Date of Award
Summer 2003
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Mechanical & Aerospace Engineering
Program/Concentration
Aerospace Engineering
Committee Director
Thomas E. Alberts
Committee Member
Robert Ash
Committee Member
Gary P. Gibbs
Committee Member
Chuh Mei
Call Number for Print
Special Collections; LD4331.E535 L589 2003
Abstract
A condition-based monitoring concept for rolling element bearings in machinery utilizing a piezoelectric load sensor is investigated in this thesis. The radially polarized cylindrical piezoelectric sensor is modeled in its specific coordinates. The sensor registers the stress occurring in all directions around it. The sensor's behavior due to several typical loads is analyzed. Based on the induced stresses in the sensor, the sensor's output as an electric charge can be obtained using the method of integration.
Considering both the normal and tangential loads distributed on the rolling beating's roller-raceway contact surface, the dynamic stress distribution in the outer raceway was analyzed. The load cycles due to several rollers' effects, which the sensor inse1ted in the raceway experiences, was investigated and the ideal sensor response in load cycles obtained. Comparing these analytical load cycles, the ideal beating signature, with the actual signal in the beating's operation can provide an indication of faulty bearing conditions or improper lubrication and can determine the health condition of the bearing. Comparison of the results reveals that the analytical results match the experimental response closely. The differences between analytical and experimental results are discussed and possible future work is stated.
Rights
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DOI
10.25777/mvf7-z797
Recommended Citation
Liu, Yinyin.
"Piezoelectric Sensor in the Application of Rolling Bearing Health Monitoring"
(2003). Master of Science (MS), Thesis, Mechanical & Aerospace Engineering, Old Dominion University, DOI: 10.25777/mvf7-z797
https://digitalcommons.odu.edu/mae_etds/601