000004643 001__ 4643
000004643 005__ 20141119144541.0
000004643 04107 $$aeng
000004643 046__ $$k2002-06-02
000004643 100__ $$aMazzarella, Luca
000004643 24500 $$aSPECTRAL FINITE ELEMENT MODELING OF WAVE PROPAGATION IN SANDWICH PLATE-ROWS WITH PERIODIC HONEYCOMB CORE

000004643 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004643 260__ $$bColumbia University in the City of New York
000004643 506__ $$arestricted
000004643 520__ $$2eng$$aThe wave propagation in sandwich plates with cellular core is analyzed and controlled. Honeycomb core materials of different geometry placed periodically along the structure introduce the impedance mismatch necessary to obstruct the propagation of waves over specific frequency bands (stop bands). The location and the extension of the stop bands can be optimized by proper selection of the geometrical and mechanical properties of the core. A Spectral-Finite-Element Model (SFEM) has been developed. The model employs dynamic shape functions which allow for accurately predicting the behavior of the structure with a reduced number of elements. The theory for periodic structures and a transfer matrix formulation have been employed to predict the behavior of large plate rows considering the analysis of the single periodic cell. The results demonstrate the simplicity and the effectiveness of the proposed treatment whereby the transmission of waves and the vibration over specified frequency bands can be significantly reduced without additional passive or active control devices and without compromising the size and the weight of the structure.

000004643 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004643 653__ $$aSpectral finite element method, sandwich plate, plate row, wave propagation, periodic structures

000004643 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004643 720__ $$aMazzarella, Luca$$iRuzzene, Massimo$$iTsopelas, Panos
000004643 8560_ $$ffischerc@itam.cas.cz
000004643 8564_ $$s220866$$uhttp://invenio.itam.cas.cz/record/4643/files/103.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004643 962__ $$r4594
000004643 980__ $$aPAPER