CN203958535U - The following low-resistance boat hull of design load water line - Google Patents
The following low-resistance boat hull of design load water line Download PDFInfo
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- CN203958535U CN203958535U CN201320653978.9U CN201320653978U CN203958535U CN 203958535 U CN203958535 U CN 203958535U CN 201320653978 U CN201320653978 U CN 201320653978U CN 203958535 U CN203958535 U CN 203958535U
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Abstract
The utility model relates to the following low-resistance boat hull of a kind of design load water line, belongs to ship type design field, is mainly the design of ship design underwater hull.Screw propeller is arranged on stem, and shaft bossing is designed to bullet; Shaft bossing and shaft bossing arrange respectively an arc diversion flume with the transition position both sides between upper hull; Bow waterline more than shaft bossing is designed to have the fertile V-arrangement in thin mouthful of the end of guide functions, and bow surface normal and navigation compare little district, angular separation are designed near 1/4th and 3/4ths beam; Stem bottom arranges the diversion flume of two inclinations in main engine room both sides; Adopt symmetrical stem or asymmetric stem; Stern is designed to stream line pattern taper; Bow stern respectively arranges a runner that connects port and starboard, and inside arranges the needs that turn to that hydraulic efficiency jet propulsion system meets boats and ships.Utilize bow stern Profile Design and screw propeller to be arranged on the head and the tail flow field that stem improves boats and ships, weaken the adverse effect of water to ship's navigation, reduce ship resistance.
Description
Technical field
The utility model relates to the following low-resistance boat hull of a kind of design load water line, belong to ship type design field, specifically by screw propeller design at stem, and by stem and the Profile Design below ship stern design load water line, reduce the ship type of suffered resistance in ship's navigation process.
Background technology
In order fully to understand the background technology of ship design aspect, on this website of Chinese patent information center of State Intellectual Property Office of the People's Republic of China, take " boats and ships " as retrieval key element, retrieve altogether 17876 patents, contained relevant with boats and ships or mentioned all patents of boats and ships, by relevant with the utility model being described below wherein.
Application number is 01110399, and name is called this patent of boats and ships of fore band screw propeller, and screw propeller is equipped with in fore outside, and the rotation axis of screw propeller is towards the proceeds posterolateral of boats and ships, and the relative hull of the rotation axis of screw propeller can change direction; Fore outside connects an opening towards the water-blocking groove in ship the place ahead, by the water of taking away before boats and ships, to two proceeds posterolateral, is ejected and falls resistance.The screw propeller that is installed on fore both sides is much smaller with respect to the yardstick of hull bench section, although this mode can reduce ship resistance to a certain extent, but effect is very limited, and in this patent, the propelling of boats and ships mainly still relies on the screw propeller of ship stern, the screw propeller of ship stern will produce negative pressure and whirlpool, and the boats and ships that this kind of boats and ships are arranged on ship stern with general screw propeller now do not have how many advantages.
Application number is 200610032020, and name is called this patent of pre-positioning type ship craft, at Huo Ce the place ahead, the place ahead of boats and ships mounting bracket, then screw propeller is installed on support, or at stem, screw propeller is installed, and between screw propeller and hull, baffle plate is installed.First, by support, screw propeller is installed and is there is larger difficulty; Secondly, screw propeller and support thereof have a big chunk outside extreme vessel breadth, and this is irrational; Again, screw propeller is rack-mount, be difficult to screw propeller or waterjet propulsor high-performance power is provided, the propulsive force of boats and ships is very restricted, be difficult to meet boats and ships large-tonnage demand; Although example 7 is wherein also screw propeller, is arranged on stem and is directly installed on hull, but baffle plate is wherein unnecessary completely, because the water slug of accelerating through screw propeller can produce resistance on hull, impact on described therein baffle plate and can produce resistance equally, and may also can produce whirlpool after installation baffle plate, cause resistance larger; Meanwhile, because the yardstick of screw propeller is much smaller with respect to the yardstick of hull, only relying on screw propeller to be arranged on stem, to reduce ship resistance be very difficult, and it is most important that the Profile Design of ship bow stern also seems, in this patent, do not relate to.Only have and screw propeller is arranged on to stem and coordinates rational bow stern molded line, just can make boats and ships obtain good resistance performance.
