Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull
In this paper, the validation of the hybrid frequency–time domain method for the assessment of hard chine displacement hull from vertical motions is presented. Excitation and hydrodynamic coefficients in regular waves are obtained from the 3D panel method by Hydrostar<sup>®</sup> softwar...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/8/5/337 |
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| author | Ermina Begovic Carlo Bertorello Ferdi Cakici Emre Kahramanoglu Barbara Rinauro |
| author_facet | Ermina Begovic Carlo Bertorello Ferdi Cakici Emre Kahramanoglu Barbara Rinauro |
| author_sort | Ermina Begovic |
| collection | DOAJ |
| description | In this paper, the validation of the hybrid frequency–time domain method for the assessment of hard chine displacement hull from vertical motions is presented. Excitation and hydrodynamic coefficients in regular waves are obtained from the 3D panel method by Hydrostar<sup>®</sup> software, while coupled heave and pitch motions are calculated in the time domain by applying the Cummins equations. Experiments using a 1:15 scale model of a “low-drag” small craft are performed in irregular head and following waves at Froude numbers Fr: 0.2, 0.4, and 0.6 at University of Naples Federico II, Italy. Results obtained by hybrid frequency–time domain simulations for heave, pitch, and vertical accelerations at center of gravity and bow are compared with experimental data and showed high accuracy. |
| first_indexed | 2024-03-10T19:56:16Z |
| format | Article |
| id | doaj.art-41787640b03c4e9181500add2360daf8 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T19:56:16Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-41787640b03c4e9181500add2360daf82023-11-19T23:55:32ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-05-018533710.3390/jmse8050337Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement HullErmina Begovic0Carlo Bertorello1Ferdi Cakici2Emre Kahramanoglu3Barbara Rinauro4Department of Industrial Engineering, University of Naples Federico II, 80125 Napoli, ItalyDepartment of Industrial Engineering, University of Naples Federico II, 80125 Napoli, ItalyDepartment of Naval Architecture and Marine Engineering, Yildiz Technical University, 34349 Istanbul, TurkeyDepartment of Naval Architecture and Marine Engineering, Yildiz Technical University, 34349 Istanbul, TurkeyDepartment of Industrial Engineering, University of Naples Federico II, 80125 Napoli, ItalyIn this paper, the validation of the hybrid frequency–time domain method for the assessment of hard chine displacement hull from vertical motions is presented. Excitation and hydrodynamic coefficients in regular waves are obtained from the 3D panel method by Hydrostar<sup>®</sup> software, while coupled heave and pitch motions are calculated in the time domain by applying the Cummins equations. Experiments using a 1:15 scale model of a “low-drag” small craft are performed in irregular head and following waves at Froude numbers Fr: 0.2, 0.4, and 0.6 at University of Naples Federico II, Italy. Results obtained by hybrid frequency–time domain simulations for heave, pitch, and vertical accelerations at center of gravity and bow are compared with experimental data and showed high accuracy.https://www.mdpi.com/2077-1312/8/5/337Cummins equationsvertical motions assessmenttime domain simulationsexperimental seakeepinghard chine displacement hull form |
| spellingShingle | Ermina Begovic Carlo Bertorello Ferdi Cakici Emre Kahramanoglu Barbara Rinauro Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull Journal of Marine Science and Engineering Cummins equations vertical motions assessment time domain simulations experimental seakeeping hard chine displacement hull form |
| title | Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull |
| title_full | Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull |
| title_fullStr | Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull |
| title_full_unstemmed | Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull |
| title_short | Vertical Motions Prediction in Irregular Waves Using a Time Domain Approach for Hard Chine Displacement Hull |
| title_sort | vertical motions prediction in irregular waves using a time domain approach for hard chine displacement hull |
| topic | Cummins equations vertical motions assessment time domain simulations experimental seakeeping hard chine displacement hull form |
| url | https://www.mdpi.com/2077-1312/8/5/337 |
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