To provide a vessel attaining both wave resistance reduction and securing of restitution force in a vessel form having a vessel side shape with recesses applied to the vessel side in a high speed vessel with a Froude number of a function expressing vessel speed at 0.32 or more.SOLUTION: A vessel with a Froude number of 0.32 or more is characterized by a vessel form in a vessel side shape having recesses so that no recesses exist in a portion of an arc shape bilge plate by: obtaining propulsion performance improvement by reducing the draining amount to be less than that in a normal vessel form along a length of 1/3 of a between-perpendiculars length Lpp between an SS6 position and an SS3 position from a fore perpendicular; applying the maximum recess amount on a full-load water line LWL at an SS4 position and a 1/2 position in a central range of a hull along a length of 1/3 of the between-perpendiculars length Lpp; forming a recessed shape reducing the recess amount in a curved shape between the SS6 position and the SS3 position from the fore perpendicular; eliminating the recess amount in the SS6 position and the SS3 position; and reducing the recess amount as progressing downward than the recess amount at the full-load water line LWL.SELECTED DRAWING: Figure 10
【課題】船速を表す関数のフルード数が0.32以上の船速を有する高速船において、船側に凹みを施した船側形状を有する船型にて、造波抵抗減少と復元力の確保を両立した船舶を提供する。【解決手段】フルード数が0.32以上の船舶に関し、SS6位置と船首垂線からSS3位置間の垂線間長Lppの3分の1長さに亘って排水量を通常船型より少なめにして推進性能向上を図り、垂線間長Lppの3分の1長さに亘る船体中央域でSS4と1/2位置での満載喫垂線LWL上で最大の凹み量を施し、SS6位置と船首垂線からSS3位置との間では曲線状に凹み量を減らすような凹み形状となし、SS6位置およびSS3位置で凹み量を無くし、且つ満載喫水線LWLでの凹み量より下方につれて凹み量を減らして円弧状のビルジ板の部分で凹みが無くなるような凹みのある船側形状の船型を特徴とする。【選択図】図10
SHAPE OF ENERGY CONSERVATION TYPE HIGH SPEED VESSEL
省エネ型高速船の船型
2020-04-16
Patent
Electronic Resource
Japanese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |