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Elastomeric Suspensions with Geometric Spring Rates for Off-Highway Vehicles
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English
Abstract
This paper describes an off-highway vehicle suspension using modular elastomer-bonded-to-metal impact cushioning pads. The modular impact pads are stacked inside telescoping struts which are connected between the axle and the frame. The rheology of the elastomer and the cross-sectional shape of the pads give a geometric load versus deflection curve, a near-linear spring rate versus load curve, and a near-constant frequency at any level of load. These characteristics limit excessive deflections and increase the stability and controllability of the vehicle. The modular impact pads are self-damping, dissipating a large percentage of the applied energy, and require no auxiliary shock absorbers. A wide range of spring functions and damping functions are possible by utilizing different elastomers, pad shape, pad sizes, and numbers of pads. Initial cost and weight are less than conventional springs and struts. Maintenance costs are negligible and service lives of more than 25,000 operating hours have been recorded between overhauls.
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Authors
Citation
McClelland, J., "Elastomeric Suspensions with Geometric Spring Rates for Off-Highway Vehicles," SAE Technical Paper 700738, 1970, https://doi.org/10.4271/700738.Also In
References
- Timoshenko S. “Strength of Materials.” 1 New York Van Nostrand 1940
- Hendrickson N. E. Fahnestock M. “Comparing Fundamentals of Spring Suspensions.” Paper 315 SAE National Transportation Meeting Cleveland March 1949
- “Handbook of Molded and Extruded Rubber.” Goodyear Tire and Rubber Co. Akron 1959
- Willison D. “Cushioning Device.” Natl. Castings Div. Midland-Ross Corp.
- Willison D. Spence H. L. “Cushioning Device.” Natl. Castings Div. Midland-Ross Corp.
- Zanow A. L. “Cushioning Device.” Natl. Castings Div. Midland-Ross Corp.
- Spence H. L. “Method of Stabilizing and Processing Cushioning Units.” Natl. Castings Div. Midland-Ross Corp.
- Doennecke H. C. “Wheel Suspension Mounting.” Unit Rig & Equip. Co. Tulsa
- Doennecke H. C. “Lateral Suspension Mounting.” Unit Rig & Equip. Co. Tulsa
- Doennecke H. C. “Suspension Mounting for a Wheeled Vehicle.” Unit Rig & Equip. Co. Tulsa