Vibration Research- Speaking Events

Upcoming Speaking Event Schedule



Andy Cogbill

Fatigue Damage: Combine, Compare and Quantify

May 10, 2017 - 10:15 – 11:45

Hyatt Regency, Louisville, Kentucky

Andy Cogbill will be presenting at the ESTECH 2017.

Abstract: Fatigue damage is a common and predictable cause of damage in the supply chain. The Fatigue Damage Spectrum (FDS) is an abstraction that helps engineers make decisions in several different ways. First, the FDS can be used to design and shorten a random vibration test based on combined time domain data. Second, the FDS can be used to compare time-domain waveforms in terms of fatigue. Third, being able to quantify the end-use environment to the vibration profiles running on the shaker gives confidence when going from field to lab. The ability to combine, compare and quantify environments and testing makes the FDS a powerful tool for test design and product analysis.


Aaron Offringa

Using Fatigue Damage Spectrum to Correlate Validation Tests to End-Use Environment

Date: May 16, 2017 - 11:00 - 11:30

Wyndham Virginia Beach Oceanfront, Virginia Beach, VA

Aaron Offringa will be presenting at the MFPT (Machine Failure Prevention Technology) 2017.

Abstract: The accumulated damage that a product experiences in the field due to the variety of vibration stresses placed upon it will eventually cause failures in the product. The failure modes resulting from these dynamic stresses can be replicated in the laboratory and correlated to end use environment to validate target reliability requirements. This presentation addresses three fundamental questions about developing accelerated random vibration stress tests. Question #1: What random profile is needed (and for how much time) to accurately simulate the end use environment over the life-cycle of my product? Question #2: My product operates in many different vibration environments, how can I confidently combine them into one accelerated test? Question #3: How can I use the FDS to accelerate my test?


Andy Cogbill

Using Fatigue Damage Spectrum to Correlate Validation Tests to End-Use Environment

Date: TBD

Pasadena Convention Center, Pasadena, CA

Andy Cogbill will be presenting at the Space Tech Expo 2017.

Abstract: The damage that a product experiences due to the vibration stresses placed upon it causes failures. The failure modes resulting from these dynamic stresses can be replicated in qualification testing in the laboratory. As data is collected from multiple launches testing can be improved to incorporate the additional data. Fatigue Damage Spectrum provides the tool to improve qualification tests as more launch data becomes available.


Andy Cogbill

Using Fatigue Damage Spectrum to Correlate Validation Tests to End-Use Environment

Date: June 29, 2017 - 5:00-5:30

Renaissance Indian Wells Resort & Spa, Indian Wells, CA

Andy Cogbill will be presenting at the NSMMS\CRASTE 2017..

Abstract: The damage that a product experiences due to the vibration stresses placed upon it causes failures. The failure modes resulting from these dynamic stresses can be replicated in qualification testing in the laboratory. As data is collected from multiple launches testing can be improved to incorporate the additional data. Fatigue Damage Spectrum provides the tool to improve qualification tests as more launch data becomes available.


Kevin VP

Understanding Transducer Calibration and Recent Technological Improvements

Date: August 17, 2017 - 1:00-2:00 pm

Gaylord National Convention Center in National Harbor, Maryland

Kevin Van Popering will be presenting at the NCSLI Workshop and Symposium 2017..

Abstract: Transducer calibration is of upmost importance in any laboratory environment to ensure the accuracy of data. Significant advancements have been made with accelerometer calibration systems and now companies can perform highly accurate calibrations in-house with uncertainties equal to or exceeding those provided by an outside source. These advancements include the potential for test automation, superior reporting capability, tighter tolerances, the ability to read/re-write TEDS information, and faster turn-around times. Performing transducer calibrations in-house eliminates the need to send units outside of the organization, reduces downtime, and saves money. The most common method of calibration is the NIST approved back-to-back calibration method. The three primary components are: a controller, a back-to-back accelerometer, and a calibration shaker. The sensor under test is properly torqued to the reference standard and vibrated at multiple discrete frequencies across a specified frequency range. The responses from the transducer under test are compared to the responses of the known standard and a new sensitivity is calculated from this data. The opportunity for error exists from many sources, many of which can be controlled by following industry standards and processes. The potential for mistakes can be minimized with a well-designed system and an understanding of the calibration process.

**More speaking events, tbd

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