Accession Number : ADA570205


Title :   Modal Testing of the NPSAT1 Engineering Development Unit


Descriptive Note : Technical rept.


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Rahn, Sajoscha


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a570205.pdf


Report Date : Jul 2012


Pagination or Media Count : 58


Abstract : The purpose of this thesis is to validate a finite element model of the small satellite NPSAT1. A modal test of this satellite will be conducted and the results will be correlated to the FEM simulation results. Furthermore, this thesis provides an overview of modal parameter extraction techniques and the theories behind them. Impact testing is chosen to obtain the data. In the end, the FEM is found to be inaccurate and suggestions are presented for improvements.


Descriptors :   *ARTIFICIAL SATELLITES , *MODAL ANALYSIS , DEGREES OF FREEDOM , EXTRACTION , FINITE ELEMENT ANALYSIS , FREQUENCY RESPONSE , IMPACT TESTS , PARAMETERS , THESES


Subject Categories : Mechanics
      Unmanned Spacecraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE