In studies evaluating ship performances running in actual seas, shaft powers, ship motions, strains, and the like are usually used. In addition to obtaining these physical quantities, determining the pressure distribution on hulls would be useful for rational ship design. However, the technique for measuring pressure distribution on a ship’s hull in the actual sea has not been established. Therefore, we propose a method to obtain pressure distribution through the convolution integral by using the pressure measured at only one point. The estimated pressure distribution is validated in comparison with measured experimental values. The estimated pressure is discussed in diffraction and free-motion tests. The effectiveness of the proposed method is further validated by integrating the estimated pressures on the hull surface. Then, the obtained forces or motions estimated from the forces are compared with directly measured values.
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March 2024
Journal Paper|
March 06 2024
Prediction of Unsteady Pressure Distribution in Irregular Waves Using Locally Measured Pressure Data and Convolution Integral
Kantaro Suzuki;
Kantaro Suzuki
Department of Naval Architecture and Ocean Engineering, Osaka University, Osaka, Japan
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Takahito Iida;
Takahito Iida
Department of Naval Architecture and Ocean Engineering, Osaka University, Osaka, Japan
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Hidetsugu Iwashita;
Hidetsugu Iwashita
Department of Transportation and Environmental Systems, Hiroshima University Hiroshima, Japan
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Munehiko Minoura
Munehiko Minoura
Department of Naval Architecture and Ocean Engineering, Osaka University, Osaka, Japan
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Int. J. Offshore Polar Eng. 34 (01): 37–46.
Paper Number:
ISOPE-24-34-1-037
Article history
Received:
September 24 2023
Accepted:
December 01 2023
Published Online:
March 06 2024
Citation
Suzuki, Kantaro, Iida, Takahito, Iwashita, Hidetsugu, and Munehiko Minoura. "Prediction of Unsteady Pressure Distribution in Irregular Waves Using Locally Measured Pressure Data and Convolution Integral." Int. J. Offshore Polar Eng. 34 (2024): 37–46. doi: https://doi.org/10.17736/ijope.2024.su02
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