000021903 001__ 21903
000021903 005__ 20170622131311.0
000021903 04107 $$aeng
000021903 046__ $$k2017-06-15
000021903 100__ $$aFilippov, Sergei
000021903 24500 $$aLOW-FREQUENCY VIBRATIONS OF THIN CYLINDRICAL SHELL STIFFENED BY RINGS WITH T-SHAPED CROSS-SECTION

000021903 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021903 260__ $$bNational Technical University of Athens, 2017
000021903 506__ $$arestricted
000021903 520__ $$2eng$$aSmall free low-frequency vibrations of a thin elastic cylindrical shell stiffened by the rings with T-shaped cross-section are analyzed. The narrow rings are considered as circular beams. The wide rings are treated as annular plates stiffened at one edge by a circular beam. In the both cases problem is reduced to solution of the eigenvalue problem for systems of linear differential equations containing a small parameter. By means of various asymptotic approaches simple approximate formulas for the low frequencies are obtained. These formulas are used for the evaluation of optimal parameters corresponding to the maximal fundamental frequency of the ring-stiffened shell with a given mass.

000021903 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021903 653__ $$aFree vibrations, Ring-stiffened shell, T-shaped ring cross-section, Eigenvalue problem, Asymptotic methods.

000021903 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021903 720__ $$aFilippov, Sergei
000021903 8560_ $$ffischerc@itam.cas.cz
000021903 8564_ $$s144242$$uhttps://invenio.itam.cas.cz/record/21903/files/18273.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS05] Periodicity-induced effects and methods in structural dynamics
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000021903 962__ $$r21500
000021903 980__ $$aPAPER