Diagnostic Systems

Lecturer:

Tutor:

Supervisor:

Department of Measurement

Synopsis:

Methods for nondestructive testing and electrical diagnostics, advanced signal processing methods (envelope, cepstral and order analysis), application of fuzzy logic, neuronal networks, vibrodiagnostics, defectoscopy, in-circuit testing for analog and digital circuits. Implementation of diagnostic systems in computer aided labs.

Requirements:

Syllabus of lectures:

1. Basic terms, diagnostic systems, quantities and models

2. Measuring systems for vibrodiagnostics, sensors and interfaces

3. Sources of vibration, shaft, bearing and gear-box diagnostics

4. Signal preprocessing and analysis methods, filtering

5. Frequency and time domain analysis of vibrodiagnostic signals, time-frequency analysis

6. Diagnostics based on evaluation of impulse and continuous acoustic emission

7. Ultrasonic testing of material, methods, probes, evaluation

8. Electromagnetic, magnetic and eddy current methods for nondestructive testing

9. Optoelectronic diagnostic systems: holographic methods, radiography, endoscopy, thermovision

10. Diagnostic methods based on acoustic analysis, sound intensity

11. Introduction to diagnostics of electronic circuits, models of faults

12. In-circuit testers for printed-circuits boards

13. Analog and digital signature analysis of electronic circuits

14. Application of neural networks, fuzzy logic and expert systems in diagnostics

Syllabus of tutorials:

1. Basics of vibration measurement

2. Measurement and evaluation of sensor characteristic

3. Analysis of vibrodiagnostic signal from gear-box, cepstral and envelope analysis

4. Kinematics of shaft, orbit, corbit, ovality

5. Acoustic emission of bearing, signal processing

6. Digital ultrasonic defectoscope, types of probes

7. Nondestructive testing of mechanical parts using eddy-current method

8. Quiz, project assignement

9. Project

10. Project

11. Project

12. Project

13. Project presentation

14. Project presentation, assessment

Study Objective:

Study materials:

1. Gertler, J.: Fault Detection and Diagnosis in Engineering Systems. Dekker, 1998

2. The Vibration Analysis Handbook. Vibration Consultants, Inc., 1994

3. Nondestructive Testing Handbook. Vol.9, Special Nondestructive Testing Methods, ASNT, USA, 1995

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Cybernetics and Measurements - Control Engineering- structured studies (compulsory course)
• Cybernetics and Measurements - Artificial Intelligence- structured studies (compulsory course)
• Cybernetics and Measurements - Measurement and Instrumentation Systems- structured studies (compulsory course)
• Cybernetics and Measurements - Aeronautical Engineering and Control Systems- structured studies (compulsory course)