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Home » Full-Load Testing of Large Gearboxes Using Closed-Loop Power Circulation

Full-Load Testing of Large Gearboxes Using Closed-Loop Power Circulation

September 1, 1991
This method of testing large gearboxes or, indeed, any power transmission element, had numerous advantages and offers the possibility of large savings in time, energy, and plant, if the overall situation is conducive to its use. This usually requires that several such units need to be tested, and that they can be conveniently connected to each to each other in such a way as to form a closed-loop drive train. No power sink is required, and the drive input system has only to make up power losses. The level of circulating power is controlled by the torque, which is applied statically during rotation, and the drive speed. Principles, advantage, and limitations are described, together with recent experiences in the only known large-scale usage of this technique in Australia.
Inspection Testing Technical
KEYWORDS closed-loop gear drives gearbox test rig testing
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