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Gearbox Prognostics Simulator

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SpectraQuest’s Gearbox Prognostics Simulator (GPS) has been specifically designed to simulate industrial gearbox for diagnostics and prognostics research. The GPS gearbox consists of a two-stage parallel shaft test gearbox with rolling or sleeve bearings, which can be configured with a gear ratio from 1 to 6. The gearbox can be submitted to a torque large enough to induce wear and damage in the gears. All elements of the GPS have been designed to maximize the number of gearbox configurations to investigate gearbox dynamics and acoustic behavior, health monitoring, and vibration based diagnostic and prognostics techniques. It is robust enough to handle heady loads and spacious enough for easy gear placement, setup, and installation of monitoring devices.

Gear and Bearing Fault Diagnostics and Prognostics

The effect faults like surface wear, crack tooth, chipped tooth and missing tooth can be demonstrated and induced on either spur gears or helical gears. Rolling element bearing faults like inner race, outer race, and ball damage can also be incorporated. Adjustable clearance to study backlash is possible: increasing the amount of backlash is without major consequence, and reducing backlash can result in binding and/or excessive operating temperatures. Gearbox misalignment can also be introduced intentionally in the GPS. Any of these faults can be added to the gearbox one at a time, or simultaneously to study fault interactions. Both torsional and radial loadings can be applied to study damage signature or propagation in gears and/or bearings: the torsional load is applied via a 10 HP variable frequency AC drive with a programmable, user-defined speed profiles; and the radial load is applied to a shaft in the parallel gearbox. With the programmable load drive, load fluctuations can be applied to simulate real life loading conditions.