000009150 001__ 9150
000009150 005__ 20141204092413.0
000009150 04107 $$aeng
000009150 046__ $$k12/05/2014
000009150 100__ $$aHračov, S.
000009150 24500 $$aApplicability of existing indexes of non-proportionality of damping in case of theoretical model of slender structure with installed TMD

000009150 24630 $$n18.$$pEngineering Mechanics 2012
000009150 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009150 506__ $$arestricted
000009150 520__ $$2eng$$aThe paper analyzes an applicability of to date published indexes of non-proportionality in the case of a linear viscously damped numerical model of slender structure equipped with tuned mass damper (TMD). The installation of TMD into the structure not only reduces the level of undesired vibration, but it can also cause due to damping element of TMD a significant increase of damping nonproportionality. The paper recommends the most suitable indexes for such a type of structure and points out to impropriety of the others. The point of view of is also focus on the validity of the existing criterions for neglecting of non-diagonal terms of a modal damping matrix. Only indexes and criterions based on the properties of the modal damping matrix were taking into account. The verifications of validity and recommendations for usage of particular indexes and criterions were performed using analysis of the dynamic response of an existing structure on harmonic excitation with and without neglecting of nondiagonal terms of modal damping matrix. The applicability was also checked using analysis of particular complex eigen-modes.

000009150 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009150 653__ $$aIndexes of non-proportionality of damping, tuned mass damper, slender structure

000009150 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009150 720__ $$aHračov, S.$$iPospíšil, S.$$iNáprstek, J.
000009150 8560_ $$ffischerc@itam.cas.cz
000009150 8564_ $$s786633$$uhttps://invenio.itam.cas.cz/record/9150/files/041_Hracov_S-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 041).
000009150 962__ $$r8924
000009150 980__ $$aPAPER