Hydro Spray Pump
Before and After

A new 2 Pole Motor direct coupled Pump was installed to replace a 4 Pole Motor – Coupling – Pump arrangement to get a higher pressure spray. RDI’s Motion AmplificationTM (MA) technology clearly showed insufficient stiffness and support in the Motor-Pump frame. The Motor-Pump frame was modified and the lateral vibration levels were reduced by 80% from 10.2 mm/sec RMS to 2.0 mm/sec RMS.

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Stator Coolant Pump
Before and After Clip 1

Optical Motion Technologies (OMT) were contracted to apply RDI’s Motion AmplificationTM (MA) technology to assist in solving a long running problem on this Stator Coolant Pump. It was clear from the MA videos that the problem was a soft foot condition between the pump base frame and skid base plate.  –>

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Stator Coolant Pump
Before and After Clip 2

In fact, there was a twisting operational deflection shape of the pump base frame. During a scheduled outage, a series of fillet welds were made across the suction end the pump base frame to the skid base plate. When the pump was returned to duty service the high lateral motion and vibration had been reduced by more than 70% and was now less than 5 mm/sec RMS.

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Motor Rocking

A motor with a known vibration problem was brought to the attention of an RDI service provider. The data acquisition revealed a rocking motor. All bolts on the motor feet and base were tightened and did not improve the condition. Zooming in on the base near one of the back feet brought forth a surprise shown in the following video.

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Motor Crack

The zoomed in video revealed a broken weld, or crack just behind the rear foot. The weld was repaired and the condition was dramatically improved.

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Loose Structural Base

This facility was a robot testing facility that repaired and maintained robots used for automobile manufacturing.  They were concerned that this structural base was not properly functioning and that it was not supporting the robot properly.  The Motion Amplification videos showed that soft foot was occurring and that they needed to properly secure the base.

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Trainer Misalignment

This video is of a purposely misaligned trainer. Part of the way through the video you will see a portion of the video amplified to show the misalignment.

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Motion Amplification

When anyone starts using Motion Amplification, anything that moves is subject to being studied. This is true of this automobile engine, one of the most difficult assets to perform a vibration analysis on. The user setup and started the recording, then, as you can SEE in the motion amplified video, they sit in the driver’s seat. Notice that the car rocks as this occurs. The key is turned and the starter activates. Notice the starter cables move as the starter is energized. Then the engine starts and motion is everywhere.

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Motor / Blower Coupling

This is a close up view of a flexible coupling on a motor driven, multi-stage blower. The amplified motion shows a vibration in the axial direction of the coupled shafts. This may be caused be an angular misalignment. This critical machine could not be shutdown to check the alignment. The precision maintenance task has been scheduled for the next planned shutdown.

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Product Quality Steel Rolling Process

Process line, Bending and Flexing Creating Process Issues

Shaker Table

RDI took data on a rolling steel mill from up to 30 ft away.  The steel mill was experiencing costly product quality issues that it could not easily solve.  The equipment was large and outfitting it with sensors would have been time consuming and costly.  The company featured contacted RDI to help them solve their problem, and they were able to find out with a series of a few videos that their dampening system was not functioning properly.  During scheduled maintenance they were able to apply a temporary fix and increase product quality until an outage could be scheduled and a permanent fix could be put in place.

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The client featured in this video was having issues with product coming out of a standard classifier machine. They were going to contact the equipment manufacturer but wanted to troubleshoot the problem before contacting them.  With Motion Amplification they were able to find bending and flexing on part of the machine that was causing issues. They were also able to find more movement in the base than they expected.  With this information they grouted the base and made sure the equipment was properly installed before contacting the OEM for repairs.

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The left side is an image of the shaker table with motion amplification and the right side is what is visible to the human eye.

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What is Motion Amplification

How to collect a Motion Amplification reading

Press Water Pump System Analysis

The IRIS M system was used to survey two critical pumps which had a history of breakdowns and cracked pipework. The survey showed the root cause was poor base mounting of the pumps and ineffective bracing of the pipework. New pump bases were recommended (Concrete) and more effective bracing of the pipework.

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Structural Vibration

The IRIS M system was used to survey a plant structure, see the video for the clear results.

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