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Modelling, hardware-in-the-loop tests and numerical simulation of magneto-rheological semi-active primary suspensions in a railway vehicle.
- Source :
-
Vehicle System Dynamics . Jun2024, Vol. 62 Issue 6, p1471-1494. 24p. - Publication Year :
- 2024
-
Abstract
- Semi-active primary suspensions are an effective means of improving ride quality in high-speed railway vehicles in relation to the mitigation of car-body bending vibration. In this paper, prototype magnetorheological (MR) dampers are tested and the results are used to define a mathematical model of the dampers. Then, three control schemes for semi-active primary suspensions are proposed: Skyhook, LQG and Mix-1-Sensor, and their performance is assessed by means of Hardware-In-the-Loop (HIL) tests considering a simple quarter-vehicle model which is run on a real-time board and set in interaction with one physical MR damper. The results show that all three considered control strategies lead to a reduction of car-body vibration by around 30% and a very good agreement is found between HIL tests and numerical simulations in which the physical damper is replaced by the mathematical damper model. The damper model is finally interfaced with a flexible multi-body model of the complete vehicle to provide further assessment of semi-active control. The results of the latter simulations show that the semi-active suspension could provide an improvement of the $ {N_{mvz}} $ N mvz ride quality index in the order of 40–45% with respect to the passive vehicle for all three control schemes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00423114
- Volume :
- 62
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Vehicle System Dynamics
- Publication Type :
- Academic Journal
- Accession number :
- 176862081
- Full Text :
- https://doi.org/10.1080/00423114.2023.2239391