| Review of JONSWAP Spectrum Based on Storm 149 from North Alwyn |
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| 引用本文： | 徐继文,赫亮,王言英. Review of JONSWAP Spectrum Based on Storm 149 from North Alwyn[J]. 中国海洋工程, 2003, 17(2) |
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| 作者姓名： | 徐继文 赫亮 王言英 |
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| 作者单位： | Department of Naval Architecture，Dalian University of Technology，Department of Naval Architecture，Dalian University of Technology，Department of Naval Architecture，Dalian University of Technology Dalian 116024，China，Dalian 116024，China，Dalian 116024，China |
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| 摘 要： | 1 .IntroductionItiswellknownthatthewavespectrumisveryusefulforthepredictionofwavecharacteristicsbothinthecomputationofshipmotionandwaveloadonoffshorestructuresandinthesimulationatshipandoceanbasinsformodeltests.InengineeringpracticemanyspectralformulaecanbeselectedforacertainseaareasuchasrecommendedbytheInternationalTowingTankConferenceITTC (TheSpecialistCommitteeofWaves) .TheJONSWAPspectralformulaiswidelyemployedinoceanengi neeringdesignandareviewofitisnecessarybasedonsomemeasureddata…
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Review of JONSWAP Spectrum Based on Storm 149 from North Alwyn |
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| XU Ji-wen,HE Liang and WANG Yan-ying. Review of JONSWAP Spectrum Based on Storm 149 from North Alwyn[J]. China Ocean Engineering, 2003, 17(2) |
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| Authors: | XU Ji-wen HE Liang WANG Yan-ying |
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| Affiliation: | XU Ji-wen,HE Liang and WANG Yan-ying 1 Department of Naval Architecture,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | The measured spectrum for Storm 149 from North Alwyn is calculated by use of FFT (Fast Fourier Transformation) arithmetic and its statistical characteristics are used to determine the predicted spectrum in which the JONSWAP formula is adopted to review comparative object. It is shown that the agreement between measured and predicted spectrum is satisfactory and some corrections to the parameters for the JONSWAP formula are necessary. |
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| Keywords: | wave spectrum FFT arithmetic statistical analysis optimizing approach |
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