000001684 001__ 1684
000001684 005__ 20141118153458.0
000001684 04107 $$acze
000001684 046__ $$k2007-05-14
000001684 100__ $$aNáprstek, J.
000001684 24500 $$aRANDOM RESPONSE OF ONE-DIMENSIONAL STRUCTURE WITH NON-PROPORTIONAL DAMPING DUE TO WIND EXCITATION

000001684 24630 $$n13$$pEngineering Mechanics 2007
000001684 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Prague
000001684 506__ $$arestricted
000001684 520__ $$2eng$$aSlender structures exposed to wind influences are subjected to a random component of the pressure generated by a fluctuation part of the wind velocity. The structure itself is mostly completed by a vibration absorber of various type, which is an origin of a significant non-proportionality of the damping. This factor involves to respect an interaction of eigen-functions (or eigen-forms) on the level of the system itself and moreover on the level of the stochastic interaction of the response with respect to these generalized coordinates. In this study linking with the last year’s paper theoretical results and basic properties of the system is briefly remembered. Then the authors are focussed on an analysis of the particular structure. Factor of various non-proportionality ratio is assessed in a relation with the damping efficiency of individual eigen-forms from the point of view of their interaction and their influence onto final results. It is coming to light that many eigen-forms are able to abandon the subcritical regime and to loss any real influence onto the result. However their hidden influence on other eigen-forms can still remain in force.

000001684 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001684 653__ $$a

000001684 7112_ $$aEngineering Mechanics 2007$$cSvratka (CZ)$$d2007-05-14 / 2007-05-17$$gEM2007
000001684 720__ $$aNáprstek, J.$$iHračov, S.$$iPospíšil, S.
000001684 8560_ $$ffischerc@itam.cas.cz
000001684 8564_ $$s733109$$uhttps://invenio.itam.cas.cz/record/1684/files/099-Naprstek-PT.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000001684 962__ $$r1585
000001684 980__ $$aPAPER