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Predictive Maintenance Blog

Case Study: Addressing Structural Issues with Motion Amplification

One of our clients reached out to us after receiving their most recent vibration report and expressed concern about a cooling fan’s excessively high vibration amplitudes. After some discussion, ATS came on site to use the Iris M to take motion amplification video to determine if the excessive vibration was due to an unbalanced condition, looseness or lack of rigidity, or a combination of both conditions.

Video recordings were taken from multiple angles to best capture any potential structural or looseness issues. The videos were then reviewed and run through the motion amplification program to help isolate the locations showing movement. Multiple stages of repair were performed on the base and frame. Video recordings were made from the same angles after each stage of repair. Vibration data was recorded from this unit after each stage as well.

Here is an initial recording of a portion of the frame of the cooling fan:

The video on the left side is a standard video and what is observed with the naked eye. The video on the right has had the motion amplified to identify component movement. From the video, the nut of the bolt appears to be tight and does not allow upward movement. However, the grouting below the frame appears to be damaged or missing, allowing for excessive frame movement.

The next video shows the same section of the frame after the final adjustments were made:

 

The video and recorded vibration data showed a significant reduction in movement and amplitude.

This is just one example of the power of the Iris M’s motion amplification. In this case, it helped our client address a lingering issue on a critical piece of equipment. We are excited to continue to help our clients find solutions using the Iris M.