Decentralised Control of Interacting Electrohydraulic Actuators in Road Simulation

Control loops of actuators of a road simulator are subjected to load cross-coupling from the dynamics of differential fore to aft and/or left side to right side motions of the test vehicle. In this paper, appropriate interaction measures suitable for time-domain analysis of non-linear systems are presented and used to evaluate the proposed decentralized control structures for a 4-post road simulator. A non-linear model of the electrohydraulic actuators and a non-linear multi-body model of a transit bus were developed for this purpose using the commercial software ADAMS. Simulation results show that a decentralized control structure acting on actuator load-plate positions keeps interaction to lower levels than the open-loop case. Conversely, a decentralized control structure acting on a remote response parameter like spindle vertical acceleration faces strong interaction effects.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/30654285
• Authors:
  • Ayalew, Beshahwired
  • Kulakowski, Bohdan T
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; References;
• Pagination: pp 307-322
• Serial:
  • International Journal of Heavy Vehicle Systems
  • Volume: 12
  • Issue Number: 4
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1744-232X
  • EISSN: 1741-5152
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJHVS

Subject/Index Terms

• TRT Terms: Actuators; Decentralization; Driving simulators; Loops (Control systems); Nonlinear systems; Simulation; Time domain analysis; Transit buses
• Uncontrolled Terms: Road simulators
• Subject Areas: Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01046680
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 2007 1:46PM