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Tutorials: Vibration Analysis

12 things to consider when selecting an industrial accelerometer

12 things to consider when selecting an industrial accelerometer by Renard Klubnik, Applications Engineer, and James Lundy, Wilcoxon Research

Learn the basics of 12 important considerations for selecting the right industrial accelerometer. This presentation will go over sensor characteristics such as acceleration range and sensitivity tolerance, as well as environmental factors like temperature and hazardous area requirements. In just a few minutes, you'll learn how to pick the right vibration sensor for your application.

 

Avoid Asset Failure with Wireless Monitoring

An hour long presentation by James F. Haza, senior sales consultant, Honeywell Process Solutions

Ninety percent of rotating assets in industrial plants are not instrumented due to the high cost of wiring vibration monitoring systems. Today, wireless technology is changing how facilities approach asset management. Plants are now instrumenting their non critical assets with wireless vibration transmitters and self-monitoring intelligent vibration analysis applications.

Back to Basics ... Time Waveform in PdM

An hour long presentation by Dennis H. Shreve, Senior Staff Engineer, GE Bently Commtest

As frequency data are derived from a transducer providing a raw time waveform electrical signal of the vibration measurement, whether it be a displacement probe, velocity pickup, or an accelerometer, it is worth going back to basics for a moment to see how this raw data can be a big help in analyzing and pinpointing some fundamental vibration issues. This presentation is intended to show the value of retaining a sample of the collected time waveform and to describe how the raw data should be properly collected and analyzed. This additional information will help one to arrive at a solid PdM strategy for pinpointing and confirming complex vibration problems with a high degree of confidence.

Bearing Fault Detection - Part 1

A three part presentation by Jason Tranter, Director, Mobius Insitute. Originally filmed at the CBM2011 Condition Based Monitoring Conference at the Reliability Performance Institute in Fort Myers, Florida.

Bearing Fault Detection - Part 2

A three part presentation by Jason Tranter, Director, Mobius Insitute. Originally filmed at the CBM2011 Condition Based Monitoring Conference at the Reliability Performance Institute in Fort Myers, Florida.

Bearing Fault Detection - Part 3

A three part presentation by Jason Tranter, Director, Mobius Insitute. Originally filmed at the CBM2011 Condition Based Monitoring Conference at the Reliability Performance Institute in Fort Myers, Florida.

Bearing frequencies: What you should know and why you should not rely on them

An hour long presentation by Jason Tranter, Managing Director, Mobius Institute

Detecting rolling element bearing faults is key to success in vibration analysis, and most analysts utilize a database of bearings to know where to look in the spectrum. But did you know that those frequencies may be incorrect? The peaks don't always appear where you expect. In this Webinar we will review the four key frequencies, learn why the peaks will not appear at the calculated frequencies, and learn why the information from your database may be incorrect. We will also explain how to detect bearing faults without these bearing frequencies.

Comparing Electrical Signature Analysis (ESA) and Machinery Vibration Analysis (MVA) 004

Rotating machinery exhibit specific characteristics when faults create unwanted mechanical motion. For over 70 years Machinery Vibration Analysis has been the main method used to identify many of these faults. Recent experience and research have proven that many of these same faults can be identified using Electrical Signature Analysis (ESA). ESA also provides very important information regarding the condition of the incoming power to the motor, as well as possible electrical faults in the motor system undetectable using MVA. This presentation discusses the faults that are identified and how they present themselves in both the Vibration spectrum and the Electrical spectrum. ESA is emerging as a very important part of a plant's Electrical predictive maintenance program. In some plants it is being used as the main detection tool used to identify both electrical and mechanical problems on machines which are driven by electric motors.

Confidently Diagnosing Misalignment With Vibration Analysis

Using brand new 3D animations, we will explore the physical motion associated with misalignment and explain why we see the characteristic vibration patterns that are common when machines are misaligned.