Application number is that 201120194651,201020283862,200820117882,200820117861,200810200340,200610167503 and 94200452 these patent thinkings are substantially similar, all pipeline or the space that adopts from stem to ship stern or perforation is set to both sides, in the passage connecting before and after screw propeller is arranged on or the inlet/outlet of passage.Water is sucked from stem, then from ship stern or both sides, eject the resistance reducing ship's navigation process.The boats and ships of design by this way: first, from stem to ship stern or to both sides, space in the pipeline of perforation or the more boats and ships of space hold is set, loses the useful volume of more hull; Secondly, if less runner will flow through a large amount of water, very large friction drag will be produced, and the water yield of suction is much smaller with respect to the water yield in stem dead ahead.Have effect also not obvious.If front thruster is as above set described in patent, can not cause substantial pressure to slacken to stem higher-pressure region, the pressure that only effectively reduces stem higher-pressure region just can effectively reduce ship resistance.
Application number is 201080005671 these patents, description be a kind ofly to utilize mode that stem caves in backward to cushion wave to make its bow wave absorption ship weakening, utilize rectification and the wave absorbing function of bulbous bow simultaneously.In this patent stem backward sunk part the waterline shape that makes this region is become to loose, in ship's navigation process, increased the resistance of current to hull.The rectification of bulbous bow and wave absorbing function, be actually the feature of utilizing bulbous bow to protrude forward, first with boats and ships before water have an effect, by extruding, improve water at the tangential flow velocity of hull surface, the swabbing action of recycling current is eliminated the wave of stem, the prerequisite of wave absorption is that the pressurization of bulbous bow top causes crowded stream, and this will cause bulbous bow top and the larger region of root large area pressure, causes the suffered form resistance of boats and ships to increase.
For most screw propeller, be installed on the heavy type freighter of ship stern, the thrust that boats and ships advance comes from screw propeller to the antagonistic force of pusher water generates, the resistance promotion boats and ships that this antagonistic force overcomes water advance, according to the quality of water of the characteristic of application force and antagonistic force and unit time internal propeller effect and the difference of boats and ships total mass, can find, in order to produce the spent energy major part of propulsive force, be consumed in and push away water institute work, the just screw propeller of this class boats and ships utilization pushes away the antagonistic force of water generates, screw propeller is arranged on stern and has produced a unfavorable phenomenon: the current after screw propeller effect are fast to the rear diffluence of ship stern, make to produce a negative pressure after propeller disk, originally boats and ships will produce negative pressure at ship stern to overtake, the stack of these two negative pressure has produced very large suction backward to boats and ships, and this is an important sources of ship resistance, the negative pressure producing at ship stern because travelling due to the flowing power of water and boats and ships in ship running process causes a large amount of water to flow towards ship stern, the negative pressure space producing at ship stern while filling up ship running in time, because screw propeller is arranged on ship stern, water after screw propeller effect is almost contrary to flowing to the part water of filling up ship stern negative pressure space, cause the negative pressure space of ship stern to can not get well filling up, the water velocity on hull stern surface is increased, pressure further reduces, ship resistance is increased, two flow to contrary current has consumed their kinetic energy fast because producing a large amount of whirlpools, the continuous evanishment of a large amount of whirlpools of ship stern has shown to us the dissipation of energy process that the water after screw propeller effect has, stem has larger area outside plate normal very little with the angle that ship running direction becomes, during ship's navigation, because the water on these regions is difficult to flow away rapidly, speed with respect to hull is very little, even part water has larger speed (the absolute velocitye direction that is part water is consistent with direction of ship travel) on direction of ship travel, and these regions will form higher-pressure region, produces very large resistance, when especially these regions are positioned near center buttock, the resistance of its generation is larger.
