7. Fundamental Research on Absorbing Energy from Ocean Waves
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概要
- 論文の詳細を見る
It is shown that linear theory of water waves and floating body is applicable to prediction of performance of Salters Duck by way of example of floating body type wave power absorbers. And it is presented how to analyze the power absorbed in irregular waves by the use of both its spectrum and its probability. The power consists of steady component and fluctuations. Both components and its probability density function are derived from a wave spectrum, a transfer function of the motion and characteristics of a load system for general cases in which the load system includes not only damping component ("resistance") but also spring component ("reactance") in reaction torque. Comparisons of experiments with the theories confirm the utility of this analysis. This analysis can be applied to other floating type wave power absorbers besides Salters Duck. It is also presented that an accumulator of a hydraulic device of a load system works very effectively for smoothing the fluctuations of the absorved power in irregular waves, and the expected value of absorbed wave power around Japan is calculated by making use of the data of long term wave frequency.
- 社団法人日本船舶海洋工学会の論文
著者
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Maeda Hisaaki
Institute Of Industrial Science University Of Tokyo
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Kinoshita Takeshi
Institute Of Industrial Science University Of Tokyo
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Kinoshita Takeshi
Institete Of Industrial Science The University Of Tokyo
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