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The Design of a Suspension Parameter Identification Device and Evaluation Rig (SPIDER) for Military Vehicles
ISSN: 1946-391X, e-ISSN: 1946-3928
Published April 08, 2013 by SAE International in United States
Citation: Wagner, T., Andreatta, D., Heydinger, G., Sidhu, A. et al., "The Design of a Suspension Parameter Identification Device and Evaluation Rig (SPIDER) for Military Vehicles," SAE Int. J. Commer. Veh. 6(1):135-142, 2013, https://doi.org/10.4271/2013-01-0696.
This paper describes the mechanical design of a Suspension Parameter Identification Device and Evaluation Rig (SPIDER) for wheeled military vehicles. This is a facility used to measure quasi-static suspension and steering system properties as well as tire vertical static stiffness. The machine operates by holding the vehicle body nominally fixed while hydraulic cylinders move an “axle frame” in bounce or roll under each axle being tested. The axle frame holds wheel pads (representing the ground plane) for each wheel. Specific design considerations are presented on the wheel pads and the measurement system used to measure wheel center motion. The constraints on the axle frames are in the form of a simple mechanism that allows roll and bounce motion while constraining all other motions. An overview of the design is presented along with typical results.
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