Summary of the invention
The problem that is unfavorable for reducing ship resistance existing in order to solve current above-mentioned various ships, take into full account screw propeller and be arranged on stem to reducing effect, the crowded stream wave absorption principle of bow molded line on the impact of form resistance, bulbous bow of boats and ships bow resistance, and after screw propeller is arranged on stem, the disturbance that ship stern flow field is subject to still less, diffusion more fully, stern do not have screw propeller to make the factors such as stern negative pressure reduces.The following low-resistance boat hull of the utility model design load water line is arranged on stem by screw propeller, axial line is on center buttock, the extreme end of design load water line of take is 0 station, be 20 stations foremost, in order to make the accompanying drawing can be larger, the details of better outstanding bow stern, in molded line schematic diagram has dwindled the length of square body (14), has approximately omitted 11 station captains' square body; The following low-resistance boat hull of the utility model design load water line is designed to symmetrical stem, and the course shift that the asymmetric impact of water after screw propeller effect can produce on symmetrical stem is designed to stem asymmetric stem when this impact is larger; Each waterline of the above V-arrangement hull of shaft bossing (4) is designed to have the fertile V-arrangement (26) in thin mouthful of the end of guide functions, the less most of region (7) in bow surface normal and navigation angular separation is designed near 1/4th and 3/4ths beam, to eliminate stem high pressure Resistance Level, or each waterline of bow more than shaft bossing directly designs forming V-shape (43,44); Shaft bossing (11) design, is designed to divide more fertile, close stem part thinner bullet near ship stern on the hull near hull bottom at stem; Shaft bossing (11) arranges respectively an arc diversion flume (3) with the both sides, junction of the above V-arrangement hull of shaft bossing (4), or directly by the above V-arrangement hull of shaft bossing (4), is transitioned into shaft bossing (11); Stem bottom respectively arranges an inclination diversion flume (8) in main engine room (9) both sides, or directly the hull design beyond bow shaft bossing is become by hull bottom near the taper (35) to inclination, two side of a ship side direction center buttock direction convergents stem design load water line; Make full use of chicken shape of tail shuiqiu diffusion; Stern is designed to stream line pattern taper (1); Bow stern respectively arranges a runner (12,13) that connects port and starboard, and inside arranges the needs that turn to that hydraulic efficiency jet propulsion system (23) meets boats and ships.
The following low-resistance boat hull of the utility model design load water line solves the first technical scheme that its technical matters adopts: screw propeller is installed on stem, axis is on center buttock, main frame is also correspondingly arranged on stem, and stem and ship stern molded line made to corresponding design, eliminate screw propeller and be arranged on screw propeller that ship stern produces to rough sledding such as ship stern flow impacts.Although flowing through boats and ships part bow surface, the high-velocity flow after screw propeller effect produced certain resistance, but also can produce a negative pressure that is conducive to reduce resistance because of the rapid flow of part hull surface current, stem part water is siphoned away and is also conducive to reduce resistance simultaneously, shaft bossing in the utility model (11) be designed near ship stern divide more fertile, near the thinner bullet of stem part, can effectively reduce the resistance producing because of the current after screw propeller effect and hull effect.Each waterline of the above V-arrangement hull of stem shaft bossing (4) is designed to the thin mouthful fertile V-arrangement in the end, the resistance that while coordinating the pumping function of screw propeller to reduce the wave making resistance of stem and ship's navigation, bow water body produces the impact of boats and ships; By less most of region (7) design of bow surface normal and navigation angular separation near 1/4th and 3/4ths beam, at stem, arc diversion flume (3) is set and inclination diversion flume (8) is led away the water before the water after screw propeller effect and part ship, weaken the effect of water and stem, to reduce the resistance of stem, more than 95% normal to a surface of bow with navigate by water angular separation between 30 to 90 degree; By ship stern being designed to stream line pattern taper (1), and screw propeller is arranged on stem, make ship stern flow obtain sufficient diffusion, utilize the formation principle of chicken wake flow to reduce the resistance that ship stern negative pressure causes, or the resistance when designing certain square stern (51) and reducing high speed.The following low-resistance boat hull of the utility model design load water line is designed to symmetrical stem, but because the glassware for drinking water of bow after screw propeller accelerates has certain curl, the course shift that the asymmetric impact of water after screw propeller effect can produce on symmetrical stem is designed to stem asymmetric stem when this impact is larger; A runner (12,13) that connects port and starboard is respectively set on the stream line pattern taper (1) of stern and the shaft bossing (11) of bow, and inside arranges hydraulic efficiency jet propulsion system, meets the needs that turn to of boats and ships.This scheme does not change the driving effect of screw propeller to boats and ships, but the pressure condition of boats and ships head and the tail and the flow regime of current are become, is more conducive to reduce ship resistance.
