July Vibration Analysis Training:
Four Case Studies Using ME'scope
ME'scope Online Training in July
ME'scope Vibration Analysis training: "Four Case Studies using ME'scope". Vibration Analyst and ME'scope expert Dan Ambre will conduct four online ME'scope training sessions using four case studies from his 20+ years in advanced Vibration diagnostics. Using real world examples, Dan will teach you how he resolved complex noise and vibration problems utilizing the suite of ME'scope tools. All sessions are recorded and each registrant will receive a link to the recordings following the course.
Seats are limited, sign up today!

Case Study #1: Nuclear Feed Water Pump Resonance
This case was over ten years in the making and features essentially all of capabilities of the ME’scope software. We started in 2005 with an Experimental Modal Analysis. Using the Structural Dynamics Modification (SDM) option, a pump operating speed resonance condition was resolved.  

Case Study #2: Pulp Mill Boiler Recovery Fan Resonance
This case involves a heavily used fan that is only taken out of service every two years. Elevated vibration levels in the turbine drive pointed toward coupling misalignment and resonance amplification. Full Spectrum Diagnostics was requested to perform an Experimental Modal Analysis during the scheduled turbine overhaul. ME’scope EMA analysis was used to define the turbine system natural frequencies, damping and mode shapes to resolve troublesome resonance problems.

Case Study #3: Rocket Engine Nozzle Analysis 
This case was an evaluation of a new “upper stage” rocket engine nozzle design. The analysis was requested to define the natural frequencies in the structure that may be excited during the “boost” phase of flight. The ME’scope Experimental Modal Analysis (EMA) was performed on the shell structure, revealing “Nodal Diameter” type mode shapes unique to “ring” and “shell” structures. Curve-Fitting techniques are used to clean-up noisy test data and enhance the frequency, damping and mode shape characteristics of the structure. The nozzle profile was found to create some interesting mode shapes.

Case Study #4: Belt Driven Fan Resonance
This case involved a new OEM belt driven fan design. The underlying vibration fault was inducing resonance problems in the motor mount design and the fabricated fan base structure. The ME’scope Operating Deflection Shape (ODS) analysis and Experimental Modal Analysis (EMA) options were used to sort out the “Root Cause” and its related “Effects”. The machinery animations were essential in understanding the problem, whereby costly modifications could be avoided.  

Dates: 7/9,7/13,7/16,7/20
Cost: $399
Frequently Asked Questions
Every month we pose a Frequently Asked Question (FAQ) directly from our ME'scope Support Center. This month its all about Impact Testing

There are two ways to perform a modal test on a structure using an impact hammer and a tri-axial accelerometer. One test is called a roving impact test and the other is called a roving accelerometer test. If both of these methods are applied to a structure with nine measurement points of interest, do the two test methods yield the same modal information?
ME'scope on the Road
Join us at the Vibration Institute Conference next month in New Orleans July 16-18th. Visit our booth and see a demonstration of the new machinery video capture functionality in ME'scope.
Software Maintenance and Support
Ever get stuck on an ME'scope project and need a little assistance? If you are current on ME'scope Software Maintenance and Support (SMS) you can pick up the phone or drop us an email and our ME'scope Support Center can get you back on your way. ME'scope support, software enhancements, bug fixes, and documentation are all available, but you have to be current on SMS. Contact  sales@vibetech.com  or your local reseller to get a quote for SMS. Renew today!

Vibrant Technology | (831) 430-9045 | (831) 430-9057 | sales@vibetech.com | www.vibetech.com