DESIGN DATA FOR HEAVY VEHICLES
Vehicles which are required to carry very heavy concentrated loads, e.g. up to 400 ton, need to be designed to a minimum gross weight to enable them to operate as far as possible within the limitation of roads, bridges, etc. The basic vehicle weight could be minimised by using high strength materials. Welded joints in such materials tend to have the same fatigue strength as the lower strength materials, so that if fatigue strength is already a design criterion it might not be possible to take full advantage of high strength materials. The investigation described in the paper was carried out to measure fluctuating stresses on a trailer with a 300-ton load during a delivery movement. This required the installation of strain gauges and mobile recording equipment for retrieving full data over long periods of the journey which included a journey by sea. Assessment of the measurements required that the speed of travel was known accurately and it was found that existing devices were insufficiently accurate at the low speeds employed. A much more accurate speed measuring device was therefore developed for this operation. The results demonstrated the importance of correct loading and adjustment of the vehicle suspension system. The final conclusions of the exercise were that fatigue damage was unlikely to be a design criterion in respect of high strength materials. /Author/ /TRRL/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0853346429
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Supplemental Notes:
- Papers presented at the Annual Conference of the Stress Analysis Group of the Institute of Physics held at the University of Ashton, Birmingham, England.
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Corporate Authors:
Applied Science Publishers Limited
22 Rippleside Commercial Estate, Ripple Road
Barking, Essex, EnglandJohn Wiley & Sons, Incorporated
111 River Street
Hoboken, NJ United States 07030-6000 -
Authors:
- Woodlay, C C
- Piggot, B R
- Gibbs, H G
- Richards, T H
- Conference:
- Publication Date: 1975
Language
- English
Media Info
- Features: Figures; Tables;
- Pagination: p. 473-481
Subject/Index Terms
- TRT Terms: Conferences; Delivery service; Fatigue (Mechanics); Heavy vehicles; Loads; Motion; Speed; Strain gages; Stresses; Structural analysis; Suspension systems; Trailers; Vehicle design; Weight; Welding
- Uncontrolled Terms: Heavy
- ITRD Terms: 1058: Air space; 8525: Conference; 284: Delivery; 5579: Fatigue (mater); 9028: Heavy; 5567: Load; 1078: Lock (waterway); 5483: Movement; 5408: Speed; 5562: Strain gauge; 5573: Stress analysis; 1329: Suspension (veh); 3852: Welding
- Subject Areas: Design; Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 00137806
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- ISBN: 0 85334 642 9
- Report/Paper Numbers: Proceeding
- Files: ITRD, TRIS
- Created Date: Apr 27 1977 12:00AM