The bow of the following low-resistance boat hull of the utility model design load water line near center buttock from lower to upper to design load water line be shaft bossing (11), the above V-arrangement hull of shaft bossing (4), design load water line (19) successively, shaft bossing (11) respectively has an arc diversion flume (3) to the transition position both sides of the above V-arrangement hull of shaft bossing (4).The intension of the above V-arrangement hull of shaft bossing (4) refers to that each waterline of this part hull is designed to the fertile V-arrangement (26) in thin mouthful of the end, and each waterline adopts indent arc (29) foremost, and back to back part adopts outer convex (25); This part hull from 20 stations near the length 19 stations in beam increase seldom, the arc that waterline is indent, within the scope of near the captain near 18 stations 19 stations, waterline becomes evagination by indent gradually, beam increase is very fast, and within the scope of the captain from 18 stations to 17 stations, the increase of the beam slows down again gradually.
The part that shaft bossing (11) is connected with the above V-arrangement hull of shaft bossing (4) adopts smooth surface transition, the remainder of shaft bossing (11) is designed to divide more fertile, close stem part thinner bullet near ship stern, and on whole shaft bossing side surface, the section of each point and the angle of boats and ships axial line are between 0-45 degree.
The distance of arc diversion flume (3) from stem to ship stern direction from center buttock becomes greatly gradually, before inclination diversion flume (8) front end, disappears; Arc diversion flume (3) passes through smooth surface transition with shaft bossing (11) and the above V-arrangement hull of shaft bossing (4) junction, connects together by fairing curved surface with the inclination diversion flume (8) of main engine room both sides.
Near the main engine room (9) of stem bottom, respectively there is an inclination diversion flume (8) both sides, the width of inclination diversion flume (8) is between 0.5 to 1.8 times of propeller radius, the height design of the vertex (5) of inclination diversion flume (8) near the height of the vertex (20) of screw propeller between design load water line (19), the lower end of inclination diversion flume (8) is connected with hull bottom, the smooth surface blending in junction, the line of centers of inclination diversion flume (8) becomes 6 to miter angle with boats and ships axis, and the water after screw propeller effect is imported to hull bottom.
Each buttock line of bow inclination diversion flume (8) outside is approximately circular arc (15), buttock line in inclination diversion flume (8) is approximately L shaped (16), bow shaft bossing maximum width is with interior each buttock line being shaped as from design load water line to base plane: first by the downward rear of stem design load water line with arc tilt (17), back to back one section gradually becomes approximately perpendicular to horizontal surface (18), ensuing one section gradually to stem direction with arc convex (21), projection is shunk (22) to ship stern direction again after to a certain extent gradually.Each waterline first half shape in shaft bossing (11) altitude range is respectively the shape (28) on the limit of the trapezoidal curve in the bent limit of recessed top evagination in bottom, the V-arrangement (27) of recessed top evagination in bottom, the V-arrangement (31) that V-arrangement (30) and bottom are looser, latter half waterline is because of the existence of main engine room (9) both sides inclination diversion flume (8), present along beam direction and start to ship stern depression and outstanding to stem, finally to ship stern direction, move closer to mountain peak-mountain valley-mountain peak shape (32) of topside, the shape of whole piece waterline is mountain peak-mountain valley-mountain peak-mountain valley-mountain peak shape (46) from larboard to starboard.
Whole bow is mainly formed by above a few part surface compositions, and junction is with smooth surface transition.Stem body lines is foremost water-drop-shaped (10) at shaft bossing place, near design load water line, it is partly thin V-arrangement (2), whole piece body lines is shaped as the combined shaped (47) of water-drop-shaped (10) and thin V-arrangement (2), from stem to ship stern direction, body lines is gradually from the combined shaped (47) of water-drop-shaped and thin V-arrangement, develop into thin mouthful of slightly large U-shaped (48) of the large waist in the end, the U-shaped that oral area is larger than bottom, waist is slightly thin (49), the U-shaped (50) that respectively has an arc notch, oral area to expand to both sides, bottom, finally develops into U-shaped (6).
