How Vibration Analysis Works

A worker checking the vibrations of an electric motor

No matter what kind of industrial machines you rely on for your business’ productivity, you’ll often find that “vibration” is a common side effect of high performance devices. Because of the intense workload demanded of electric motors, there is naturally some vibration that occurs throughout the entire system. Unfortunately, when this vibration exceeds the normal levels, it can lead to significant reductions in the overall performance and lifespan of a motor.

Understanding why vibration is happening in your system, (and what it’s doing to your machine) can be crucial to figuring out how you can prevent future damage in your production environment. Unfortunately, it’s very difficult for most professionals to determine the difference between acceptable levels of vibration and the vibration levels that require their immediate attention.

That’s where our team at Sloan Electric comes in with our vibration analysis strategies tailored for today’s professionals.

What is Vibration Analysis?

Simply put, vibration analysis is a mechanical testing strategy designed to prolong the life and performance of an electric motor by pinpointing the causes of excessive vibration. Many regard it as a form of “predictive maintenance“, which is critical when it comes to identifying the source or sources of potentially problematic disruption in an electric motor.

With vibration analysis, technicians and engineers monitor the level and direction of mechanical movement in an electrical motor. By using the measurements taken from vibration analysis, it’s possible to assess whether or not a machine is going to break down soon, and which step or steps you should take to prevent any long-term damage.

Why Vibration Analysis is Crucial for Peak Performance

Vibration analysis is a strategy of measuring the vibration in a motor at various critical points when the motor is in the process of running. Some vibration is normal, but getting to the root cause of any abnormal noise or vibration can help engineers figure out which components need replacing or repairing.

Sometimes, vibration analysis is only done as a one-off strategy to figure out the reason for a malfunction. But in preventative maintenance strategies, you can also take readings every month to help gain insights into performance trends, which can also help forecast against any possible failures.

Using tools like a “vibration transducer” in conjunction with a data collection program can help collect information about vibration levels in various parts throughout the motor. Once an ample amount of statistics have been properly recorded in a report, qualified experts can assess this report in detail to determine what exactly is going on within the equipment. This can assist in offering recommendations for actions that might help prevent future breakdowns or issues.

Why You Should Measure Housing and Shaft Vibration

An important key to effective vibration analysis is measuring the overall performance across different parts of the motor itself. This process helps technicians get a stronger idea of where each issue might be located. For example, if there’s a chance that there could be problems with the housing of the motor, then your electrical motor experts might look at vibration data using an accelerometer mounted onto the frame of the motor.

On the other hand, if there’s a chance that vibration issues could be coming from within the rotor, then vibration data is often gathered by using a proximity probe, which can determine the movement of the rotor outside of the influence of the housing.

We recommend taking vibration analysis measurements from various points within and around the housing of the motor, in addition to around the rotor, too. This method provides a complete overview of what’s happening within the electric motor while it’s in action.

Using Vibration Analysis to Measure Problems

Vibration analysis can be an important and preventative tool when it comes to protecting the performance and the longevity of your motor. If ignored, excessive vibration can cause unwanted damage to vital components in your machine, leading to high repair costs and even damage caused by a halt in production. With vibration analysis, our experts can help discover:

  • Electrical emission issues like flash and arching
  • Gas or fluid leaks
  • Rolling bearing faults
  • Misalignments and imbalanced loads
  • Rotating equipment faults

With vibration analysis, you can monitor the internal performance and condition of crucial equipment, and reduce your risk of long-term damage. Through this form of preventative maintenance, our technicians at Sloan Electric can measure, discover, and quantify issues within a system, and prolong the life of your monitored equipment.

How Vibration Analysis Works was last modified: February 20th, 2018 by admin
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Jerry is the owner of Sloan Electromechanical and is active in all aspects of the company. He is passionate about doing the work RIGHT and proposing the best product solution, hence the Sloan team is focused on aligning company values with client values. Please post your questions or comments and Jerry will respond. For a faster or confidential response, please contact Jerry directly 619-515-9691 or LinkedIn www.linkedin.com/pub/jerry-gray/17/332/5a1
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