000015718 001__ 15718
000015718 005__ 20161115135327.0
000015718 04107 $$aeng
000015718 046__ $$k2013-06-12
000015718 100__ $$aNali, P.
000015718 24500 $$aAn Easy-To-Implement Computational Method for the Spacecraft Sine Test-Prediction With Particular Emphasis on the Modal Contributions

000015718 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015718 260__ $$bNational Technical University of Athens, 2013
000015718 506__ $$arestricted
000015718 520__ $$2eng$$aA methodology useful for calculating the frequency response functions in terms of interface forces and local accelerations of a hard-mounted structure subjected to base-shake sine tests is described in this work. The structure is specifically a SC and will be called SC01. Reference to basic structural dynamics is done. The proposed easy-to-implement procedure permits to calculate the SC interface forces to the base and the SC local accelerations by post treating the results of the hard-mounted normal mode analysis. As a consequence of that, dedicated frequency response runs are not necessary. In accordance with the mode superposition approach, the normal mode analysis outputs are processed by accounting each modal contribution independently from the others. The relevance of each mode on the SC responses is thus explicitly quantified. This can favour a focused design refinement aiming to produce the main impact on the natural frequencies and mode shapes of interest. The critical responses can thus be modified and this can produce some advantages along the preliminary definition of the sine test notching plan. A complete set of numerical result comparisons is detailed along the paper in order to assess the accuracy of the methodology presented.

000015718 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015718 653__ $$aSine Tests, Structural Dynamics, Base-motion, Interface Forces, FRA.

000015718 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015718 720__ $$aNali, P.$$iMucciante, L.$$iCaccamo, L.
000015718 8560_ $$ffischerc@itam.cas.cz
000015718 8564_ $$s2568694$$uhttps://invenio.itam.cas.cz/record/15718/files/1323.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 03 PROGRESS AND CHALLENGES IN SPACECRAFT STRUCTURAL DYNAMICS
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000015718 962__ $$r15525
000015718 980__ $$aPAPER