Scientific Visualization, 2018, volume 10, number 3, pages 45 - 57, DOI: 10.26583/sv.10.3.03
Determination natuxal freguencies and mode shapes imaging element structures
Authors: E.A. Zheleznyakova1, A.V. Osintsev2
NRNU «MEPhI», Moscow, Russia
1 ORCID: 0000-0002-0471-011X, remi.vivi@gmail.com
2 ORCID: 0000-0001-8077-9082, avosintsev@yandex.ru
Abstract
Currently, the problem of strength and stability of various complex structures is relevant and paramount for manufacturing, industrial, construction and other spheres of material production. This article discusses two methods of determining the eigenfrequencies and visualize the mode shapes, namely: the method of holographic interferometry and finite element method. Knowing the kind of shape oscillations and the corresponding frequency, it is possible to significantly reduce the amplitude of the vibrations change the natural frequencies by introducing additional elements or replacement of the material. This article presents the determination of natural frequencies and visualized mode shapes of structural elements with various configurations are widely used in the industry of high-temperature structural material of duralumin D16T.
Keywords: holographic interferometry, finite element method, natural frequencies, mode shape, visualization.
