A Time-Domain 3D BEM–MEM Method for Flexural Motion Analyses of Floating Kirchhoff Plates Induced by Moving Vehicles
| العنوان: | A Time-Domain 3D BEM–MEM Method for Flexural Motion Analyses of Floating Kirchhoff Plates Induced by Moving Vehicles |
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| المؤلفون: | Huu Phu Nguyen, Xuan Vu Nguyen, Van Hai Luong, Minh Thi Tran, Tan Ngoc Than Cao |
| المصدر: | International Journal of Structural Stability and Dynamics. 20:2050041 |
| بيانات النشر: | World Scientific Pub Co Pte Lt, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Computer science, Applied Mathematics, Mechanical Engineering, Coordinate system, Mathematical analysis, Aerospace Engineering, Equations of motion, Moving load, 020101 civil engineering, Ocean Engineering, 02 engineering and technology, Building and Construction, Finite element method, 0201 civil engineering, Structural element, 020303 mechanical engineering & transports, 0203 mechanical engineering, Potential flow, Boundary element method, Civil and Structural Engineering, Very large floating structure |
| الوصف: | In this paper, hydroelastic behavior of a pontoon-type very large floating structure (VLFS) subjected to a moving single axle vehicle is computed using a novel numerical approach, in which the boundary element method (BEM) is firstly extended to cooperate with the moving element method (MEM), named the BEM–MEM. By utilizing this paradigm, the plate and fluid are discretized into “moving structural element” and “moving boundary element”, respectively, which are conceptual elements and “travel” with the moving vehicle. Thus, the proposed method can absolutely eliminate the need of keeping track the location of the moving load with respect to the floating structure. Particularly, the surrounding fluid is defined based on the potential flow theory and the motion of a floating plate is governed by the vibration equation of a thin plate. The governing equations of motion, moving element and fluid matrices of boundary element are formulated in a relative coordinate system traveling with the moving vehicle. Several examples are numerically conducted to illustrate the performance and ability of the BEM–MEM. Its obtained results are compared with those of the traditional finite element method for validation. The outcomes reveal that the proposed method is effective for the large-time behavior owing to the fact that it does not require a domain with the length greater than the horizontal displacement of the vehicle. The paper also discusses the effect of the liquid and structural parameters on responses of the vehicle and floating structure. |
| تدمد: | 1793-6764 0219-4554 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::402990afe09bac5a3eee49f6888d7086 https://doi.org/10.1142/s0219455420500418 |
| رقم الأكسشن: | edsair.doi...........402990afe09bac5a3eee49f6888d7086 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17936764 02194554 |
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