... such as radiation, exciting forces are computed using Cummins (1956) formulation, i.e. based on Impulse Response Function (IRF). On the other hand, the force due to slamming is calculated in ANSYS – Fluent TM . Then total force is obtained at each time step as linear sum of these forces. After that, a time marching...

... flow to unidirectional rotary motion (Shehata, et al., 2016). sustainable development configuration boundary sustainability u-owc turbine equation social responsibility radiation interaction amplitude bathymetry u-oscillating water column u-owc configuration frequency energy...

... offshore fpv system extreme sea condition sustainable development radiation floater performance loss pv module photovoltaic panel Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International...

... the comparisons using WAMIT and HAMS for the original TALOS, and it can be seen that these two panel methods give the almost identical results for the added mass, the radiation damping coefficient and the wave excitation force, as well as the response amplitude operator (RAO) for the heave motion. Some...

... ABSTRACT For underwater structures, vibration and sound radiation are closely related to the sound invisibility. In engineering, these can get through arranging some sensors on the surface of structure. Combined with the compressive sensing theory, this paper presents a method for the optimal...

... of radiation of piston mode fluid resonance in a narrow gap Lei TAN, Tomoki IKOMA, Yasuhiro AIDA and Koichi MASUDA Department of Oceanic Architecture and Engineering, College of Science and Technology, Nihon University, Funabashi, Chiba, Japan ABSTRACT theory, semi-analytical and numerical models have been...

... systematically. wave radiation damping and viscous damping. The wave radiation damping mainly affects the first-order motion of the structure, and the KEY WORDS: single degree of freedom cylinder; numerical corresponding damping coefficient can be obtained by solving the wave wave tank; viscous damping...

... are solved, the solid body is considered as the third phase so that wave-body interactions are considered as three-phase problems. Local Mesh Refinement (LMR) grid is adopted to reduce the computational cost. Benchmark cases of water entry and exit of a circular cylinder, as well as the radiation of a box...

.... In the square arrangement of floating bodies, one floating body is analyzed. Wave loads on floating bodies of the structure are supposed to be applied equally with the results of one body, but phases for body position and wave direction are considered. Added mass and radiation damping are also estimated...

... tending to zero are discussed. INTRODUCTION Being important for hydrodynamic analysis of floating bodies in general and some renewable devices installed in shallow water, in particular, the Green function of wave radiation and diffraction in water of finite depth is re-analysed here. Lots of studies...

... diameter heave motion coefficient radiation subsea system university main parameter water-plane area hydrodynamic response frequency Study on the Hydrodynamic Responses of Floating Offshore Wind Turbine Foundations with Different Shapes Chaohe Chen, Yuefu Yang, Yijun Shen School of Civil...

... by the software WAMIT, which include geometry information, resonance period, added mass coefficient, radiation damping coefficient and relative excitation force. Float shapes include flat bottom circular cylinder with slender and dumpy shape, round bottom circular cylinder with slender and dumpy shapes...

..., the relationship between shell vibration and sound radiation and the sound and vibration performance of cylindrical shell structure are compared and analyzed. The result shows that when the cylindrical shell is excited by sound or force, the vibration characteristics of the structure in the air and in water...

... from the point of view of the hydrodynamic force equation. Also further discussed are: the drag term empirically added to the hydrodynamic force equation, similar to the term in the Morison equation; the use of the frequency-dependent, added mass and radiation (or wave) damping accounting for free...

... strong emission from its ionized gas. To properly detect the Planck radiation from melted steel, two optical paths, infrared region for monitoring weld conditions and blue-light region for measuring the plasma position, were developed. INTRODUCTION In recent years, the use of HF−ERW pipes as line...

... wave frequency coefficient buoy swivel calm buoy submarine hose dimension subsea system skirt plate single point mooring system buoy body radiation tanker frequency hose configuration Calm Buoy and Fluid Transfer System Study Xiaoliang Qi*1,2 Yongjun Chen*1 Quan Yuan*1 Gang Xu*1...

... radiation wave excitation force social responsibility proceedings Wave Energy Conversion by Cylinder Array with a Bottom Slack-Moored Submerged Plate Wanchao Zhang, Hengxu Liu*, Liang Zhang, Hailong Chen College of Shipbuilding Engineering, Harbin Engineering University Harbin, Heilongjiang, China...

... identification technique coherence function transfer function single degree stiffness roll motion somayajula coefficient roll equation equation falzarano radiation application Estimation of Roll Motion Parameters using R-MISO System Identification Technique Abhilash Somayajula and Jeffrey...

... coefficient renewable energy social responsibility resonant frequency outer buoy mavrako heave rao sustainability radiation analytic solution experimental result buoy inner buoy exciting force dual-buoy wec motion response ocean energy wave energy converter frequency natural frequency...

... then compared with the case of the platform without any coupling effects from the WECs. The hydrodynamic coefficients and wave exciting forces were obtained from WAMIT, the 3D diffraction/radiation pre-processor code based on the boundary element method. The analysis of the dynamic responses of the floating...