Vibration Analysis

About Vibration Analysis

Vibration analysis helps engineers check the condition of machinery while it runs. Changes in vibration can point to problems such as loose parts, worn bearings, imbalance or parts that are out of alignment.

Regular equipment vibration monitoring helps maintenance teams spot these changes and plan further checks. Explore vibration analysis tools at Acutest Direct for assessing motors, pumps, fans and other rotating machinery.

How Does Vibration Analysis Work?

Sensors measure vibration at selected points on a machine. Engineers study the readings and compare them with earlier results or suitable reference levels. This helps them identify changes that may need attention.

Vibration analysis can look at three main features:

• Frequency: How often the vibration repeats. Different patterns can help identify different faults.
• Amplitude: How strong the vibration is. Changes can show that the machine’s condition or working conditions have changed.
• Phase: How one vibration signal lines up in time with another. This can help with more detailed fault checks.

Benefits of Equipment Vibration Monitoring

• Spot potential faults: Find signs of bearing wear, loose parts, imbalance and alignment problems.
• Plan maintenance: Use changes in readings to decide which machines need closer attention.
• Reduce unplanned downtime: Identifying problems early can help teams arrange repairs before a breakdown.
• Track machine condition: Build a record of readings to see how equipment changes over time.
• Check repairs: Compare readings before and after maintenance to help assess the result.

Setting a Baseline for Vibration Analysis

A baseline is a set of readings taken when a machine is known to be in good working order. It gives you a reference for future equipment vibration monitoring.

• Choose measurement points: Use the same locations, sensor mounting method and measurement directions each time.
• Record normal operation: Take readings when the machine is running correctly under its usual working conditions.
• Note speed and load: Record how fast the machine is running and how much work it is doing. Both can affect vibration levels.
• Compare like-for-like readings: Use similar running conditions when checking for changes. Machines with different operating speeds may need separate baselines.
• Set suitable alert levels: Use the baseline, guidance for the machine and specialist advice to decide when further checks are needed.
• Review after repairs or changes: Check whether the baseline needs updating once good machine condition has been confirmed. Keep earlier results for comparison.

Choosing Vibration Analysis Equipment

Start with the machines you need to check and the detail you need from the results. Consider whether you need a tool for routine spot checks, detailed fault analysis or ongoing monitoring.

Compare measurement ranges, sensor options, ease of use and the ability to store results. For equipment vibration monitoring over time, look for features that make it easy to compare readings and follow trends.

Need Help with Vibration Analysis?

Contact our friendly team for advice on vibration analysis tools. Tell us which machines you work with and what you need to measure, and we can help you choose suitable equipment.