Vibration Analysis

Vibration analysis is a technique which helps early detection of machine problems by measuring/evaluating vibration

Vibrations are caused by movement of components within the machine due to internal or external excitation.  Any small change in the machine behaviour shall change the vibration pattern of the machine.  Hence vibration monitoring and analysis provides reliable information on machine operating condition.

Knowing the severity of the problem, appropriate corrective action can be taken at the most appropriate time.

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All possible fault symptoms of rotating/reciprocating machines can be identified as mentioned below:

  • Unbalance (static, couple, quasi-static)
  • Misalignment (angular, parallel, skew)
  • Mechanical looseness, structural weakness, soft foot.
  • Bend shaft, Rotor eccentricity.
  • Resonance, best vibration.
  • Mechanical rubbing
  • Problems of belt-driven machines
  • Journal bearing defects.
  • Antifriction bearing defects (inner race, outer race, cage, rolling elements).
  • Hydrodynamic & Aerodynamic forces (blade of vane, flow turbulence, cavitations)
  • Gear problems (tooth wear, tooth load, gear eccentricity, backlash, gear misalignment, and cracked or broken tooth.