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A Force and Energy Analysis: Vehicle Extraction with a Tow Strap
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English
Abstract
More and more stores and catalog mail order houses have been offering the consumer a new type of towing device. Braided ropes and woven straps are being sold as replacements for towing chains and cables. Usually made from polypropelene or similar materials, they are strong, lightweight, inexpensive and easy to use. Unfortunately they are also easy to misuse; serious accidents have occurred. This paper presents a force, deflection and energy analysis of these straps in some idealized, but typical situations. It is shown that the relatively high strength but low flexibility can lead to point-of-attachment failures.
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Topic
Citation
Brach, R., "A Force and Energy Analysis: Vehicle Extraction with a Tow Strap," SAE Technical Paper 860018, 1986, https://doi.org/10.4271/860018.Also In
References
- Madigan, Tom “Snatch-Urn Strap,” Off Road Magazine December 64 65
- SAE Standard J684f SAE Warrendale, Pennsylvania
- “Minimum Requirements for Motor Vehicle Connecting Devices and Towing Methods,” Vehicle Equipment Safety Commission Washington, “DC July 1977
- Paul, W. “Failure of a Nylon Strap Tow Connection,” Technical Report 0258 Annapolis, MO 1985
- Thomson, W.T. Theory of Vibration with Applications Prentice-Hall Englewood Cliffs 1981