FOCISTM software controls the data collection and data analysis processes.

Test Setup

FOCISTM software allows precise configuration of each rotor stage, setup of the probes and control of their function (blade tip timing, blade tip clearance, or both) through a graphical interface.

 
Picture Above: Rotor Stage Configuration

 

Signal Monitoring

The FOCISTM software enables verification of probe operation, and verification of the signals collected.

Scan of optical probes data
Picture Above: Verification of Probe Signal Quality

 

Clearance Measurement

FOCISTM software can output clearance measurement as average or blade-by-blade information.

blade by blade visualization of blade tip clearance
Picture Above: Blade-by-blade clearance visualization

 

Blade Tip Timing and Vibration Analysis

FOCISTM software enables blade tip timing data collection and test monitoring.  Data is then exported to BT post-processing software for blade vibration analysis.

Output of blade vibration monitoring system
Picture Above: Examples of plots of blade vibration results (Campbell, Magnitude, Frequency, and Phase)

Gene­rate Plots of Recor­ded Parameters

  • Rela­tive & Absolute blade posi­tion
  • Deflec­tion (including auto­ma­tic deter­mi­na­tion of deflec­tion based on poly­no­mial curve fit to remove the static blade posi­tion)
  • RPM
  • History, Campbell, and Waterfall plots are available

Analy­sis Modules

  • Asyn­chro­nous analy­sis
    • All blades FFT
    • Iden­ti­fi­ca­tion of nodal diame­ter response and flut­ter events
    • Frequency, magni­tude & phase for the stage
  • Synchro­nous analy­sis:
    • Iden­tify respon­ding engine orders via sine wave fit for all probes on a per rev basis
    • Frequency, magni­tude & phase for all blades

 

Find Out More

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