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Tire Deflection Influence on Rear-Axle Torque
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English
Abstract
Data were obtained on an 18-wheel western-type log truck with central tire inflation (CTI) and carrying a highway load. Operating on grades of 20 and 25 percent, drive shaft torque was monitored to quantify stress levels on the drive train while varying tire deflection. Information is provided on the limits of additional traction to be gained through the use of tire deflection when operating on steep terrain-without excessive tire slip or vehicle maintenance.
Using the proper tire deflection (based on speed and load) appears feasible through the use of CTI systems. Benefits have been seen in reduced vehicular damage to forest roads and increased tire life plus improved traction on some road surface types because of the increased tire tread length.
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Authors
Citation
Simonson, B., "Tire Deflection Influence on Rear-Axle Torque," SAE Technical Paper 933029, 1993, https://doi.org/10.4271/933029.Also In
Central Tire Inflation Systems Managing the Vehicle to Surface
Number: SP-1061; Published: 1994-11-01
Number: SP-1061; Published: 1994-11-01
References
- Frietag D.R. A Dimensional Analysis of the Performance of Pneumatic Tires On Soft Soils Technical Report 3-688 U.S. Army Corps of Engineers, Waterways Experiment Station Vicksburg, Miss. 1965
- Della-Moretta L. Proof of Concept Tests for Central Tire Inflation U.S. Department of Agriculture, Forest Service San Dimas, Calif. 1984
- Anderson P. A Survey of Design, Construction, and Operation Practices for Steep Roads in the Oregon Coast Range Oregon State University Corvallis 1985
- Rebar M. Rickard H. National Central Tire Inflation Program Mapleton Ranger District Field Operational Demonstration Prong Flight Timber Sale CTI Siuslaw National Forest Corvallis. Oreg. 1988
- Drive Traction Characteristics of Trucks and Truck Combinations Western Highway Institute San Francisco, Calif. 1976
- Stryker E.A. Gradeability of Log Trucks Oregon State University Corvallis, Oreg. 1977
- Gililland E. Ryburn W. Reduce Tire Pressure On Forest Service Roads Through Central Tire Inflation Systems Proc., Council on Forest Engineering Sept. 1986 Mobile, Ala. 1986
- Engineering Design Information Tire and Rim Association, Inc. Akron, Ohio 1987
- Tire and Rim Association Yearbook Tire and Rim Association. Inc. Akron, Ohio 1987
- Cohn A.E. Application of CTI/VTP Technology Goodyear Tire and Rubber Company Akron, Ohio 1989
- Taborek J.J. Mechanics of Vehicles: Machine Design Penton Publishing Cleveland, Ohio 1957
- Della-Moretta L. Hodges H. Off-Highway Tire/Road Damage and Healing Mechanisms ASAE Paper 86-1060 American Society of Agricultural Engineers St. Joseph, Mich. 1986
- Meyers P.S. The Diesel Engine for Truck Application SAE SP-391 SAE Warrendale, Pa. 1975
- Ashmore C. Sirois D. Influences of the Central Tire Inflation System on Log Truck Performance and Road Surfaces ASAE Paper 87-1057 American Society of Agricultural Engineers St. Joseph, Mich. 1987