A TECHNIQUE FOR MEASURING VEHICLE DYNAMIC WHEEL LOADS

A vehicle travelling along anything other than a perfectly flat and horizontal road surface will, due to excitation of its suspension, apply dynamic wheel loads to the road which vary about its static wheel loads. These variations influence the vehicle's ride and roadholding ability and also its ability to damage road structures, and to generate vibrations in bridges and in buildings adjacent to the road. The report describes a technique for measuring dynamic wheel loads using vehicle-mounted instrumentation. The vehicle's axle is instrumented with strain gauges and accelerometers and their outputs are combined to provide a measure of dynamic wheel load. The technique is shown to give values of dynamic wheel load within about plus or minus 10 per cent of those given by the TRRL dynamic weighbridge, provided the axle motion comprises 'parallel hop' and does not contain a significant 'tramp' component. /Author/TRRL/

• Corporate Authors:

  Transport and Road Research Laboratory

  Environment Division, Old Wokingham Road
  Crowthorne RG11 6AU, Berkshire,   England 
• Authors:
  • PAGE, J
  • Grainger, J W
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Accelerometers; Axle load force; Axles; Dynamic loads; Dynamics; Equipment; Loads; Loss and damage; Measurement; Measuring instruments; Mechanical acceleration; Methodology; Pavements; Smoothness; Strain gages; Suspension systems; Suspensions; Vehicles; Vibration; Wheels
• Old TRIS Terms: Pavement smoothness
• ITRD Terms: 5405: Acceleration; 6155: Apparatus (measuring); 1322: Axle; 1614: Damage; 5473: Dynamics; 3071: Evenness; 1088: Inland waterway; 5567: Load; 6136: Measurement; 9102: Method; 5562: Strain gauge; 1329: Suspension (veh); 5558: Vibration; 1372: Wheel
• Subject Areas: Design; Highways; Pavements; Safety and Human Factors; Vehicles and Equipment; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00096502
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: TRRL 98 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Jul 15 1975 12:00AM