SU975489A1

SU975489A1 - Shallow-draft river-going vessel

Info

Publication number: SU975489A1
Application number: SU813308773A
Authority: SU
Inventors: Александр Иванович Палатов
Original assignee: Центральное технико-конструкторское бюро Министерства речного флота РСФСР
Priority date: 1981-07-02
Filing date: 1981-07-02
Publication date: 1982-11-23

Description

(54) РЕЧНОЕ МЕЛКОСИДЯЩЕЕ СУДНО(54) RIVER SHIPPING SHIP

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Изобретение относитс к судостроению и касаетс конструировани кормовой оконечности речного судна с упрощенными плоскогранными обводами в районе движителей .The invention relates to shipbuilding and relates to the design of the aft end of a river vessel with simplified flat-edged contours in the area of propulsion.

Известно речное мелкосид щее судно, содержащее кормовую оконечность с диаметральным и бортовыми водоизмещающими скегами, образующими между собой своды туннелей дл размещени под ними движителей и выполненными с плоскогранными носовыми и кормовыми вертикальными пластинами, расположенными под углом к диаметральной плоскости, причем скеги выполнены с кормовыми днищевыми пластинами 1.A river-carrying small-deck vessel is known, containing a stern tip with diametral and side displacement skegs forming arches of tunnels between them to accommodate propulsion under them and made with flat-edged bow and stern vertical plates arranged at an angle to the diametral plane, and the skegs are made with stern bottom plates one.

Недостатками судна вл ютс низкие эксплуатационные качества из-за наличи пластин в кормовой части туннелей, при подъеме которых воздух попадает к полупогруженным движител м, снижа тем самым их т говые показатели, неудовлетворительные ходкость и управл емость судна из-за потерь мощности и рулевой силы при взаимодействии струи от движителей с боковыми стенками диаметрального и бортовых скегов, перекрывающих гидравлическое сечение струи при повороте насадки винта на угол более 15° как на переднем, так и на заднем ходу, а также больщое сопротивление воды движению за счет транца, по5 груженного в воду и составл ющего 0,5- 0,7 ширины судна.The disadvantages of the vessel are low performance due to the presence of plates in the aft part of the tunnels, during which the air gets to the semi-submerged engines, thereby reducing their traction, poor handling and controllability of the vessel. the interaction of the jet from the propellers with the side walls of the diametral and side skegs, which overlap the hydraulic section of the jet when turning the screw nozzle at an angle of more than 15 ° both at the front and at the reverse, as well as e water resistance due to the movement of the transom, PA5 laden in the water and comprising 0,5- 0,7 width vessel.

Цель изобретени - повышение надежности и снижение сопротивлени воды движению судна.The purpose of the invention is to increase reliability and reduce water resistance to the movement of the vessel.

10 Цель достигаетс тем, что у речного мелкосид щего судна кормова оконечность выполнена со средними вертикальными пластинами дл соединени между собой носовых и кормовых вертикальных пластин диаметрального и бортовых скегоБ, расположенными параллельно диаметральной плоскости и симметрично продольным ос м движителей , а кормовые днищевые пластины упо.м нутых скегов наклонены под углом 10-25° к основной плоскости судна.10 The goal is achieved by the fact that in a river small-rowing vessel the stern tip is made with medium vertical plates for connecting between the bow and stern vertical diametral and side skibB plates parallel to the diametrical plane and symmetrically to the longitudinal axes of propulsion, and the stern bottom plates of the prop. chick skeles are inclined at an angle of 10-25 ° to the main plane of the vessel.

Claims

20 In FIG. 1 shows schematically the stern tunnel end of the vessel, the section along the screw buttock; in fig. 2 is the same; the “chulushroggg” projection in FIG. 3 - the same, the projection of the case. The small-sized river vessel includes a hull with a stern tip 1, made with a diametrical 2 and side 3 displacement skegs. Diametric 2, side 3 skegs and a stern overhang form tunnel arches to accommodate propulsion units 4, with skegs 2 and 3 having flat-faceted bow 5 and stern 6 vertical plates at an angle to the center plane of the vessel. Plates 5 and 6 are interconnected by middle vertical plates 7 arranged parallel to the median plane and symmetrically with the propulsion axes 4. Skeleton 2 of the feed plate 8 and skeletal 2 of the feed plate 9 of skegs 3 are inclined at an angle of 10-25 ° to the main plane of the vessel. The plates 5 and 6 mutually interconnected by the plate 7, together with the feeding plate 8 and the bottom 10, form a diametrically displacing skeg 2, and together with the plate 9, the bottom 11 and the bead 12 - onboard displacing skegs

2. The technical and economic effect of the invention lies in the increased reliability of operation of the propulsion systems at the expense of the stern overhang, which prevents the ingress of air to the semi-submerged propellers, and the elimination of turning plates in the aft part of the tunnels; improvement of the ship's performance (propulsion and handling), due to the exclusion of jet interaction from propellers with the surfaces of the skegs in all modes of court operation; as well as reduced water resistance to movement by reducing the submerged area of the stern transom of the vessel. The invention makes it possible to reduce the labor intensity of building a vessel due to simplified hull lines. Claims of the invention A small-sized river vessel containing a stern tip with diametral and onboard displacement skegs, forming between themselves vaults of tunnels for accommodating propulsion underneath and made with flat-edged bow and stern vertical plates arranged at an angle to the diameter plane, and the skegs are made with stern bottoms plates, characterized in that, in order to increase the reliability of reducing the resistance of water to the movement of the vessel, its feed end is made from the middle Vertical plates for connecting the fore and aft vertical plates of the diametral and side skegs parallel to the center plane and symmetrically to the longitudinal axes of the propulsion units, while the bottom plates of the said skegs are inclined at an angle of 10-25 ° to the main plane of the ship. Sources of information taken into account during the examination 1. USSR author's certificate No. 797945, cl. B 63 B 1/08, 04.04.79 (prototype).

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