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Comparative modal analysis of Sieve hardware designs

Show simple item record Thompson, Nathaniel 2012-11-08T19:02:46Z 2012-11-08T19:02:46Z 2011-08
dc.identifier.citation NASA Undergraduate Student Research Program (USRP), Pasadena, California, August 2011 en_US
dc.identifier.clearanceno 12-2572
dc.description.abstract The CMTB Thwacker hardware operates as a testbed analogue for the Flight Thwacker and Sieve components of CHIMRA, a device on the Curiosity Rover. The sieve separates particles with a diameter smaller than 150 microns for delivery to onboard science instruments. The sieving behavior of the testbed hardware should be similar to the Flight hardware for the results to be meaningful. The elastodynamic behavior of both sieves was studied analytically using the Rayleigh Ritz method in conjunction with classical plate theory. Finite element models were used to determine the mode shapes of both designs, and comparisons between the natural frequencies and mode shapes were made. The analysis predicts that the performance of the CMTB Thwacker will closely resemble the performance of the Flight Thwacker within the expected steady state operating regime. Excitations of the testbed hardware that will mimic the flight hardware were recommended, as were those that will improve the efficiency of the sieving process. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject CMTB Thwacker hardware en_US
dc.subject testbed hardware en_US
dc.subject flight hardware en_US
dc.title Comparative modal analysis of Sieve hardware designs en_US
dc.type Student Report en_US
dc.subject.NASATaxonomy Computer Operations and Hardware en_US
dc.subject.NASATaxonomy Electronics and Electrical Engineering en_US

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