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A semi-active damper in vertical secondary suspension for the comfort increase in passenger trains
Author(s): Francesco Ripamonti; Andrea Chiarabaglio; Ferruccio Resta
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Paper Abstract

Passive oil dampers for railway vehicles present a damping and stiffness characteristics, which depend from excitation history. This behaviour is not acceptable for many high-performance applications. A mechatronic approach, able to continuously adjust the damping coefficient according to the operation requirements, represents a very attractive and smart solution. In this paper, a control strategy for semi-active dampers of train vertical secondary suspensions is presented. The controller aims at assuring the maximum available damping at low frequencies, while at high frequencies minimizes the force transmitted to the carbody that excites the bending modes.

Paper Details

Date Published: 11 April 2017
PDF: 11 pages
Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 1016437 (11 April 2017); doi: 10.1117/12.2258225
Show Author Affiliations
Francesco Ripamonti, Politecnico di Milano (Italy)
Andrea Chiarabaglio, Politecnico di Milano (Italy)
Ferruccio Resta, Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 10164:
Active and Passive Smart Structures and Integrated Systems 2017
Gyuhae Park, Editor(s)

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