000022186 001__ 22186
000022186 005__ 20170622150000.0
000022186 04107 $$aeng
000022186 046__ $$k2015-05-25
000022186 100__ $$aLi, Yuchun
000022186 24500 $$aPARAMETRIC RESONANCES OF FRAMED STRUCTURES INDUCED BY A NORMAL RESONANCE

000022186 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022186 260__ $$bNational Technical University of Athens, 2015
000022186 506__ $$arestricted
000022186 520__ $$2eng$$aConsidering the geometric-stiffness effect of beam-element produced by the internal axial force, the beamelement equation of motion is derived by the extended Hamilton’s principle. The global finite-element equations of the framed structures under the periodic loading are assembled as the non-homogeneous Mathieu-Hill equations. The Newmark’s method is introduced to solve the unstable responses of the nonhomogeneous Mathieu-Hill equations. The parametric resonance problem was investigated for some framed structures. The numerical results have shown that a parametric resonance may be induced by a normal resonance. When the normal resonance occurs, the member internal axial force of the framed structure may be amplified during the process of load transmission, and the effect of the parametric resonance is greatly magnified. The consequence of this parametric resonance will be disastrous.

000022186 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022186 653__ $$aParametric resonance, normal resonance-induced, framed structure.

000022186 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022186 720__ $$aLi, Yuchun$$iYu, Yanqing
000022186 8560_ $$ffischerc@itam.cas.cz
000022186 8564_ $$s8763$$uhttps://invenio.itam.cas.cz/record/22186/files/C1446_abstract.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022186 962__ $$r22030
000022186 980__ $$aPAPER