5. Directional Irregular Waves Generated in a Towing Ta

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概要

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• Aiming at the generation of directional short-crested irregular waves, a new snake type wave generator consisting of 16 independent units has been installed at the towing tank of Yokohama National University. This wave maker is based on a new concept to generate specified directional spectrum waves. Reflection of waves on side walls of the tank, which has been always recognized as a disturbance, is utilized positively to obtain directional irregular waves propagating in the towing tank. Generated directional waves were analyzed by MLM using wave height records measured by a wave gauge array at various positions in the towing tank. Successful directional spectra were obtained for arbitrary specified power spectra and directional distribution functions. This paper also presents the results of statistical analyses of measured directional waves and the synthesis methods of wave generating signals.

著者

• Takezawa Seiji

  Yokohama National University

• Kobayashi Kentaro

  Suimitomo Heavy Industries Ltd.

関連論文

• 6. Towed Ship Motion Test in Directional Spectrum Waves in a Long Tank (Part 2)
• 5. Towed Ship Motion Test in Directional Spectrum Waves in a Long Tank (Part 1)
• 5. Directional Irregular Waves Generated in a Towing Ta
• 6. A Practical Calculation Method of a Moored Semi-Submersible Rig Motion in Waves : On the Effects of Moored Water Depth and Mooring Systems
• 5. On the Characteristics of Water Impact Pressures Acting on a Hull Surface Among Waves

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