Sloshing in a Horizontal Cylindrical Tank Subjected to Pitching Excitation and Damping Effects by Perforated PlatesSource: Journal of Pressure Vessel Technology:;2017:;volume( 139 ):;issue: 004::page 41302DOI: 10.1115/1.4036429Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Natural gas is relatively clean, and its demand is currently increasing. In most cases, gas fields are located at the bottom of the sea. Therefore, floating production, storage, and offloading (FPSO) systems are now attracting considerable attention. This paper is related to the dynamical design of a FPSO system; in particular, it focuses on the free surface elevation induced by the waves in a horizontal cylindrical and axisymmetric liquid vessel with end caps. In this study, the theory of the wave height and resonant frequency in a horizontal cylinder subjected to pitching via external excitation is developed. Then, a theory taking into account the effect of perforated plates is introduced. A special discussion is made with regard to the number and location of the perforated plates and the effect of a partial opening in a perforated plate on the damping. Finally, the experimental data of resonant wave heights up to the third mode are shown in comparison to the theoretically derived results.
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| contributor author | Sakai, Hidemitsu | |
| contributor author | Uemichi, Akane | |
| contributor author | Takai, Akihiro | |
| contributor author | Yamasaki, Yudai | |
| contributor author | Kaneko, Shigehiko | |
| date accessioned | 2017-11-25T07:19:08Z | |
| date available | 2017-11-25T07:19:08Z | |
| date copyright | 2017/24/4 | |
| date issued | 2017 | |
| identifier issn | 0094-9930 | |
| identifier other | pvt_139_04_041302.pdf | |
| identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4235614 | |
| description abstract | Natural gas is relatively clean, and its demand is currently increasing. In most cases, gas fields are located at the bottom of the sea. Therefore, floating production, storage, and offloading (FPSO) systems are now attracting considerable attention. This paper is related to the dynamical design of a FPSO system; in particular, it focuses on the free surface elevation induced by the waves in a horizontal cylindrical and axisymmetric liquid vessel with end caps. In this study, the theory of the wave height and resonant frequency in a horizontal cylinder subjected to pitching via external excitation is developed. Then, a theory taking into account the effect of perforated plates is introduced. A special discussion is made with regard to the number and location of the perforated plates and the effect of a partial opening in a perforated plate on the damping. Finally, the experimental data of resonant wave heights up to the third mode are shown in comparison to the theoretically derived results. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Sloshing in a Horizontal Cylindrical Tank Subjected to Pitching Excitation and Damping Effects by Perforated Plates | |
| type | Journal Paper | |
| journal volume | 139 | |
| journal issue | 4 | |
| journal title | Journal of Pressure Vessel Technology | |
| identifier doi | 10.1115/1.4036429 | |
| journal fristpage | 41302 | |
| journal lastpage | 041302-9 | |
| tree | Journal of Pressure Vessel Technology:;2017:;volume( 139 ):;issue: 004 | |
| contenttype | Fulltext |