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Vibration Experts

Vibration monitoring of gearboxes

Vibration analysis in gearboxes can detect common defects such as gear misalignment, broken gear teeth, backlash and wear. Ferrography or wear particle analysis is also especially useful for detecting gearbox…
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Me and my book at IMC 2014

Audit it. Improve it! Getting the most from your vibration monitoring program is now available for sale at MC 2014 in Daytona Beach, Florida. The book is now available online…
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IMC 2014 ReliabilityWEB

IMC 2014 put on by reliabilityWEB.com is coming up next week. Come see Alan Friedman present his workshop at IMC 2014 titled: “10 Reasons why you need to audit your…
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Vibraciones en rodamientos

Tres maneras para detectar fallas en rodamientos incluyendo analisis de la onda de tiempo, de los espectros de vibracion y del espectro desmodulado.

Detecting bearing defects using vibration analysis – video

Detecting bearing defects using vibration analysis Alan Friedman describes the detection of bearing defects using vibration analysis from the time waveform, the vibration spectrum and amplitude demodulation.  This video is…
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Tip: Creating baselines and alarms

Creating baselines and alarms The best alarm limit or baseline is created from data from the machine itself tested under a predetermined set of conditions including a set load, run…
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Tip: Create Case Histories

When using a condition monitoring technology to diagnose faults in machines or other plant assets, it is important to create case histories of each diagnosis, whether it was correct or…
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Tip: Create a program flow chart

There is a difference between using a predictive technology for troubleshooting and using it in the context of a condition based maintenance program. In the latter, it is extremely important…
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Tip: Change test frequency based on condition

Condition monitoring is a process of using a technology to detect changes in machine health over time in order to make a prognosis about when the machine will likely fail…
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Tip: Performing a bump test

A bump test is used as a quick and easy method to look for natural frequencies (related to resonance) in a structure. A bump test is conducted by hitting the…
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Tip: “As-found” condition

In condition monitoring programs, a technology will be employed to detect a problem with a machine or asset and a repair or overhaul may be conducted based on that information.…
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Tips for Running a Successful PdM Program: Understand the Machine

Understand the machine By Alan Friedman When using vibration analysis or other predictive maintenance technologies, it is important to first identify the problem you want to solve and then consider…
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How Vibration Works: The Importnce of Trending

by Alan Friedman Presented October 2009 at CMVA Introduction    Although it has been said many times, it can never be said enough, when it comes to vibration, trend, trend, trend! I cannot…
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Dealing with a reduced maintenance staff

Dealing with a reduced maintenance staff Reliable Plant: Issue: 2/2009 The economic downturn is, or will soon, affect every one of us, which means we, once again, are going to…
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Why PdM Programs Fail: Misuse of Technology

Why PdM Programs Fail:  Misuse of Technology by Alan Friedman Originally published here: http://reliabilityweb.com/index.php/articles/why_pdm_programs_fail_misuse_of_technology/ A very good mechanic knows that you need the right tool for the job, but a…
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Why PdM Programs Fail: Lack of Good Partnering

Why PdM Programs Fail: Lack of Good Partnering -Alan Friedman Many companies have failed to experience the 10:1, 20:1 or even 30:1 ROI promised with the adoption of a Predictive…
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Why PdM Programs Fail: Personnel Issues

Why PdM Programs Fail:  Personnel Issues By Alan Friedman Many facilities and enterprises have failed to achieve the 10:1, 20:1 or even 30:1 Return on Investment (ROI) often promised with…
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Why do PdM Programs Fail?

Why do PdM Programs fail? Originally published here: http://reliabilityweb.com/index.php/articles/why_do_predictive_maintenance_programs_fail/#! by Alan Friedman In the past few years we have witnessed a marked change in predictive maintenance (PdM) practices whereby more…
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What to Look for in a Vibration Consultant

What to Look for in a Vibration Consultant By Alan Friedman The following provides an introduction to vibration analysis technology and methodology with a focus on what to look for…
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