Application of the Semi-Empirical Force-Limiting Approach for the CoNNeCT SCAN Testbed

By: Administration (Nasa), National Aeronaut

The semi-empirical force-limiting vibration method was developed and implemented for payload testing to limit the structural impedance mismatch (high force) that occurs during shaker vibration testing. The method has since been extended for use in analytical models. The Space Communications and Navigation Testbed (SCAN Testbed), known at NASA as, the Communications, Navigation, and Networking re-Configurable Testbed (CoNNeCT), project utilized force-limiting testing and analysis following the semi-empirical approach. This paper presents the steps in performing a force-limiting analysis and then compares the results to test data recovered during the CoNNeCT force-limiting random vibration qualification test that took place at NASA Glenn Research Center (GRC) in the Structural Dynamics Laboratory (SDL) December 19, 2010 to January 7, 2011. A compilation of lessons learned and considerations for future force-limiting tests is also included. Staab, Lucas D. and McNelis, Mark E. and Akers, James C. and Suarez, Vicente J. and Jones, Trevor M. Glenn Research Center NASA/TM-2012-217627, E-18217 WBS 553323.02.01.08 IMPEDANCE; VIBRATION TESTS; DYNAMIC STRUCTURAL ANALYSIS; RANDOM VIBRATION; MATHEMATICAL MODELS; DYNAMIC RESPONSE; LESSONS LEARNED; SPACE COMMUNICATION; PAYLOADS; NAVIGATION

• Format: Paperback
• Language: English
• ISBN: B08F6RC7DP
• ISBN13: 9798672691404
• Release Date: January 1
• Publisher: Independently Published
• Length: 40 Pages
• Weight: 0.26 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"