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An Electrohydraulic Seat Suspension System for Off-Highway Vehicles
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English
Abstract
This paper reports on the development of an active seat suspension system to reduce the terrain-induced whole-body vibration to which operators of off-highway vehicles are exposed.
A literature review of the effects of prolonged exposure to whole-body vibration, in terms of health risks and reduced productivity, is presented.
The specifications for an active seat suspension system, based on acceleration measurements on forestry vehicles, are outlined.
The design of the system, which consists of a hydraulic actuator, electrohydraulic valve, accelerometer and microprocessor controller, is presented. laboratory evaluations of the system, using field data fed into a shaker stand, are discussed.
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Authors
- F.G. Lang - College of Engineering University of Saskatchewan Saskatoon, SK Canada
- T.G. Kirk - College of Engineering University of Saskatchewan Saskatoon, SK Canada
- A. McCormac - College of Engineering University of Saskatchewan Saskatoon, SK Canada
- R.J. Wilson - College of Engineering University of Saskatchewan Saskatoon, SK Canada
- J.N. Wilson - College of Engineering University of Saskatchewan Saskatoon, SK Canada
Topic
Citation
Lang, F., Kirk, T., McCormac, A., Wilson, R. et al., "An Electrohydraulic Seat Suspension System for Off-Highway Vehicles," SAE Technical Paper 881279, 1988, https://doi.org/10.4271/881279.Also In
References
- Matthews, J. “Ride Comfort For Tractor Operators” J. of Agric. Engrg. Res. 9 1964 3
- Rosegger, R. Rosegger, S. “Health Effect of Tractor Driving” J. of Agric. Engrg. Res. 5 3 1960 241
- Suggs, D.W. Stikeleather, L.F. Abrams, C.F. “Field Tests of An Active Seat Suspension for Off-Road Vehicles” Trans. ASAE 13 5 1970 611
- Grimm, E.A. Wilson, J.N. Huff, G.J. Ukrainetz, P.R. “Further Studies on An Active Seat Suspension System for Off-Road Vehicles” Canadian Society of Agricultural Engineering Annual Meeting Brandon, Manitoba June 22-26 1975
- Griffin, M.J. Lewis, C.H. “A Review of the Effects of Vibration and Visual Acuity and Continuous Manual Control, Part I: Visual Acuity” Journal of Sound and Vibration 56 3 383 413 1978
- Howat, M.G. “Exposure of Front-End leg load Operators to Whole-Body Vibration” Technical Note No. TN-25 Forest Engineering Research Institute of Canada 201-2112 West Broadway, Vancouver December 1978
- Webb, R.D.G. Hope R.A. “Ergonomics and Skidder Operations in Northern Ontario: A Preliminary Investigation” Canadian Forestry Service, Environment Canada Information Report DPC-X-15 1983 4
- Hornick, R.J. “Effects of Tractor Vibration on Operators” Agricultural Engineering December 1961
- International Standards Organization “Guide For Evaluation of Human Exposure to Whole-Body Vibration” ISO 2631 1978
- Borg, R. Dbmier, K.W Stephanson, B.T. “Vibration levels on Self-Propelled Swathers and combines” University of Alberta, Department of Agricultural Engineering Report March 1975
- Gerke, F.G Hoag, D.L. “Measurement of Tractor Vibrations at the Operator's Station” American Society of Agricultural Engineers Summer Meeting Winnipeg June 24-27 1979
- “Development of an Active Seat Suspension System for Off-Road Forestry Vehicles”, (UP-S-484) Final Report to Canadian Forestry Service Division of Control Engineering, University of Saskatchewan February 1986
- McCormick, Ernest J. Human Factors in Engineering and Design 4th McGraw Hill Inc. 383 389 1976
- Lins, W.F. Dugoff, H. “Motion Simulation and Its Application to Ride Dynamics Research” Society of Automotive Engineers SAE 720003 January 1972
- Dupuis, H. Christ, W. “Study of the Risk of Spinal Damage to Tractor Drivers” Report Max Planck - Institut Landarb. Land tech., Bad Kreuznach 1966
- Milby, T.H. Spear, R.C. “Relationship Between Whole-Body vibration and Morbidity Patterns Among Heavy Equipment Operators” H.E.W. 1974
- Saskatchewan Workers' Compensation Board 1980 Annual Report, Government of Saskatchewan
- Correspondence from G.P. Chin, Manager, Eastern Division Forest Engineering Research Institute of Canada Pointe Claire, Quebec to D.V. Myles, Manager, Industrial Relations Environment Canada, Canadian Forestry Service Ottawa, Ontario Nov. 26 1981
- “Whole-Body Vibration” The Lancet Little, Brown and Company Boston, Mass. May 14 1977 1040 1041
- Kam, J.K. “Effect of Whole-Body Vertical Vibration on Manual Dexterity Test Results” American Industrial Hygiene Association Journal July 1981 556 557
- Ho, W.K. Gunderson, D.G. Burton, R.T. Wilson, J.N. “Microprocessor Controlled Active Seat Suspension System for Off-road Vehicles” Proceeding of National Conference on Fluid Power Chicago December 1984
- Ho, W.K. “Microprocessor Controlled Active Seat Suspension System for Off-road Vehicles” M.Sc. Thesis Department of Computational Science and the Division of Control Engineering, university of Saskatchewan Saskatoon, Canada 1984
- Stikeleather, L.F. “Operator Seats for Agricultural Equipment” ASAE Distinguished Lecture Series American Society of Agricultural Engineers December 1981
- Tremblay, M.L. “An Active System for Isolating Lateral Whole-body Vibration” M.Sc. Thesis Department of Mechanical Engineering and Division of Control Engineering, University of Saskatchewan Saskatoon, Canada March 1986