IDENTIFICATION OF VEHICLE AND COLLISION IMPACT PARAMETERS FROM CRASH TESTS

A group of 12 staged and instrumented car collisions was conducted in the mid 1970's for the National Highway Traffic Safety Administration. These were two-vehicle collisions with a variety of initial speeds, vehicle orientations, and vehicle size mixes. Initial speeds were controlled and velocity components including angular velocities at separation, were measured. Inclusion of a moment, and introduction of a moment coefficient of restitution, allows the formulation of a planar collision model consisting of six algebraic equations relating the six initial velocity components of the two vehicles to their six final velocity components. This paper discusses the application of the theory of least squares to fit the experimentally determined components to the six equations of the vehicle model. (TRRL)

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Brach, R
• Publication Date: 1984-4

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 263-69
• Serial:
  • J Vibra, Acoustics, Stress & Reliability in Design
  • Volume: 106
  • Publisher: American Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Angular velocity; Angularity; Crash tests; Crashes; Dynamics; Mathematical models; Measurement; Motor vehicles; Regression analysis; Speed; Traffic speed; Vehicle size; Vehicles; Velocity
• Uncontrolled Terms: Orientation
• ITRD Terms: 5945: Angularity; 1631: Collision; 5473: Dynamics; 1648: Impact test (crash); 6473: Mathematical model; 6136: Measurement; 6588: Regression analysis; 5408: Speed; 1255: Vehicle
• Subject Areas: Data and Information Technology; Highways; Research; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00393324
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jun 30 1985 12:00AM