MATEC Web Conf.
Volume 293, 20192019 7th Asia Conference on Mechanical and Materials Engineering (ACMME 2019)
|Number of page(s)||5|
|Published online||25 September 2019|
Dynamic behaviors of cylindrical shells with geometric imperfection
State Key Laboratory of Structure Analysis for Industrial Equipment, International Research Center for Computational Mechanics, The Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, People’s Republic of China
a Corresponding author: firstname.lastname@example.org
For finding out the relationship between vibrational modes and geometric imperfections, the dynamic behavior of cylindrical shells with a local imperfection is analyzed by using numerical simulation of finite element method in this paper. The results show that there are some differences in vibrational modes between cylindrical shells with and without imperfections. They appear that main corrugation of the mode of the higher orders for the shell with a local imperfection can be fastened on the region of the imperfection but the low order ones. The results also show that the vibrational modes of shells depend upon the size, shape and location of the imperfections. The local vibrational modes are discovered and are more obvious for the imperfection of the larger size. These results are helpful to the design of engineering structures.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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