system consists of four actuators on each bogie that locate in the secondary suspension position instead of passive dampers. Employing equations of skyhook control scheme, the semi- active damping force (actuator force) is determined by absolute velocity of car body instead of relative velocity. An integration of a control design tool, i.e. MATLAB, together with a tool for railway vehicle simulation, i.e. ADAMS/Rail is utilized for modeling and control analysis simultaneously. Analysis has been performed on a traditional bogie model with passive secondary suspension and on a new bogie model with semi-active suspension. The effects of suspension system on displacement and acceleration in passenger seats have been investigated in various points of car body. Results show that the semi-active suspension improves the ride comfort by reducing accelerations, in comparison with passive model. Finally, according to the damper force obtained from Sky-hook controller, a Magnetorheological (MR) damper has been designed for the semi-active suspension system.

Paper Details

Date Published: 30 March 2006
PDF: 9 pages
Proc. SPIE 6171, Smart Structures and Materials 2006: Industrial and Commercial Applications of Smart Structures Technologies, 61710J (30 March 2006); doi: 10.1117/12.659565
Show Author Affiliations
Abbas Fotoohi, Univ. of Tehran (Iran)
Aghil Yousefi-Koma, Univ. of Tehran (Iran)
Naser Yasrebi, Univ. of Tehran (Iran)

Published in SPIE Proceedings Vol. 6171:
Smart Structures and Materials 2006: Industrial and Commercial Applications of Smart Structures Technologies
Edward V. White, Editor(s)

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