Semi-active control of primary suspensions to improve ride quality in a high-speed railway vehicle

Semi-active suspensions are seen as a promising technology to improve ride quality in high-speed railway vehicles as they provide substantial benefits not achievable through an optimisation of the passive suspension while avoiding some drawbacks of full-active control. Previous works showed that semi-active primary suspensions (SAPS) offer significant improvement of ride quality. However, published implementations of this concept did not consider the coupling effects between car-body and bogie vibrations, which play a decisive role in the success of control strategies for SAPS. This paper provides a comprehensive analysis of SAPS to improve vehicle ride comfort, with special attention to the mitigation of car-body bending vibration. A vehicle model considering the coupling of car-body bending and bogie pitch is proposed and used for the synthesis of an LQG controller. The performance of the semi-active suspension and controller is assessed using a detailed flexible multibody system of a high-speed vehicle. The proposed control scheme is shown to be highly effective in reducing car-body vibration in the entire frequency range of interest from 1 Hz to 20Hz. A remarkable ride comfort improvement is found in the entire speed range from 150 km/h to 350 km/h.

• Record URL:
  • https://doi.org/10.1080/00423114.2022.2128827
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00423114
• Supplemental Notes:
  • © 2022 Informa UK Limited, trading as Taylor & Francis Group. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Fu, Bin
  • 0000-0001-5024-4095
  • Liu, Binbin
  • 0000-0003-2482-8729
  • Di Gialleonardo, Egidio
  • 0000-0003-1393-2942
  • Bruni, Stefano
  • 0000-0003-2177-5254
• Publication Date: 2023-10

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 2664-2688
• Serial:
  • Vehicle System Dynamics
  • Volume: 61
  • Issue Number: 10
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159
  • Serial URL: https://www.tandfonline.com/toc/nvsd20/current

Subject/Index Terms

• TRT Terms: Active suspension systems; High speed rail; Railroad cars; Ride quality; Train track dynamics; Vehicle bodies
• Subject Areas: Railroads; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01895692
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 9 2023 5:07PM