UROP Project

Fault Detection in Spur Gears Using Embedded Wireless Accelerometers

Development of Low-Cost MEMS accelerometers allows their integration into individual components of transmission gearboxes. Such accelerometers detect local vibration from the component they are embedded in. The objective of this project is to evaluate the advantages of using such embedded accelerometers in detecting gear tooth cracks, shaft misalignment errors, and gear tooth wear.

Task

The interns will utilize a laboratory test rig comprised of three shafts, coupled with two pairs of spur gears and a torque coupler. The torque coupler allows application of different pre-load levels into a closed loop system. Experiments at various RPM, pre-load levels, and degree of induced damage or shaft misalignment will be carried out using a wireless accelerometer attached to one of the shafts. The interns will evaluate the acquired vibration data using FFT transforms, time-domain analysis, and will develop mathematical models of the observed behavior.

Requirements

Required technical skills include two or more of the following: - Ability to use standard laboratory test instrumentation - Ability to use MATLAB Signal Processing Tool Box - AutoCAD 2D and 3D drawing. - Familiarity of FEA code such as ANSYS Successful applicants should be "team players", i.e. they are expected to be willing to work with other students, receive training and be willing to commit their time to train and assist fellow lab mates.

Full Address

The University of Arizona
1130 N. Mountain Ave.
AZ 85721 Tucson
USA
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