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Review of all the topics and exam preparation

Basic Vibration Analysis and diagnosing common fault conditions

  • Overall level measurements
  • Spectrum analysis
  • Unbalance in a rotor
  • Misalignment
  • Looseness
  • Making of simple vibration reports

Know your rotating machines before analysis

  • Fans
  • Pumps,
  • Motors and Generators
  • Gearbox
  • Turbines (Steam and Gas turbines)
  • Compressors
  • CNC machine tools/CNC high speed spindles
  • Structures and piping
  • Belts and Couplings
  • Antifriction and Journal bearings

Data acquisition

  • Instrumentation and its usage
  • Dynamic range, signal to noise ratio
  • Different types of transducers/ sensors
  • Selection of transducers/sensors
  • Different types of FFT analysers
  • Single, 2 channel and multi channel analysers
  • Sensor mounting and its importance
  • Horizontal, vertical and axial measurements
  • Measurement point selection
  • Best Data collection techniques
  • Importance of Fmax
  • Loading of route/surveys
  • Recognition of poor data and ski slope
  • Best utilization of time in the field/route survey

Principle of vibrations

  • Period and frequency
  • Amplitude (RMS, Peak, Peak-Peak)
  • Parameters (Displacement, Velocity and Acceleration
  • Unit Conversion
  • Time and Frequency Domain
  • Modulation
  • Phase and its importance
  • Natural frequency, resonance and Critical speeds
  • Force, Response, mass, stiffness and damping
  • Basic forcing frequency calculations

Condition Monitoring Technologies

  • Brief introduction to Vibration analysis
  • Oil or wear debris analysis
  • NDT methods
  • Acoustic emission
  • Motor current signature analysis
  • Thermography

Maintenance Practices

  • Breakdown Maintenance
  • Preventive Maintenance
  • Reliability Centered Maintenance (RCM)