We will also discuss why misalignment is so often misdiagnosed. We will introduce phase analysis, and demonstrate how two channel analyzers make phase analysis very easy to perform, and how it helps us to accurately diagnose misalignment.

1) How does the vibration pattern change when machines are misaligned

2) How to accurately diagnose misalignment

3) Why phase analysis is such a useful tool

Detecting Misalignment through Vibration Analysis

An hour long presentation by Mickey Harp, Vibration Application Engineer, LUDECA Inc.

This webinar will explain how vibration analysis can be used to detect misalignment in rotating machinery

Do you do the Verti-Zontal?

 

A half hour long webinar on demand by Patrick Lawrence of VibrAlign

The use of lasers in measuring misalignment has improved the shaft alignment process. Thousands of laser-based measuring tools have been sold over the past 20+ years. No doubt, laser systems have eliminated many errors and simplified the process used to measure misalignment. However, after all these years, we have not dramatically changed or improved the basic process used to correct misalignment. The way we have been correcting misalignment is inefficient, time consuming and frustrating to those who have to move machines to make proper alignments. It's time to learn some new moves.

Dynamic Balancing – “Did you really want to know this much!”

A one hour long Webinar On Demand by Ron Newman, PRUFTECHNIK, Canada

Unbalance has long been recognized as one of the leading causes of vibration in rotating machines. Under ideal conditions, field balancing is a correction method that is well understood and practiced, however under difficult conditions it can quickly become a major headache. Increasing our understanding of dynamic balancing, particularly in the area(s) of quality grades, recognizing the types of rotor unbalance, resonance vs. critical speed, rigid vs. flexible rotors, and the pre-balancing inspection, will go a long way in helping resolve that problem balancing job!

Learning Points:

1) A better comprehension of the ISO Balancing Quality Grades

2) An understanding of the importance of the pre-balancing inspection

3) Calculation(s) for effective Trial Weight selection

Effective Defect Analysis: Maximizing your Vibration Setup

A one hour recorded webinar on demand by Mitch Stansloski, President of PIONEER ENGINEERING - LUDECA Inc Training Partner.

Missed vibration conditioning monitoring data can never be recovered. All too often either insufficient data is collected, or data is collected at an ineffective interval. Then when crucial trend information is needed, accurate analysis is difficult at best.

This presentation will discuss setting highly effective collection specifications, as well as determining the appropriate collection interval for several applications.

Watch this tutorial to learn:

1. How to set appropriate frequency ranges, averages, and resolution in order to avoid misdiagnosing malfunctions that could be very straightforward.

2. How to establish the appropriate collection interval which varies as a function of shaft turning speed, duty cycle, and load.

3. The new VIBXPERT II vibration analyzer and OMNITREND software will be used to present real case studies to demonstrate these concepts.

Fundamental Vibration Analysis

A 60-minute web workshop presented by Christopher R. Keniston, Customer Success Engineer Inc, Commtest

Implementing a Vibration Analysis program can be a considerable investment of time and resources. Realizing a significant Return-on-Investment requires the ability to capture and interpret relevant data, then take appropriate maintenance actions. Therein lies the primary obstacle to success. Regardless of whose products are used, you must understand what the technology is showing you. Our intent is to demonstrate that a fundamental understanding of this technology does not require highly-specialized training or an advanced degree. All one really needs is familiarity with the machine being monitored.

Watch this webinar to learn:

1) Understand fundamental sources of machine vibration.

2) Understand basic terms associated with Vibration Analysis.

3) Recognize several common FFT spectrum vibration signatures.

Fundamentals of Vibration – Back to Basics

A 50-minute web workshop presented by Rod Acklin, General Manager, Commtest, Inc,

Vibration Analysis can seem complicated and many programs can stall or stop completely. Getting the basics right can make a big difference between success and failure. Understanding what the technology can do and cannot do is vital when applying it to solve machinery problems.

Watch this webinar to learn:

1) What is a vibration signature?

2) What is a FFT?

3) What are amplitude units?

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