Optimized Damping to Control Rear End Breakaway in Light Trucks

Paper #:
  • 962225

Published:
  • 1996-10-01
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.
Pages:
8
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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