For conventional ship type, the less most of region of the angle of stem surface normal and direction of ship travel is mostly near the center buttock of boats and ships.The structural attitude of the following low-resistance boat hull stem of the utility model design load water line waterline make most of region (7) that the angle of stem surface normal and direction of ship travel is less be divided into two and away from center buttock design the both sides at center buttock, these two regions lay respectively near 1/4th and 3/4ths beam, indent V-arrangement foremost (shape of each waterline) stem increases near the relative velocity of fluid hull surface, although increased to a certain extent friction drag, but therefore hull surface normal also increases with the flow velocity on navigation compare little region, angular separation, cause the pressure on this region to reduce, and the resistance that pressure herein produces ship's navigation is very large, the pressure that reduces this region will effectively reduce the form resistance of boats and ships, meanwhile, because the average relative flow velocity of stem increases, pressure reduces, can effectively reduce wave making resistance.The utility model has especially been eliminated near the conventional ship type phenomenon that a large amount of fluids are detained or move ahead with ship center buttock when navigation, reduces near the pressure of center buttock, thereby effectively reduces resistance.The water that screw propeller advances part obstruction boats and ships is pushed stern to, while also making ship's navigation, resistance reduces, although the water after screw propeller effect increases because the increase of speed makes the suffered friction drag of boats and ships, and water also can increase the impact of stem, but because each side having an arc diversion flume (3) and an inclination diversion flume (8), and the normal of the hull surface that the water after screw propeller effect flows through and the angle of direction of ship travel be very little (0-30 degree) all, in addition, screw propeller is arranged on stem, the water that flows through screw propeller is very more unobvious than near the water speed recruitment that does not flow through screw propeller, therefore when boats and ships advance, the resistance that water slug after the suffered screw propeller effect of boats and ships produces not is very large.Water during ship's navigation before ship and hull have and the equal-sized relative velocity of ship's speed, and the utility model changes the flow regime that makes current less, is conducive to reduce ship resistance.
The following low-resistance boat hull stern of the utility model design load water line underwater is designed to stream line pattern taper (1).On each buttock line of stern from hull bottom to ship stern design load water line, each waterline from extreme vessel breadth to all shrinking with more uniform amplitude near center buttock, the smooth surface blending in junction of stern and square body (14); Each waterline linearly constriction (33) is 15 to 60 degree with the angle of center buttock; The part that each buttock line linearly shrinks (24) is 15 to 60 degree with the angle of base plane; The stream line pattern taper (1) of stern is just ended near hull bottom is retracted to waterline always, the side's of not having stern; Or be retracted to the following a certain draft of the design load water line stern transom plate place that arrives, the side's of leaving stern (51).
Stern shrinks more uniformly and can make ship stern flow more stable, and the flow regime on each streamline changes less, reduces the probability that stern produces whirlpool, is beneficial to reduce resistance.Although square stern boats and ships can form shuiqiu on the quarter when high speed, produce virtual length effect, be conducive to reduce wave making resistance, but in fact from vertex and the ship aft draft of shuiqiu, there is larger depth displacement just can find, shuiqiu is actually the result of stern high-velocity flow diffusion, although square stern has reduced resistance to a certain extent by virtual length effect, but do not make full use of the diffusion effect of stern high-velocity flow, therefore when certain speed, stern is used taper just to end and will be conducive to reduce ship resistance near hull bottom is retracted to waterline always, but the side's of design stern can obtain more preferably resistance performance under specific speed, so need not square stern or stay a certain size square stern to determine according to the applied speed of a ship or plane of the utility model, screw propeller is arranged on stem, ship stern flow has lacked the interference of screw propeller, stable and the abundant diffusion that is conducive to stern current, also be conducive to reduce ship resistance.
In bow, stern is connected: stern underwater is designed to stream line pattern taper (1).The centre portion of boats and ships adopts the square body (14) with rounding.The connecting bridge of bow and stern and square body (14) adopts smooth curve transition.
