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The Benefits of Tridem Axle Groups for Log Truck Application
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English
Abstract
The use of tridem axle groups for heavy commercial trailers was spawned by the Roads and Transportation Association of Canada (RTAC) research of the 1980s and is now commonplace on semi-trailers and B-trains in Canada. The Western Canadian log transportation sector employs a number of industry-specific configurations that are fundamentally different in design and operation to those studied in the RTAC research. Over the last decade, this sector has met the challenge to improve productivity by adding more axles to the trailing system of the traditional 5-axle tractor/pole trailer combination. Although productivity gains were realized with the addition of more trailing axles, both dynamic performance and vehicle mobility were reduced. Where tridem axle groups are used as an alternative to the multi-articulated three and four axle trailer assemblies, dynamic stability is improved and where tridem drive axle groups are used, mobility is also improved. This paper describes the research results from a number of tridem-related projects undertaken by the Forest Engineering Research Institute of Canada.
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Authors
Citation
Amlin, E., "The Benefits of Tridem Axle Groups for Log Truck Application," SAE Technical Paper 962238, 1996, https://doi.org/10.4271/962238.Also In
References
- Roads and Transportation Association of Canada (RTAC) 1986 Vehicle Weights and Dimensions Study RTAC Ottawa, Ont. 16v
- Memorandum of Understanding on Interprovincial Heavy Vehicle Weights and Dimensions 1988 Roads and Transportation Association of Canada Ottawa
- Tong, X Tabarrock, B El-Gindy, M. 1995 Computer Simulation Analysis of Canadian Logging Trucks National Research Council Canada, Centre for Surface Transportation Technology Ottawa 257
- Preston-Thomas, J. 1994 Measured Characteristics and Dynamic Performance of Two Configurations of Western Canadian Log Truck National Research Council Canada, Centre for Surface Transportation Technology Ottawa 63
- Parker, S.P.S. 1995 Log-Transportation Requirements in Western Canada, 1992-2002: A Survey FERIC Vancouver 13
- Preston-Thomas, J. Wong, J.Y. 1989 The Gradeability of Logging Trucks, Final Report Vehicle Systems Development Corporation Ottawa 179
- Amlin, E. Klawer, P. Hart, D.V. 1995 Evaluation of a Tridem Drive Tractor for Log Transportation FERIC Vancouver 27
- Sessions, John Stewart, Rod Anderson, Paul Tuor, Brian Calculating the Maximum Grade a Log Truck Can Climb in Western Journal of Applied Forestry 1 2 43 45