000004911 001__ 4911
000004911 005__ 20141119144604.0
000004911 04107 $$aeng
000004911 046__ $$k2002-06-02
000004911 100__ $$aChen, Suren
000004911 24500 $$aNEW CONTROL MECHANISM OF TUNED MASS DAMPER FOR STRONG WIND-INDUCED COUPLED VIBRATION OF LONG-SPAN BRIDGES IN HURRICANE PRONE AREA

000004911 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004911 260__ $$bColumbia University in the City of New York
000004911 506__ $$arestricted
000004911 520__ $$2eng$$aTuned Mass Damper (TMD) is a well-known control device often used in dynamic vibration control of mechanical and civil structures. In the past decades, the control mechanism of TMD has been well studied for both Single Degree Of Freedom (SDOF) structures and Multiple Degree Of Freedom (MDOF) structures with weak modal coupling. With the increase of bridge span lengths and the tendency of bridge cross-section being more slender and streamlined, the vibration modes of bridges are more prone to couple together due to the interaction between the bridge and wind. The objective of this study is to develop a control mechanism that will be efficient not only for the control of resonant vibration, but also for controlling the vibration due to modal coupling. For this purpose, a theoretical derivation of coupled buffeting response of a bridge-TMD system is made. With the derived analytical formulation, control theory of TMD on coupled vibration is analytically and numerically investigated. It is found that TMD can suppress the coupled response through reducing the modal coupling effects, in addition to traditionally suppressing the resonant response. Such methodology is demonstrated and confirmed through an example. 

000004911 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004911 653__ $$aTMD Control Mechanism Bridge Wind

000004911 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004911 720__ $$aChen, Suren$$iCai, Chun S.
000004911 8560_ $$ffischerc@itam.cas.cz
000004911 8564_ $$s135928$$uhttp://invenio.itam.cas.cz/record/4911/files/530.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004911 962__ $$r4594
000004911 980__ $$aPAPER