The CAT-II course is designed for professionals who have mastered the basics of vibration analysis and need to improve their skills in data collection, fault diagnosis, balancing, and alignment. The course covers advanced diagnostic techniques, vibration alarm settings, and the use of time waveform and phase analysis to accurately identify and verify machine faults.
Analytical Troubleshooting Understand the importance of frequency analysis in determining machinery defects. Recognize the importance of predetermining potential defect frequencies Identify the difference between synchronous, nonsynchronous and sub-synchronous faults. Review of Vibration Basics Describe the fundamentals of vibration theory covered in Vibration Analysis I or other basic vibration courses. Apply this information as a foundation for later discussions on vibration theory and fault types.
Effects of Amplitude and Phase Explain what phase is. Explain the phase shifts associated with amplitude units. Discuss the importance of transducer polarity. Unbalance Describe the spectral and waveform characteristics of unbalance. Associate the special conditions of vertically mounted equipment with the balancing process. Misalignment Identify misalignment based on spectral and waveform characteristics. Explain how to use phase to help distinguish misalignment from unbalance. Describe analysis techniques using single-channel data acquisition.
Looseness Identify looseness in machinery by examining both spectral and waveform data. mechanical and structural looseness. Antifriction Bearings Calculate the rolling element bearing defect frequencies. Recognize bearing defect frequencies in spectral data. Use the time waveform when diagnosing bearing defects. Determine defect severity based on spectral frequency patterns instead of spectral amplitude alone. Data Averaging Describe each of the averaging modes available in analyzers.
Nader Shafik Farah is Vice President of Engineering and Trainings at NATCOM, which he has helped build for over twenty years. A Cairo University engineering graduate, he leads the company's work in turbomachinery control, vibration monitoring and reliability — and personally instructs its ISO 18436 vibration analysis (Cat I–III) and condition-monitoring programmes, connecting the standards directly to real field practice.
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