000009794 001__ 9794
000009794 005__ 20141205153154.0
000009794 04107 $$aeng
000009794 046__ $$k2008-10-12
000009794 100__ $$aCundumi, Orlando
000009794 24500 $$aAnalysis of Structures Controlled with a New Variable Damping Semi-Active (VDSA) Device

000009794 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009794 260__ $$b
000009794 506__ $$arestricted
000009794 520__ $$2eng$$aA new semiactive device is proposed in this paper. It is composed of two fixed-orifice viscous fluid dampers installed in the form of V whose top ends are attached to the upper floor and their lower ends to a point that can move along a vertical rod. The mechanism is termed the Variable Damping Semi-Active (VDSA) device. By varying its position, an optimal instantaneous damping added to the structure to minimize the response is obtained. The position of the moving end of the device, an algorithm based on a variation of the Instantaneous Optimal control Theory and which includes a generalized LQR scheme. This modified algorithm, referred to as Qv, is based on the minimization of the performance index J quadratic in the state vector, the control force vector, and a vector of absolute velocity measured at selected points. Two variants of the algorithm are used to compute the seismic response of a single and a multi degree of freedom structure.

000009794 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009794 653__ $$aStructural Control, Earthquake, Semiactive Control, Control Algorithm, Damping.

000009794 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009794 720__ $$aCundumi, Orlando$$iSuárez, Luis E.
000009794 8560_ $$ffischerc@itam.cas.cz
000009794 8564_ $$s149648$$uhttps://invenio.itam.cas.cz/record/9794/files/S25-020.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S25-020.
000009794 962__ $$r9324
000009794 980__ $$aPAPER