000009573 001__ 9573
000009573 005__ 20141205150219.0
000009573 04107 $$aeng
000009573 046__ $$k2008-10-12
000009573 100__ $$aBoroschek, Ruben
000009573 24500 $$aExperimental and Analytical Evaluation of the Modal Parameters Changes of a Large Telescopic Structure

000009573 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009573 260__ $$b
000009573 506__ $$arestricted
000009573 520__ $$2eng$$aExperimental and analytical estimation of changing modals parameters of a 132 meters long telescopic 3D frame ship loading structure is presented. The structure consist of an external 110 meters length 3D steel truss than can move in the horizontal plane and an internal 3D trust that works as extending arm. The amount of arm extension changes continuously according to ship position and loading conditions. Due to the redistribution of mass and rigidity, the modal parameters of the structure changes continuously. To capture the space – frequency characteristic time - frequency system identification techniques were evaluated and presented in this paper: Short Time Frequency Spectrum, the Hilbert-Huang Transform (HHT) and the Wigner-Ville Distribution (WVD). Also an analytical model is used to describe the dynamic behavior of the structure to evaluate the identification methods.

000009573 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009573 653__ $$a

000009573 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009573 720__ $$aBoroschek, Ruben$$iHernandez, Francisco J.
000009573 8560_ $$ffischerc@itam.cas.cz
000009573 8564_ $$s625203$$uhttps://invenio.itam.cas.cz/record/9573/files/12-03-0032.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-03-0032.
000009573 962__ $$r9324
000009573 980__ $$aPAPER