July 2019 Newsletter
MEscope App Note 53
Sinusoidal Response is a Summation of Mode Shapes
This App Note illustrates a universal law of all modal analysis, "all vibration is a summation of mode shapes" . The modal parameters of a structure can be obtained in two ways,
  1. Experimental Modal Analysis (EMA): Extracting EMA mode shapes by curve fitting a set of experimentally derived time waveforms or frequency spectra that characterize the structural dynamics
  2. Finite Element Analysis (FEA): Solving for the FEA mode shapes from a set of differential equations that characterize the structural dynamics
In this App Note, the analytical FEA mode shapes of the Jim Beam structure will be used to “decompose” and then "expand" sinusoidal responses of the Jim Beam to include DOFs that were not part of the original time waveforms. A unique advantage of this approach is that only mode shapes themselves are required. Modal frequency & damping are not required. Another unique advantage is that mode shapes from an FEA model with free-free boundary conditions and no damping can be used to expand experimental data from structures with damping and real-world boundary conditions.
Click Here to access App Note 53.
The new and improved Vibrant website launches July 17th. Easier navigation, faster downloads, quick access to training, downloadable 3D models, and MEscope application notes and tech papers all in one place. This will be the new one stop shop for all things MEscope, ODS and Modal.
Upcoming Partner Training Courses
Practical Aspects of ODS and Modal Testing  
  • Course Date: August 26th - 30th 2019
  • Location: Niagara Falls NY Conference Center
  • Vibrant Partner: 4x Diagnostics
  • Instructor: Tony DeMatteo
  • Registration and Information

Hands-On ODS and Modal Analysis for Vibration Analysts & Engineers
  • Course Date: September 24th - 26th 2019
  • Location: Vibrant Headquarters Centennial CO
  • Vibrant Partner: Full Spectrum Diagnostics
  • Instructor: Dan Ambre
  • Registration and Information

4-day Hands-On Modal Testing & Analysis Training 
  • Course Date: November 19th - 22th 2019
  • Location: Fullerton CA
  • Vibrant Partner: Navconn Engineering Network
  • Instructor: Jim Steedman
  • Registration and Information
Upcoming Conferences
July 23-26th 2019 Lexington, KY
Vibration Institute Annual Training Conference
Join us in Lexington for the VIATC show. Stop by Booth #25 to say Hi and get a look at some of the latest developments with ME'scope.
Vibrant License Server

Searching for a more cost effective and flexible way to deploy MEscope? Do you know about the Vibrant License Server (VLS)? VLS authorizes the use of two (2) seats of MEscope on any computer connected to a local area network (LAN) or a virtual private network (VPN). Use of MEscope is authorized by checking out a license from the VLS. Each license can also be borrowed for a limited time period, which authorizes the use of MEscope without a network connection.
  • 125% of the Package & Options purchase price for a new purchase only (includes two (2) seats)
  • 70% for each additional seat

Choose VLS when ordering or renewing your next MEscope license!!

Free 3D Models in the ME'scope Shared Models Library
The new MEscope Shared Models Library is your first stop for downloading high quality 3D models. If you are current on MEscope SMS, you can now download any model for free. Search for Bearings,Boilers,Compressors,Fans , Blowers,Piping and more. Available on the MEscope Start-up Screen.
Have a cool model you would like to share with other MEscope users? You can now upload and share your own models to the Share Models Library by going to File | Save in Model Library command in a Structure window.

Get your next ODS and Modal project up and running faster with the new MEscope Shared Models Library!
MEscope Visual Rapid Test™
Visual Rapid Test™
Vibrant has introduced a new MEscope package called Visual Rapid Test™. This new method is faster, easier, more flexible, and less costly to implement than conventional ODS or modal testing methods. Since only the structural responses are acquired, it can be used for ODS testing of operating machinery, or for modal testing using an impactor or multiple shakers.
This package employs a new testing method called "TRN Chain testing". TRN Chain testing only requires two vibration response sensors and as little as a 2-channel acquisition hardware system. Either sensor or both sensors can be moved between acquisitions, thus forming a chain of Transmissibility measurements called a TRN chain. The TRN chain preserves the magnitude & phase relationship between pairs of structural responses in the chain.
After a chain has been acquired, it can be seeded with either an Auto spectrum, Cross spectrum, Fourier spectrum, or FRF to yield a single-reference set of measurements. These measurements can then be used to extract ODS’s and mode shapes of the test article.

Pricing is only $5995 for up to 8 channels. Contact sales@vibetech.com or your local reseller for more information.

Check out the App Note 50 for more details on Rapid Test.

MEscope Newsletter Archive

Never miss another MEscope newsletter. Check out a full archive of the previous 12 months of ME'scope newsletters.
Vibrant Technology | (831) 430-9045 | (831) 430-9057 | sales@vibetech.com | www.vibetech.com