Mimic helps avoid maintenance-induced machinery failure

Through the correct application of Mimic condition monitoring (CM) as part of a wider condition-based maintenance (CBM) strategy, the risk and impact of maintenance-induced machinery failures can be minimised or even avoided.

Discover how in the case study below.

Machinery: Main engine oil pump

Sensor data used: Vibration

Before overhaul: Machinery operating within normal vibration limits - no requirement to perform maintenance.

Planned overhaul: Full overhaul of machinery conducted, as per planned maintenance schedule.

Post overhaul: Mimic CM technology detected vibration readings well above defined thresholds, sending the machine into alarm. Further inspection/overhaul is now required, or there is a high risk of machinery failure.

Scenario learnings

  • Scheduled planned maintenance is not always required due to the actual functioning condition of the machinery.
  • Performing unnecessary maintenance can lead to wasted labour hours and spare parts.
  • Planned maintenance can lead to maintenance-induced failure.
  • CM can identify early onset of machinery failure.
  • Reviewing all CM information prior to intrusive maintenance work can mitigate the decision to defer the task.
  • Importance of gaining Classification Society CM notation - the planned maintenance activity could be replaced by CBM, so maintenance would only take place when the condition of the machinery dictates.