DYNAMIC MOVEMENT STUDIES 

Here's What We Do Better

THERMAL GROWTH MONITORING

ACQUIP uses the most advanced laser-based alignment systems to configure your machines to reach an optimal coupling alignment target within the thermal range.

Benefits of Measuring and Correcting
  • Avoid future alignment problems
  • Increase Efficiency
  • Increase mean-time between failure
  • This all directly translates into increased profits

ACQUIP dynamic movement studies are critical to determine hot on-line alignment conditions of your rotating equipment. Dynamic movement is also known as thermal growth. Thermal growth is a bit of a misnomer. A significant portion of the cold offline state to the hot online state of a machine is comprised of forces alternate to thermal growth. Forces that act on the relative alignment at the coupling are process geometry, fluid flow, process loading and pipe strain. None of these components are accounted for when only measuring thermal growth. It is possible to individually calculate each of the dynamic forces acting on the machine. A dynamic movement study measures the actual change at the coupling, which is the sum of all individual forces. That is why we call it a dynamic movement study because it can account for all forces. ACQUIP knows the reliability and efficiency improvement  to having critical rotating equipment aligned at hot operating conditions. It is essential that machines be monitored from cold to hot operating conditions in order to properly calculate coupling alignment targets.

…ACQUIP’s thermal growth monitoring services provide maximum running efficiency and productivity, since
It is important to have your machines aligned during running conditions.

Manufacturer specifications, hot alignment checks and theoretical calculations are better that not doing anything but they are not a substitute for a dynamic movement study to fully capture all thermal growth and torsional movements. Dynamic movement is due to a combination of thermal and torsional stresses introduced to the machine after start-up.

The use of proper alignment targets is a major component when it comes to preventive maintenance. The only way to compensate for how much thermal and torsional forces affect your machine is to measure them accordingly.

ACQUIP uses a combination of methods to quickly and accurately monitor the movement of your machine. We use a Permalign laser based real time monitoring system and a proprietary method employing a laser tracker.  These methods ensure that all dynamic movement is recorded. All data is time stamped in order to correlate alignment changes to events that occur in your process. ACQUIP applications consultants are  experts in a wide variety of machines and can accurately measure dynamic movement without damaging your machines. As a result, our condition-monitoring calculations are guaranteed to pinpoint any substantial changes to reduce vibration and  prevent failure.

The most common machine that we perform dynamic movement studies on:

  • Gas Turbine
  • Steam Turbine
  • Compressor
  • Boiler Feed Pump

Through Dynamic movement studies ACQUIP has been able to diagnose root cause of issues that were not based in thermal growth:

  • Foundation void / instability
  • Soft Foot
  • Grouting issues
  • Casing torsional movements
  • Pipe Flange gasket issues
  • Environmental interference
  • OEM Coupling Target Sign errors
  • Bearing installation errors
  • Gib Key locking up
  • Coupling lubrication problem
  • Upstream startup issues
  • Grounding errors
  • Instrumentation failures
  • Syncing Problems
  • Axial movement clearance problem

Dynamic Movement Studies Video

Contact us about ACQUIP Dynamic Movement Studies at +1 305 538-7101  or email us at info@acquip.com.

Jeff Burleson
Siemens
Steel Related Technology

Working with ACQUIP on the job we had in Italy recently was the best experience I have had in this type situation. ACQUIP was very professional and the response time far exceeded my expectations. The rental equipment was in top shape and made it possible for us to take care of our customer in an emergency situation. We will look forward to doing business with you in the future. Thank you for your hard work.

David M. Casto
Siemens
Regional Quality Engineer

ACQUIP’s engineers performed a great job for Siemens Energy . The Fluid Drive and Gearbox and Pump were all included in the task. Each component was aligned to “all” of Siemens procedures and specifications requested. The Siemens customer was very satisfied with the results of the alignment and process.

Owen O’Donnell
Furino and Sons Inc.
Project Manager

First I would like to thank you for your help. We need a piece of alignment equipment on site last minute do to a break down. ACQUIP responded to your request immediately, recommend the right tool for the job, and had the tool on site by 8:30 AM the following morning. Just outstanding customer service and support from the entire ACQUIP team.

Danny Hiner
Tamarack Aerospace Group
Metrology Engineer

ACQUIP was the best choice to rent the Laser Tracker. It speeded up the process! I will definitely come back on our next set of fixtures!

Don Haag
Reliable Turbine Services
Vice President of North Operations

I highly recommend ACQUIP for executing both Tops on/Tops off and Tops off Steam path alignments.