Dynamic characteristic analysis and load design of large floating structures based on experimental design
The regularity of the influence of wave parameters on the hydrodynamic response of ocean engineering structures under irregular waves is not easy to obtain. In order to make qualitative and quantitative analysis of the regularity, the hydrodynamic response of large-scale ocean engineering structures...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2025-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0247687 |
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| Summary: | The regularity of the influence of wave parameters on the hydrodynamic response of ocean engineering structures under irregular waves is not easy to obtain. In order to make qualitative and quantitative analysis of the regularity, the hydrodynamic response of large-scale ocean engineering structures under different wave loads is experimentally designed and studied based on the experimental design method and the moving least squares–Kriging hybrid fitting method. The boundary element method based on potential flow theory is applied to calculate the frequency domain response of the structure, and the time domain response of the structure is calculated by the Fourier transform and convolution method. The results show that the mooring safety of structures cannot be evaluated based on the hydrodynamic response of structures under a single irregular wave condition or a response amplitude operator. The experimental design method based on the plane Monte Carlo method and Latin hypercube sampling method and the fitting method based on the moving least squares and Kriging methods can effectively evaluate the influence of wave parameters on the dynamic response of structures. The larger dynamic response amplitudes of the structure appear frequently under the low peak frequency irregular wave condition. Changing the number of sample points will influence the experimental design and fitting results, but when the number of sample points is enough, changing the number of sample points will not have a significant impact on the evaluation of the maximum dynamic response area and maximum response value of the structure (the maximum relative deviation in this paper is less than 5%). |
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| ISSN: | 2158-3226 |