SIMULATION OF TRACTORS FOR TRANSIENT RESPONSE

THE PROCEDURE IS PRESENTED FOR MODELING A TRACTOR IN THE TIME DOMAIN AND EXAMPLES ARE GIVEN OF INFORMATION REAPED FROM THE SIMULATION PROCESS. THE VEHICLE IS REPRESENTED BY SEVERAL RIGID BODIES, AND EQUATIONS OF MOTION ARE INDICATED IN TERMS OF KINETIC, POTENTIAL, AND DISSIPATIVE ENERGY FUNCTIONS. TRANSIENT SIMULATION RESULTS ILLUSTRATE THE DYNAMIC BEHAVIOR OF THE VEHICLE TRAVERSING A PARTICULAR BUMP ON SIDE SLOPES OF VARIOUS INCLINATIONS. EFFECTS OF CHANGES IN TIRE PROPERTIES, FORWARD SPEED, AND OTHER VEHICLE PROPERTIES ARE ILLUSTRATED. A COMPARISON OF THREE AND NINE DEGREE-OF-FREEDOM MODELS DISCLOSES THE NECESSITY OF CAREFUL MODELING. /BPR/

• Supplemental Notes:
  • Hpr-1(4), IHR-58
• Corporate Authors:

  University of Illinois, Urbana-Champaign

  Urbana, IL  United States  61801

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Pershing, R L
  • Yoerger, R R
• Publication Date: 1968-12

Subject/Index Terms

• TRT Terms: Degrees of freedom; Dynamics; Equations; Kinetic energy; Mathematical models; Motion; Potential energy; Roughness; Simulation; Slopes; Speed; Studies; Tires; Truck tractors; Vehicle dynamics
• Uncontrolled Terms: Dynamic characteristics; Models
• Old TRIS Terms: Motion studies
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00222574
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS
• Created Date: Mar 5 1994 12:00AM