JPS61129698U

JPS61129698U -

Info

Publication number: JPS61129698U
Application number: JP1985013317U
Authority: JP
Priority date: 1985-02-01
Filing date: 1985-02-01
Publication date: 1986-08-14
Anticipated expiration: 2000-02-01
Also published as: JPH0521517Y2

Description

[Brief explanation of the drawing]

第１〜７図は本考案の第１実施例としての船尾
流場整流装置付き船舶を示すもので、第１図はそ
の水面下船尾部を模式的に示す斜視図、第２図は
第１図の―矢視断面図、第３図はその動作説
明図、第４図はその制御系を説明するためのブロ
ツク図、第５図はその船尾部の側面図、第６図は
第５図の―矢視断面図、第７図ａ，ｂはそれ
ぞれその外水加速器の非作動時および作動時にお
けるスクリユープロペラへの流入状態を説明する
ための流速分布図であり、第８〜１０図は本考案
の第２実施例としての船尾流場整流装置付き船舶
を示すもので、第８図はその船舶の水面下船尾部
を模式的に示す斜視図、第９図はその船尾部の側
面図、第１０図はその外水加速器の作動時におけ
るスクリユープロペラへの流れの流入状態を説明
するための流速分布図であり、第１１図は従来の
船舶の水面下船尾部を模式的に示す斜視図である
。１……船尾部、２……船底、３……船側、４…
…流れ、５……ビルジ部、８ａ，８ｂ，８ｃ，８
ｄ，８ａ′，８ｂ′，８ｃ′，８ｄ′……電極、
９……船体外板、１０……船体内部、１１……超
電導磁石、１６……吃水線、２０……プロペラ軸
、２１……スクリユープロペラ、２１ｎ……スク
リユープロペラの回転方向、２２……舵、２３…
…スクリユープロペラの回転面、２４，２４′，
２４ａ，２４ｂ，２４ａ′，２４ｂ′……流れ、
２５……スクリユープロペラ先端の回転軌跡、２
７……船体中心線、３０，３０′，３１，３１′
，３２，３２′……外水加速器、３５……設定器
、３６……センサ、３７……演算器、３８……制
御器、４０……制御系。 Figures 1 to 7 show a ship equipped with a stern flow field rectifying device as a first embodiment of the present invention. Figure 1 is a perspective view schematically showing the stern section under water, and Figure 2 is the same as Figure 1. Fig. 3 is a diagram for explaining its operation, Fig. 4 is a block diagram for explaining its control system, Fig. 5 is a side view of its stern, and Fig. 6 is a diagram of Fig. 5. -A sectional view taken in the direction of arrows, and Figures 7a and 7b are flow velocity distribution diagrams for explaining the inflow state to the screw propeller when the open water accelerator is not operating and when it is operating, respectively, and Figures 8 to 10 are flow velocity distribution diagrams. 8 is a perspective view schematically showing the stern section of the vessel under water, and FIG. 9 is a side view of the stern section, which is a second embodiment of the present invention. Fig. 10 is a flow velocity distribution diagram for explaining the inflow state of the flow into the screw propeller when the open water accelerator is in operation, and Fig. 11 is a perspective view schematically showing the stern section of a conventional ship under water. It is. 1...Stern, 2...Bottom, 3...Ship side, 4...
...flow, 5... bilge section, 8a, 8b, 8c, 8
d, 8a', 8b', 8c', 8d'...electrode,
9... Hull outer plate, 10... Inside the hull, 11... Superconducting magnet, 16... Water line, 20... Propeller shaft, 21... Screw propeller, 21n... Rotation direction of screw propeller, 22... ...Rudder, 23...
...Rotation surface of screw propeller, 24, 24',
24a, 24b, 24a', 24b'...flow,
25...Rotation trajectory of screw propeller tip, 2
7...Hull center line, 30, 30', 31, 31'
, 32, 32'...Outer water accelerator, 35...Setting device, 36...Sensor, 37...Arithmetic unit, 38...Controller, 40...Control system.

Claims

[Scope of utility model registration request]

In the bilges on the port and starboard sides of the ship, electricity is applied between a pair of electrodes exposed to the outside water and between these electrodes, in order to prevent the generation of bilge vortices due to separation of the water flow along the outer skin of the ship. An open water accelerator consisting of a superconducting magnet is provided to drive open water, and the flow flowing into the screw propeller at the stern through the electrodes rotates in the opposite direction to the rotation direction of the screw propeller. 1. A ship equipped with a stern flow field rectifying device, characterized in that a control system is provided for operating the outside water accelerator asymmetrically on the port and starboard sides so as to generate components.