Hydroelastic impact of a horizontal floating plate with forward speed |
| |
Institution: | 1. University of Duisburg-Essen, Institute of Ship Technology and Ocean Engineering, Duisburg, Germany;2. DNV GL, Hamburg, Germany;1. Department of Enterprise Engineering “Mario Lucertini”, University of Rome “Tor Vergata” - Via del Politecnico 1, 00133 Rome, Italy;2. Department of Mechanical and Aerospace Engineering, New York University - Tandon School of Engineering - 6 MetroTech Center, Brooklyn, NY 11201, United States;3. John A. Paulson School of Engineering and Applied Sciences, Harvard University - 33 Oxford Street, Cambridge, MA 02138, United States;1. Ocean Engineering Division, Technische Universität Berlin, Germany;2. Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Portugal;3. Dipartimento di Fisica, Università di Torino, Italy |
| |
Abstract: | The hydroelastic responses of a horizontal plate impacting with the water at both forward and downward speeds are investigated theoretically. The longitudinal bending behavior of a horizontal elastic plate is approximated by the behavior of longitudinal strips represented as an Euler-beam model. A simplified method of hydroelastic responses of the plate is extended to the cases with forward speed and compressive force, for which the hydrodynamic pressure is found by solving a two-dimensional boundary value problem based on the linearized wave theory. In order to validate the theoretical model, a fully-coupled algorithm in LS-DYNA and the available experimental measurements are used for the predictions of the hydrodynamic pressure and deformations of the horizontal plates impacting with water at vertical velocities. The effects of the forward speed and compressive force which can occur at the bottom of ship ships, are investigated theoretically for the plates with different edge boundary conditions. The critical values of the forward speed and longitudinal compression are discussed regarding the plates with various longitudinal lengths. |
| |
Keywords: | Hydroelastic response Euler-beam model LS-DYNA Forward speed Compressive force |
本文献已被 ScienceDirect 等数据库收录! |
|