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vibration analysis

Mobius Institute Extends its Mobius iVibe Application to Machine Vibration Analysis Professionals

“Vibration Analysts and Maintenance Managers Benefit from the Mobius iVibe™ Application with its Comprehensive Database of Machine Fault Profiles and Intuitive User Interface Allowing Impending Machine Problems to be Easily Identified”

Book Review: Case Histories in Vibration Analysis and Metal Fatigue For the Practicing Engineer

Of course, we could have made good use of such a book decades ago. Granted, we have since had access to several good vibration texts by authors with notable academic credentials. Some of these books were based on good course notes and then neatly expounded theories of obvious importance. However, while some of these texts moved on to combine theory and practice, they often fell short of satisfying the true needs of industrial audiences. In clear contrast, Case Histories in Vibration Analysis and Metal Fatigue For the Practicing Engineer by Dr. Anthony Sofronas easily manages to meet these important needs and criteria.

Asset Condition Management

Understanding Why Structural Parts Crack

by Ralph Buscarello

In the April/May 2012 issue of Uptime^® magazine, an excellent article showed the different types of cracks that form in places due to what most engineering articles refer to as metal fatigue. The following article is written by a vibration specialist who claims there is no such thing as metal fatigue, but instead cracks form due to reversible stresses, reversing from tension to compression and back again, at the node of a resonant part.

Asset Condition Management

Proximity Probes: Orbits & Shaft Centerlines

An hour long presentation by Chuck Jenkins PE, Field Applications Engineer, North Region, Commtest

Join us for this refresher of proximity probe vibration analysis. We'll review how they work and delve briefly into two of the more powerful tools they put at our disposal: orbit-timebase plots and shaft centerline plots.

Asset Condition Management

Where Does Twice-Line-Frequency Vibration Come From?

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

Have you ever wondered where the twice-line-frequency peak (typically 120 Hz or 100 Hz) comes from in the spectrum? It can indicate a fault condition, and it can be confused with other fault conditions - and it can mean absolutely nothing! In this presentation we hope to clarify two issues; why does the peak appear at twice the line frequency, and which faults are indicated by the appearance (or growth) in the peak at that frequency. In addition to understanding the origin of the twice-line-frequency peak, you will learn a little about magnetic fields and how three-phase induction motors work. As always we will use 3D animations and simulations to make the topic easy to understand (and interesting to view).

Silicon Designs Introduces MEMS Variable Capacitive Accelerometers with Eight-Pin Connector

November 25, 2012 - Kirkland, Washington, USA - Silicon Designs, Inc. (www.silicondesigns.com), a global industry leader in the design and manufacture of highly rugged industrial-grade MEMS variable capacitive accelerometer chips and modules, has announced the global market launch of the model 2466 series. The 2466 series is a family of low-cost industrial grade triaxial universal MEMS capacitive accelerometer modules with eight-pin connector, designed to provide high-precision shock, vibration and acceleration measurements in three orthogonal directions across a broad range of applications. Units are available for pre-order now, with product shipments beginning in January 2013.

Meggitt Sensing Systems Introduces Miniature Triaxial Accelerometers for Electronics Testing

San Juan Capistrano, California, USA – Meggitt Sensing Systems, a Meggitt group division, has announced that the Endevco® 35A miniature triaxial ISOTRON® piezoelectric accelerometer is supporting the high-precision shock and vibration testing of hard drives, electronic peripherals, engine rotor and stator blades, as well as their associated components.

EDAS, Inc Works With National Instruments to Provide World-Class Vibration Test and Analysis System

EDAS, Inc announced that it had been awarded a major contract from the United States Air Force for a comprehensive vibration data acquisition, real time monitoring and analysis system for use at the Compressor Research Facility at Wright Patterson Air Force Base in Ohio. The new system replaces obsolete equipment and greatly enhances performance and functionality for testing the Air Forces’ next generation propulsion technology.

Meggitt Sensing Systems hires Senior Electrical Engineer

Germantown, MD—Meggitt Sensing Systems, the manufacturer of industry-leading accelerometers and vibration sensing products, announced today that it has hired Chris Kramm as Senior Electrical Engineer and Project Manager for Wilcoxon Research products. Mr. Kramm will work in the Research and Product Development group to design sensors and accessories for vibration monitoring systems.

Asset Condition Management

Vibration Monitoring of Wind Turbines

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

Given their remote location and the extreme operating conditions, the successful monitoring of wind turbines is a critical pursuit. However, they do present a number of challenges, including: they vary in speed and load, they have high speed and low speed components, they include a complicated planetary gearbox, they resonate, an on-line monitoring system is required, and costs must be minimized due to the number of turbines being operated.

Mobius Institute Introduces Analyst Flight School

Seattle, WA (PRWEB) - Mobius Institute, the premier provider of vibration analysis and machine reliability training courses and products, today announced the launch of its new Analyst Flight School in North America to provide valuable experience-building opportunities for ISO Category I, II and III vibration analysts. The inaugural Analyst Flight School will be offered in Annapolis, Maryland on October 30, 2012.

Asset Condition Management