Fluid-structure-material coupling analysis for a floating laminated structure consisting of high-stiffness panels and a soft core |
| |
| Institution: | 1. Shandong Province Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao, 266100, China;2. Henan Key Laboratory of Underwater Intelligent Equipment, CSIC, 713, Zhengzhou, 450015, China;1. Key Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan, 430063, PR China;2. Departments of Naval Architecture, Ocean and Structural Engineering, School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, 430063, PR China;3. Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572025, PR China;1. School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China;2. Shanghai Engineering Research Center of Marine Renewable Energy, College of Engineering Science and Technology, Shanghai Ocean University, Shanghai, 201306, China;1. Applied Mechanics Group (GMAP), Federal University of Rio Grande do Sul (UFRGS), Sarmento Leite 425, Porto Alegre, Brazil;2. Physical Metallurgy Laboratory (LAMEF), Federal University of Rio Grande do Sul (UFRGS), Av. Bento Goncalves, 9500, prédio 43820, Porto Alegre, Brazil;3. Equinor ASA, Equinor. Arkitekt Ebbells veg 10, Trondheim, 7053 Ranheim, Norway |
| |
| Abstract: | This paper presents a fluid-structure-material coupling analysis for the interaction between water waves and a very large floating laminated structure (VLFLS), which is consisted of two enhanced ultrahigh-performance concrete (UHPC) panels and a middle lightweight foamed rubber core. The representative volume element (RVE) method is used to design the mechanical properties of enhanced UHPC and foamed rubber, and the parameterized formulas are presented to reveal the dependency between macroscale mechanical properties and mesoscale hierarchical characteristics. By idealizing the rubber core as a uniformly distributed spring layer, an eighth-order differential equation of motion of the laminated structure is derived. In the context of linear potential flow theory, a hydroelastic analytical model is developed for the floating laminated structure with finite length under wave action. In the process of solving velocity potentials, a complicated dispersion equation for the wave motion below the laminated structure is derived, and this equation contains two pairs of conjugate complex roots with positive real parts. The various hydrodynamic quantities, including reflection coefficient, transmission coefficient, deflection, shear force, and bending moment, are calculated. The hydroelastic model is confirmed by considering the convergence of calculation results and the energy conservation of wave propagation. The coupled effects of wave action, material characteristics, structural parameters, and edge conditions on the hydroelastic and mechanical response of the floating laminated structure are clarified to provide important information regarding the optimal design of such structures. |
| |
| Keywords: | Floating laminated structure Enhanced UHPC Rubber core Coupled model Hydroelastic response |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