The following low-resistance boat hull of the utility model design load water line solves the second technical scheme that its technical matters adopts: shaft bossing (11) adopts smooth surface transition with the hull junction beyond shaft bossing, the remainder of shaft bossing (11) is designed to divide more fertile, close stem part thinner bullet near ship stern, and on whole shaft bossing (11) side surface, the section of each point and the angle of boats and ships axial line are between 0-45 degree.Hull design beyond bow shaft bossing becomes near the taper (35) to inclination, two side of a ship side direction center buttock direction convergents stem design load water line by hull bottom, make stem 70% with the normal direction everywhere of upper surface and the angle of direction of ship travel between 40 to 90 degree, thereby reduce resistance; The bottom surface (36) of almost plane that shaft bossing (11) and main engine room (9) both sides tilt and the angle of base plane are between 10 to 45 degree; Each waterline of the above V-arrangement hull of shaft bossing (4) designs respectively the V-arrangement (44) of forming V-shape (43) and funnel midship section shape, and each waterline in shaft bossing altitude range is designed to the midship section shape (45) of funnel; Bow line shape is being approximately right angle through the first bevelling shape (37) after rounding again near topside, when approaching gradually, center buttock progressively becomes L shaped (38), in the time of near center buttock, buttock line being shaped as from design load water line to base plane: first by the downward rear inclination of stem design load water line (39), back to back one section gradually becomes approximately perpendicular to horizontal surface (40), ensuing one section gradually to stem direction projection (41), projection is shunk (42) to ship stern direction again after to a certain extent gradually; Each body lines of bow is the midship section shape (34) of the pot cover of dribbling handle shape handle.Stern underwater is designed to stream line pattern taper (1).On each buttock line of stern from hull bottom to ship stern design load water line, each waterline from extreme vessel breadth to all shrinking with more uniform amplitude near center buttock, the smooth surface blending in junction of stern and square body (14); Each waterline linearly constriction (33) is 15 to 60 degree with the angle of center buttock; The part that each buttock line linearly shrinks (24) is 15 to 60 degree with the angle of base plane; The stream line pattern taper of stern is just ended near hull bottom is retracted to waterline always, the side's of not having stern; Or be retracted to the following a certain draft of the design load water line stern transom plate place that arrives, the side's of leaving stern (51).
The beneficial effects of the utility model are: screw propeller is arranged on stem, have eliminated the impact of screw propeller on ship stern flow, have reduced boats and ships eddy resistance; Take stem simultaneously away and partly hinder the water that boats and ships advance, reduced the resistance of bow because of water and boats and ships effect generation.By foreship stem line, design the pumping function that coordinates screw propeller, reduced the wave making resistance of stem, and the resistance that before ship, water body produces the impact of boats and ships during ship's navigation; The less most of region of angle of stem surface normal and direction of ship travel is divided into two and away from center buttock, be distributed in the both sides of center buttock, relative velocity on this region is increased, pressure decreased, reduced the form resistance of boats and ships, or utilize the design of stem in example 2 make stem 70% with the normal direction everywhere of upper surface and the angle of direction of ship travel between 40 to 90 degree, reduce the form resistance of boats and ships.By ship stern Profile Design and screw propeller, be arranged on stem, ship stern flow has obtained sufficient diffusion, utilizes the formation principle of chicken wake flow to reduce the resistance that stern negative pressure causes simultaneously.This ship type simultaneously from a plurality of affect ship resistance because usually reducing ship resistance, in equal transport capacity situation, the resistance performance of the following low-resistance boat hull of the utility model design load water line will obviously be better than other ship types.
Accompanying drawing explanation
Fig. 1. the molded line schematic diagram of the utility model example 1.
Fig. 2. the body lines schematic diagram of the utility model example 1 (enlarged drawing of Fig. 2 in Fig. 1).
Fig. 3. the bow line schematic diagram of the utility model example 1 (enlarged drawing of Fig. 3 in Fig. 1).
Fig. 4. the bow half-breadth waterline schematic diagram (enlarged drawing of Fig. 4 in Fig. 1) of the utility model example 1.
