| 摘要 |
An apparatus and method for fatigue stress testing a vehicle wheel or the like includes a plate to which the wheel is mounted, and a clamping system for maintaining the wheel stationary. The clamping system fixes the vertical and lateral position of both the upper and lower lips of the wheel, to replicate operating conditions. A nonrotatable shaft is connected to the plate through a bushing. The shaft is connected at a point spaced from the plate to a rotating lateral loading assembly, which rotates relative to the shaft. The lateral loading assembly exerts a lateral force on the shaft simultaneous with rotation of the assembly, so as to cause wobbling of the shaft, which is transferred through the stress plate to the wheel.
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