STERN DUCT, DESIGNING METHOD FOR THE STERN DUCT, AND SHIP EQUIPPED WITH THE STERN DUCT

PROBLEM TO BE SOLVED: To provide a stern duct capable of improving a hull efficiency without increasing the resistance to a hull even if a duct body is added to the hull, a method for designing the stern duct, and a ship equipped with the stern duct.SOLUTION: A stern duct is characterized: in that a...

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Bibliographische Detailangaben
Hauptverfasser:	KAWASHIMA HIDEMIKI, ICHINOSE YASUO, KISHIMOTO MASAHIRO, UTO SHOTARO, SAKAMOTO NOBUAKI, HINATSU MUNEHIKO, KANEKO AMI, KUME KENICHI, FUJISAWA JUNICHI, KAWANAMI YASUTAKA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	EQUIPMENT FOR SHIPPING MARINE PROPULSION OR STEERING PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a stern duct capable of improving a hull efficiency without increasing the resistance to a hull even if a duct body is added to the hull, a method for designing the stern duct, and a ship equipped with the stern duct.SOLUTION: A stern duct is characterized: in that a duct body 11 is formed into a generally arcuate shape of an angular range from 90 degrees to 180 degrees in a stern duct 10 to be attached to the front of a propeller 3 attached to the stern 2 of a hull; and in that the duct body 11 is so attached to the stern 2 by support means 12 that the duct body 11 may be asymmetric to the vertical center line Xv of the propeller 3 while the hull is seen in a front view. 【課題】ダクト本体を船体に付加しても船体の抵抗を増加させることなく船殻効率を改善することができる船尾用ダクト、船尾用ダクトの設計方法、及び船尾用ダクトを装備した船舶を提供すること。【解決手段】船尾用ダクトにおいては、船体の船尾２に取り付けたプロペラ３の前方に取り付けられる船尾用ダクト１０において、ダクト本体１１を９０度から１８０度の角度範囲の略円弧状に形成し、船体を後方から前方視した状態でプロペラ３の上下方向の中心線Ｘｖに対してダクト本体１１が非対称を成すように、ダクト本体１１を支持手段１２にて船尾２に取り付けたことを特徴とする。【選択図】図９