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Optimized Damping to Control Rear End Breakaway in Light Trucks
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English
Abstract
Rear end break-away, or skate, is a phenomenon that occurs when live axle equipped vehicles are driven aggressively on rough, winding roads. This paper reviews instrumented dynamic testing of a specially built vehicle. Initial testing linked skate to the tramp oscillation mode of the rear axle. Two variables were evaluated for reducing skate: shock absorber valving and shock absorber placement. The principal conclusion of this work is that although some reductions in skate are possible by adjusting shock absorber valving, optimum control of skate is facilitated by packaging the shock absorbers near the wheels.
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Citation
Kramer, K., Janitor, W., and Bradley, L., "Optimized Damping to Control Rear End Breakaway in Light Trucks," SAE Technical Paper 962225, 1996, https://doi.org/10.4271/962225.Also In
References
- Barak, P. “Magic Numbers in Vehicle Design” SAE Paper 911921 1991
- Reyes, R. “Vehicle Skate” Ford Motor Company 1993
- Ahlman, s. “Light Truck Advanced Skate Study” Ford Motor Company 1995
- Gillespie, T. D. “Fundamentals of Vehicle Dynamics” SAE 1992