International Journal of Engineering، جلد ۳۲، شماره ۱۲، صفحات ۱۷۹۸-۱۸۰۴

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عنوان انگلیسی Dynamic Analysis of Circular Plates in Contact with Fluid and Resting on Two-Parameter Foundations
چکیده انگلیسی مقاله The dynamic behaviour of a circular plate in contact with fluid and resting on two-parameter elastic foundations is of interest in the field of geotechnics, structure, highway, railway, oil and gas and mechanical engineering. In this work, the dynamic behaviour of circular plate in contact with fluid and resting on Winkler and Pasternak foundations is investigated. The coupled differential equation of the system is analysed using differential transformation method. Good agreements are established when the results of the analytical solutions are compared to the results of the experimental investigation as reported in literature. The analytical solutions obtained are used to investigate the effects of elastic foundation parameters on natural frequency, combine foundation parameters on natural frequency, plate in contact with fluid and that of radial and circumferential stress on mode shapes. From the results, it is observed that, increases in elastic foundation parameter increases the natural frequency in all cases. Presence of fluid reduces the natural frequency of the plate. Also, it is established that mode shapes are not altered by the presence of fluid. However, mode shape displacement occurs due to presence of radial and circumferential stresses. Since the study provides a physical insight into the vibration mode of the structure, it is expected that the study will enhance better understanding on the dynamic behaviour of a circular plate in contact with fluid and resting on two-parameters elastic foundation.
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نویسندگان مقاله Gbeminiyi Sobamowo |
Department of Mechanical Engineering, University of Lagos, Akoka, Nigeria

Obanishola Sadiq |
Department of Mechanical Engineering, University of Lagos, Akoka, Nigeria

Saheed Salawu |
Department of Civil and Environmental Engineering, University of Lagos, Akoka, Nigeria


نشانی اینترنتی http://www.ije.ir/article_98876_6c78b47e7604acb0bf5f0ba637be029b.pdf
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