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Health Monitoring of Cracked Rotor Systems using External Excitation Techniques

Wroblewski, Adam Christopher
http://rave.ohiolink.edu/etdc/view?acc_num=csu1228312469

Abstract Details

2008, Master of Science in Mechanical Engineering, Cleveland State University, Fenn College of Engineering.
Cracked rotors present a significant safety and loss hazard in nearly every application of modern turbomachinery. This thesis focuses on the health monitoring, modeling, and analysis of machines with transverse breathing cracks, which open and close due to the self-weight of the rotor. After considering the modeling of cracked rotors, the thesis investigates an active structural health monitoring approach, focusing on the application of an active magnetic actuator to apply a specially designed external force excitation to the rotating shaft. Extensive experimental data has been collected and analyzed utilizing advanced diagnostic techniques. The presented results demonstrate that the use of a magnetic force actuator to apply external excitation has potential in the diagnostics of cracked rotors. The observed unique crack signatures demonstrate the ability of the method for early diagnosis of transverse rotor cracks.
Jerzy Sawicki, PhD (Advisor)
John Frater, PhD (Committee Member)
Ana Stankovic, PhD (Committee Member)
120 p.
Mechanical Engineering
Rotordynamics; Turbomachinery; Active Magnetic Bearings; Health Monitoring; Shaft Crack; Cracked Rotor; Breathing Crack; Magnetic Actuator; External Excitation; Transverse Rotor Crack;

Recommended Citations

Citations

  • Wroblewski, A. C. (2008). Health Monitoring of Cracked Rotor Systems using External Excitation Techniques [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1228312469

    APA Style (7th edition)

  • Wroblewski, Adam. Health Monitoring of Cracked Rotor Systems using External Excitation Techniques. 2008. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1228312469.

    MLA Style (8th edition)

  • Wroblewski, Adam. "Health Monitoring of Cracked Rotor Systems using External Excitation Techniques." Master's thesis, Cleveland State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=csu1228312469

    Chicago Manual of Style (17th edition)

csu1228312469
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© 2008, all rights reserved.
This open access ETD is published by Cleveland State University and OhioLINK.