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The New Generation of Online Vibration Analysis

The New Generation of Online Vibration Analysis

The New Generation of Online Vibration Analysis

by Dan Ambre

The Vibration Fault Periodic Table concept was created and introduced to the public in an article published in the June/July 2012 Uptime® magazine. The original concept was designed to classify vibration faults in the form of a periodic table of the elements. That is to say, the faults were grouped according to frequency content and dominant direction or response. This format was found to be very useful in gaining a better understanding of the nature of each individual vibration fault, as well as providing the analyst with a quick assessment tool for determining the likely root cause for a particular problem in the field.

The original Full Spectrum Diagnostics home page was designed to feature the Interactive Online Training & Perpetual Guide via the Vibration Fault Periodic Table concept. This training concept is a completely online, interactive HTML format presentation designed for the individual student. The training format is a self-guided tour of 35+ machinery vibration problems. The user can move back and forth through the hyperlink icon platform and drill down to 13 submenus embedded in each fault topic. The 900+ pages of web content includes hundreds of real-life spectrum, time history and animation examples. The content can be used as a refresher of concepts or a diagnostic aid while analyzing data.

The VIBRATION FAULT PERIODIC TABLE

vibration fault periodic table ELEMENTS INTERACTIVE TRAINING

The next generation of the Vibration Fault Periodic Table was reconceived with the help of Reliabilityweb.com to focus on the needs of the emerging vibration analyst with little experience in this field. It was felt that this was the next logical step for the reliability leader. The new focus takes a smaller bite out of the vibration world and provides reliability leaders with enough information to better utilize the implementation of vibration analysis and ultrasound techniques in their organization.

The new focus is defined as:

1

Providing a more elementary look at vibration concepts in line with the needs of the reliability leader, the emerging analyst and the organization;

2

Aligning the vibration content with the existing Uptime® Elements™ written formats, including the passports, and the online learning management system’s (LMS’s) training tools;

3

Creating an interactive, web-based “passport” format for learning through visual and auditory means;

4

Incorporating an interactive, online training format consistent with the American Society for Nondestructive Testing (ASNT) and the International Organization for Standardization (ISO) guidelines for the Introduction to Vibration Analysis (IVA) and ISO Category I training, respectively.

The materials for this new focus on basic concepts in vibration analysis include attributes consistent with requirements for the new analyst.

Each fault is described as a phenomenon in everyday terms.

The individual fault is further described via the internal forces and dominant direction responsible for the anomaly.

The amplitude of the fault is defined in a way to introduce the analyst to amplitude units, as well as commonly used severity guidelines.

The dominant frequency of the fault is determined from the groupings on the Vibration Fault Periodic Table. The frequency groupings (i.e., columns) are defined as Synchronous, Harmonic, Sub-Synchronous, Non-Synchronous and Modulation type faults. These groupings are presented on the table to allow the analyst to quickly eliminate problems not associated with what is shown on the latest vibration survey (i.e., spectrum).

Many common vibration problems are associated with the motion or phase of the rotating machinery. The online Uptime Elements training applies numerous computer animations of machinery faults to integrate the so-called book learning with visual learning. When the fault motion is viewed in an animation, the concepts now start to come alive, even for users with zero experience!

Amplitude and frequency concepts are now grounded when the time waveform is introduced for an individual fault. Normally, the time waveform is a starting point for understanding the amplitude, frequency and phase concepts. Rest assured, when it is introduced in these materials, you already have seen it and have a more comfortable feel for the underlying concepts.

The final concepts are analysis, correction and verification. The most common analysis or diagnostic formats have been described already. Amplitude of the fault, the frequency of the fault and the direction of the fault are the foundations for diagnosing the underlying rotating machinery problem(s). At this point, your toolbox also includes spectrum (i.e., frequency) analysis, phase analysis and time waveform analysis. Some extensions of these tools include ultrasound (i.e., frequency) analysis and orbit analysis from time waveform concepts. The correction and verification processes involve removing the fault and re-baselining the machine to verify your analysis.

The learning process is structured in a way that will set the foundation for what may lie ahead. If your goal is to only be exposed to vibration analysis and better understand the terminology and basic concepts, the Uptime Elements Passports and online materials are definitely for you! If your future path designates you as the “vibration lead” in your organization, the Uptime Elements Passports and online materials will set the foundation for the Introduction to Vibration Analysis online training. This training can be accessed live or online, depending on the user’s preferences. The online materials can be viewed in a linear, start to finish progression or in any way that suits the individual’s learning preferences.

The next generation Reliabilityweb.com training format is a self-guided tour of 35+ machinery vibration problems. The user can move back and forth through the hyperlink icon platform and drill down to nine submenus embedded in each fault topic. The 500+ pages of web content include hundreds of real-life spectrum, time history and animation examples. The content can be used as a refresher of concepts or a diagnostic aid while analyzing machinery measurement data.

Coming soon - summer of 2017!