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https://elib.bsu.by/handle/123456789/223905| Title: | Асимптотическое и численное определение собственных частот локализованных колебаний слоистых композитных оболочек |
| Authors: | Дамирова, Д. В. Корчевская, Е. А. |
| Issue Date: | 2014 |
| Publisher: | Минск : Изд. центр БГУ |
| Citation: | Сборник научных работ студентов Республики Беларусь "НИРС 2013" / редкол. : А. И. Жук (пред.) [и др.]. - Минск : Изд. центр БГУ, 2014. - С. 16 |
| Abstract (in another language): | In the present paper we consider the local vibration modes of layered elastic and viscoelastic shells. Variability of the physical and geometrical characteristics of the material of construction of the shell, the heterogeneity of the stress-strain state of the shell caused by the nature of the static load can cause the appearance on the surface of the shell, "the weakest" areas, which lead to strong localization of the waveforms. In the neighborhood of a "weakest" generatrix maximum amplitude of the waveform, and the distance from it decreases rapidly.We propose a technique that in contrast to the known classical results, allows to obtain an explicit formula for the frequency parameter, taking into account both eccentricity cross-section and the presence of transverse shear.Also created in the software that allows you to design: shell design, implement passive vibration damping, as well as to calculate the natural frequencies and mode shapes |
| URI: | http://elib.bsu.by/handle/123456789/223905 |
| ISBN: | 978-985-553-227-0 |
| Appears in Collections: | Сборник научных работ студентов Республики Беларусь "НИРС 2013" |
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