Speedster

 

(57) Abstract:

Usage: the invention relates to shipbuilding and for the design of buildings glycerolic vessels. The invention consists in that a high-speed vessel includes a housing with spaced thereon nasal step and the main bearing redan, nasal cross step performed with variable deadrise and a flat or keeled Central area crossing the line of the keel, and this Central section has a width of 0.1 to 0.4 of the width of the main carrier of step and out of the water to a height equal to 0,01 - 0,25 its width, and in the aft part of the ship is gliding part of the bottom with the restriction of the bearing width as skegs. In addition, the bottom edges from the Central section of the nasal step in the direction of his swing has angles of deadrise 15 - 90 degrees, and the height of the skegs aft 0.05 - 0.15 of the width of the bearing step and aft planing area is made with a flat bearing surface. In addition, the Central section of the nasal step performed with the sidewall, the distance between which is equal to its width, and maximum height of the sections is 0.1 - 0.3 of width between them. 2 C.p. f-high-speed vessels.

Known Speedster, comprising a housing with on it with crossover sponson and the main bearing step (SU, ed.St. The USSR 1634561, class B 63 B 1/18, 1991).

The disadvantage of such a vessel is low seaworthiness due to the inclination to the longitudinal swinging and insufficient damping of longitudinal oscillations of a ship in waves.

The technical result of the invention is to improve seaworthiness and speed gliding boat.

This technical result is achieved by the fact that high-speed vessel includes a housing located therein with transverse step and the main bearing redan, nasal cross step performed with variable deadrise and a flat or keeled Central area crossing the line of the keel, and this Central section has a width of 0.1 to 0.4 of the width of the main carrier of step and out of the water to a height of 0.01 to 0.25 of its width, and in the aft part of the ship is gliding part of the bottom with the restriction of the bearing width in the form of sections.

In addition, the bottom edges from the Central section of the nasal step in the direction of his swing has angles of deadrise 15 90 degrees, and in the Yong flat bearing surface.

In addition, the Central section of the nasal step performed with the sidewall, the distance between which is equal to its width, and maximum height of the sections is 0.1 to 0.3 of the width between them.

In Fig. 1 shows a side view of a body vessel described in Fig. 2 is a bottom view of Fig. 3 section a-a of Fig.1; Fig. 4 section b-B of Fig.1.

Described Speedster has a housing 1 provided with arrow-shaped main bearing transverse step 2, which is the main supporting wetted surface 3, the perceiver on the go main weight of the vessel. Before the main step 2 has a nasal lateral step 4 variable deadrise, with a flat or malotilate Central section 5 crossing the line of the keel, the edges of which it is the sidewall 6. In the stern there is sponson 7, which is located aft planing bearing section 8, receptive to input the rest of the weight of the vessel. Carrier width section 8 is limited to the aft sidewall 9. In addition, the hull is provided with an additional 10 steps wedge-shaped profile, and bottom transom limb 11.

The bottom edges from the Central section 5 nasal step in the direction of his swing has corners cerevisiae plot is made with a flat bearing surface.

Reducing the magnitude of the vertical overloads acting in the fore part of the hull, the width of the Central section 5 nasal step 4, depending on the distance to the primary of step 2 and the shape of the hull, is 0.1 to 0.4 of the width of the main step 2. This form of nasal step provides the required damping characteristics of longitudinal vibrations with minimum vertical overloads.

To reduce Bryzgalova Central section 5 is limited by the sidewall 6, the maximum height of which is equal to 0.1 to 0.3 of width 5 and height sections are reduced to the nose of the ship. The thickness of the sections is selected the minimum for reasons of strength of their design.

The vessel is planing aft bearing area 8 located at the feed sponson 7. The height of sponson 7 is assigned to the desired landing the ship on the estimated speed.

While driving on the main bearing planing section 3 of the bottom occurs hydrodynamic podhuma power. Increasing the speed of the ship more and more rises out of the water while decreasing its pitch angle. At some distance in front of the main bearing step 2, you can find a place, to defend the I Central section 5 of nasal transverse step 4.

When driving on calm water nasal step does not touch its surface, without affecting the hydrodynamic characteristics of the main bearing surface 3, which therefore can be quite high.

When driving on a rampage nasal step 4 periodically immersed in water. Arising thereon hydrodynamic force prevents the dive, trying to push the bow of the boat out of the water. To ensure the effective damping own longitudinal vibrations of the hull caused by external excitement, the dependence of the lifting force on the forward step 4 from the magnitude of his dives under the water surface should be substantially non-linear, first sharply increasing at a small dive, and then, at the big dives remaining approximately constant.

These conditions satisfy the step variable deadrise with a flat or malotilate Central part 5 located closer to the water surface, and boundary parts with deadrise within 15 to 90 degrees.

Aft bearing area 8 full turn rests on the top of the wave crest, leaving the main keeled bearing step 2. The top of the wave crest is nameno bearing section 8 provides him with the greatest hydrodynamic quality. To give a stern bearing section 8 optimal form and increase the lifting force is installed on the aft sidewall 9, limiting the width of the planing. The height of the aft sections 9 decreases in the direction from the stern to the bow of the ship. The width of the aft rotor section 8, which also has a flat or malotilate working surface, equal to the width of the wave crest in the area of the transom of the vessel and depends on the distance from the step 2, the deadrise angle of the bearing surface 3 and the relative speed.

Additional steps 10 improve the transverse stability of a ship in waves and when driving at full speed on calm water also do not touch its surface.

Transom limb 11 reduces the pitch and the resistance of the vessel in a transitional mode.

1. High-speed vessel, comprising a housing located therein with transverse step and the main bearing step, characterized in that the nasal cross step performed with variable deadrise and a flat or keeled Central area crossing the line of the keel, and this Central section has a width of 0.1 to 0.4 of the width of the bearing step, and made with the possibility of leaving the water on high, ravnina in the form of sections.

2. Vessel under item 1, characterized in that the bottom edges from the Central section of the nasal step in the direction of his swing has angles of deadrise 15

90oand the height of the aft sections are equal to 0,05 0,15 width of the bearing step, and aft planing area is made with a flat bearing surface.

3. The ship is on PP.1 and 2, characterized in that the Central section of the nasal step indoors was held with the sidewall, the distance between which is equal to its width, and maximum height of the sections is 0.1 to 0.3 width between them.

 

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