000015900 001__ 15900
000015900 005__ 20161115135333.0
000015900 04107 $$aeng
000015900 046__ $$k2013-06-12
000015900 100__ $$aKurata, M.
000015900 24500 $$aTheoretical Study on the Reduction and Recovering Method

000015900 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015900 260__ $$bNational Technical University of Athens, 2013
000015900 506__ $$arestricted
000015900 520__ $$2eng$$aA method for reducing Secondary DOF (Degree of Freedom) from a dynamic equilibrium system into was intended to reduce considerably the storage capacity and computation time. The most popular Guyan [1] method which is based on superposition of lower modes from the modal analysis is widely adopted as a basis and for further improvements in dynamic reduction procedures. As a result of neglecting the higher modes, after the dynamic responses of structures evaluated by using only the lower modes frequencies, it is not possible to recover back precisely the responses of the other reduced Secondary DOF which are obviously more dominant in higher modes. In the present works, a new method for reducing and recovering the Secondary DOF in the dynamic equilibrium system which is based on the concept of dynamic sub-structuring method is introduced herein. To improve the computational accuracy after the reduction process, a new so called Differential DOF Replacement method is also introduced.

000015900 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015900 653__ $$aDynamic Analysis, Main DOF, Secondary DOF, Reduction, Recovering

000015900 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015900 720__ $$aKurata, M.$$iGan, B-S.$$iNouchi, E.
000015900 8560_ $$ffischerc@itam.cas.cz
000015900 8564_ $$s227559$$uhttps://invenio.itam.cas.cz/record/15900/files/1661.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 29 ACCURACY AND COMPUTATIONAL EFFICIENCY IN DYNAMIC/SEISMIC STRUCTURAL ANALYSIS
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000015900 962__ $$r15525
000015900 980__ $$aPAPER