CONTROL OF LATERAL MOTIONS OF THE TERRAFOIL TRANSIT VEHICLE

The active ride control system for the TERRAFOIL vehicle is described. The passenger compartment of this vehicle is supported above the roadway by long flexible struts, and its undercarriage is enclosed in an underground guideway. Lateral loads are imposed on the vehicle by cornering maneuvers, winds, and guideway roughness. This study shows that electrohydraulic servomechanisms designed to apply control moments at the base of the supporting struts can adequately confine the lateral motions of the passenger compartment within specified limits, even with extreme load disturbances. A dynamic model including the flexible strut shows the system to be controllable through the servovalve input signal and observable through feedback signals from the servopiston and an accelerometer mounted on the passenger compartment. Feedback control is achieved through a state estimator and an optimal control law matrix.

• Corporate Authors:

  American Institute of Aeronautics and Astronautics

  1290 Avenue of the Americas
  New York, NY  United States  10019
• Authors:
  • Furman Jr, J E
  • Hartz, B J
  • CLARK, R N
• Publication Date: 1977-2

Media Info

• Features: References;
• Pagination: p. 118-123
• Serial:
  • Journal of Spacecraft and Rockets
  • Volume: 14
  • Issue Number: 2
  • Publisher: American Institute of Aeronautics and Astronautics

Subject/Index Terms

• TRT Terms: Dynamic tests; High speed ground transportation; Intelligent transportation systems; Rapid transit; Suspension systems
• Uncontrolled Terms: Dynamic analysis
• Old TRIS Terms: Advanced systems; Terrafoils
• Subject Areas: Operations and Traffic Management; Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00165175
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Dec 27 1982 12:00AM