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• W47843513 abstract "A thin floating platforms can be used as an alternative of such land-based large facilities as airport or off-shore based storage/production units. Bending rigidity of such a floating platform is small, and wave-induced motion of the plate is significantly affected by its elastic deflection. Analysis of floating plate behaviour in waves is based on hydroelasticity, in which the coupled hydrodynamics and structural dynamics problems are solved simultaneously. In our previous study [1] a goal of the analysis was to predict accurately both the plate deflection and stresses in the plate, as well as to find means of their reduction. The latter is of great importance for safety of the platform and its structure performance. Two approaches for reduction of plate vibrations were suggested. The first approach is based on the concept of vibration absorber wellknown in many engineering applications. In the framework of this approach in order to reduce the floating plate vibrations, a rigid plate of smaller length has to be simply connected to the front of the main structure. Within the second approach the floating beam is connected to the sea bottom with a spring, rigidity of which can be adjusted in such a way that the beam deflection due to incident waves is reduced in the inner part of the plate. A main idea of the present study is to consider a floating elastic plate connected to the sea bottom at its both ends by springs with attached wave energy absorbers, which are modelled as linear dampers. Such connectors are expected to reduce the amplitude of the plate vibrations in wave and, in addition, to generate electric power which may well cover local needs in electric energy. Note that the energy production is not a main function of the connectors. Correspondingly, the wave energy absorbers, which could be installed at the offshore platform, are not necessary the most efficient ones but they must be robust and cheap in terms of their maintenance. In order to estimate the power which could be generated at an offshore platform and optimal reduction of the platform response in waves, we shall perform a parametric analysis with respect to the characteristics of the connectors. The power available from an incident regular wave was estimated by Mei et al [2]. We consider two-dimensional problem of hydroelasticity for homogeneous floating plate in waves. The plate is elastically connected to the sea bottom at its both ends. The scheme of the flow and main notations are shown in Fig. 1." @default.
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• W47843513 date "2010-01-01" @default.
• W47843513 modified "2023-09-24" @default.
• W47843513 title "Wave Power Absorbers at Floating Platform." @default.
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