Free and Random Forced Vibration Analysis of Spherical Sandwich Shells
This paper presents a detailed analysis of the free and random vibrations of an all-side-clamped spherical sandwich shell. The sandwich is composed of graphite-epoxy layers, each consisting of four laminas with different fiber orientations and an isotropicKevlar...
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| Format: | Article |
| Language: | English |
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Turkish Air Force Academy
2024-01-01
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| Series: | Havacılık ve Uzay Teknolojileri Dergisi |
| Subjects: | |
| Online Access: | https://jast.hho.msu.edu.tr/index.php/JAST/article/view/578/387 |
| _version_ | 1797321635897802752 |
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| author | Ufuk Kol Vedat Ziya Doğan |
| author_facet | Ufuk Kol Vedat Ziya Doğan |
| author_sort | Ufuk Kol |
| collection | DOAJ |
| description | This paper presents a detailed analysis of the free and random vibrations of an all-side-clamped spherical sandwich shell. The sandwich is composed of graphite-epoxy layers, each consisting of four laminas with different fiber orientations and an isotropicKevlar 29 core layer. The study employs the First-Order Shear Deformation Theory (FSDT) to establish kinematic relations and Hamilton’s principle to derive the equations of motion. The sandwich shell is discretized,and equations of motion are reduced to algebraicequationsusing the Differential Quadrature Method (DQM). Natural frequencies are found and subsequently, the GeneralizedAlpha Method is applied to solve the random forced vibration problem. To validate the accuracy of the results, a comparison is made with solutions obtained using the ABAQUS software. |
| first_indexed | 2024-03-08T05:02:25Z |
| format | Article |
| id | doaj.art-6854161e978d4b96911beab79c5d6fe4 |
| institution | Directory Open Access Journal |
| issn | 1304-0448 2148-1059 |
| language | English |
| last_indexed | 2024-03-08T05:02:25Z |
| publishDate | 2024-01-01 |
| publisher | Turkish Air Force Academy |
| record_format | Article |
| series | Havacılık ve Uzay Teknolojileri Dergisi |
| spelling | doaj.art-6854161e978d4b96911beab79c5d6fe42024-02-07T11:09:43ZengTurkish Air Force AcademyHavacılık ve Uzay Teknolojileri Dergisi1304-04482148-10592024-01-011716988Free and Random Forced Vibration Analysis of Spherical Sandwich ShellsUfuk Kol0https://orcid.org/0009-0007-3791-8017Vedat Ziya Doğan1https://orcid.org/0000-0002-5970-1595Istanbul Technical University, Aeronautics and Astronautics Doctorate Program, ITU AyazağaCampus, 34149 Istanbul, TürkiyeIstanbul Technical University, Faculty of Aeronautics and Astronautics, ITU AyazağaCampus, 34149 Istanbul, TürkiyeThis paper presents a detailed analysis of the free and random vibrations of an all-side-clamped spherical sandwich shell. The sandwich is composed of graphite-epoxy layers, each consisting of four laminas with different fiber orientations and an isotropicKevlar 29 core layer. The study employs the First-Order Shear Deformation Theory (FSDT) to establish kinematic relations and Hamilton’s principle to derive the equations of motion. The sandwich shell is discretized,and equations of motion are reduced to algebraicequationsusing the Differential Quadrature Method (DQM). Natural frequencies are found and subsequently, the GeneralizedAlpha Method is applied to solve the random forced vibration problem. To validate the accuracy of the results, a comparison is made with solutions obtained using the ABAQUS software.https://jast.hho.msu.edu.tr/index.php/JAST/article/view/578/387spherical sandwich shelldifferential quadrature method (dqm)free vibrationrandom vibrationfirst order shear deformation theory (fsdt)generalized alpha method |
| spellingShingle | Ufuk Kol Vedat Ziya Doğan Free and Random Forced Vibration Analysis of Spherical Sandwich Shells Havacılık ve Uzay Teknolojileri Dergisi spherical sandwich shell differential quadrature method (dqm) free vibration random vibration first order shear deformation theory (fsdt) generalized alpha method |
| title | Free and Random Forced Vibration Analysis of Spherical Sandwich Shells |
| title_full | Free and Random Forced Vibration Analysis of Spherical Sandwich Shells |
| title_fullStr | Free and Random Forced Vibration Analysis of Spherical Sandwich Shells |
| title_full_unstemmed | Free and Random Forced Vibration Analysis of Spherical Sandwich Shells |
| title_short | Free and Random Forced Vibration Analysis of Spherical Sandwich Shells |
| title_sort | free and random forced vibration analysis of spherical sandwich shells |
| topic | spherical sandwich shell differential quadrature method (dqm) free vibration random vibration first order shear deformation theory (fsdt) generalized alpha method |
| url | https://jast.hho.msu.edu.tr/index.php/JAST/article/view/578/387 |
| work_keys_str_mv | AT ufukkol freeandrandomforcedvibrationanalysisofsphericalsandwichshells AT vedatziyadogan freeandrandomforcedvibrationanalysisofsphericalsandwichshells |