Fig. 5. the stern half-breadth waterline schematic diagram (enlarged drawing of Fig. 5 in Fig. 1) of the utility model example 1.
Fig. 6. the stern buttock line schematic diagram of the utility model example 1 (enlarged drawing of Fig. 6 in Fig. 1).
Fig. 7. the part lines independence of the utility model example 1, enlarged diagram.
Fig. 8. the following low-resistance boat hull of the utility model design load water line have stern transom plate with without the contrast schematic diagram of stern transom plate.
Fig. 9. the partial enlarged drawing (partial enlarged drawing in Fig. 4) in the bow half-breadth waterline schematic diagram of the utility model example 1.
Figure 10. the molded line schematic diagram of the utility model example 2.
Figure 11. the body lines schematic diagram of the utility model example 2 (enlarged drawing of Figure 11 in Figure 10).
Figure 12. the bow line schematic diagram of the utility model example 2 (enlarged drawing of Figure 12 in Figure 10).
Figure 13. the bow half-breadth waterline schematic diagram (enlarged drawing of Figure 13 in Figure 10) of the utility model example 2.
Figure 14. the stern half-breadth waterline schematic diagram (enlarged drawing of Figure 14 in Figure 10) of the utility model example 2.
Figure 15. the stern buttock line schematic diagram of the utility model example 2 (enlarged drawing of Figure 15 in Figure 10).
Figure 16. the partial enlarged drawing (partial enlarged drawing in Figure 13) in the bow half-breadth waterline schematic diagram of the utility model example 2.
the specific embodiment
The 1st example, the following low-resistance boat hull screw propeller of the utility model design load water line is arranged on stem, and axis is on center buttock, and main frame is also correspondingly arranged on stem.The bow of the following low-resistance boat hull of design load water line near center buttock from lower to upper to design load water line be shaft bossing (11), the above V-arrangement hull of shaft bossing (4), design load water line (19) successively, shaft bossing (11) respectively has an arc diversion flume (3) to the transition position both sides of the above V-arrangement hull of shaft bossing (4), shaft bossing (11) is and then main engine room (9) below, and respectively there is an inclination diversion flume (8) both sides of main engine room (9); Stern is designed to stream line pattern taper (1), stern stream line pattern taper (1) and the smooth surface blending in square body (14) junction.More than 95% normal to a surface of bow and navigation angular separation are between 30 to 90 degree; Bow is designed to symmetrical stem or asymmetric stem; Two runners (12,13) that connect port and starboard are set on the stream line pattern taper (1) of stern and the shaft bossing (11) of bow, and inside arranges the needs that turn to that hydraulic efficiency jet propulsion system (23) meets boats and ships.Each waterline of the above V-arrangement hull of shaft bossing (4) is designed to the fertile V-arrangement (26) in thin mouthful of the end, and each waterline adopts indent arc (29) foremost, and back to back part adopts outer convex (25); This part hull from 20 stations near the length 19 stations in beam increase seldom, the arc that waterline is indent, within the scope of near the captain near 18 stations 19 stations, waterline becomes evagination by indent gradually, beam increase is very fast, and within the scope of the captain from 18 stations to 17 stations, the increase of the beam slows down again gradually; The part that shaft bossing (11) is connected with the above V-arrangement hull of shaft bossing (4) adopts smooth surface transition, the remainder of shaft bossing (11) is designed to divide more fertile, close stem part thinner bullet near ship stern, and on whole shaft bossing side surface, the section of each point and the angle of boats and ships axial line are between 0-45 degree; The distance of arc diversion flume (3) from stem to ship stern direction from center buttock becomes greatly gradually, before inclination diversion flume (8) front end, disappears; Arc diversion flume (3) passes through smooth surface transition with shaft bossing (11) and the above V-arrangement hull of shaft bossing (4) junction, connects together by fairing curved surface with the inclination diversion flume (8) of main engine room (9) both sides; Each buttock line of bow inclination diversion flume outside is approximately circular arc (15), buttock line in inclination diversion flume is approximately L shaped (16), bow shaft bossing maximum width is with interior each buttock line being shaped as from design load water line to base plane: first by the downward rear of stem design load water line with arc tilt (17), back to back one section gradually becomes approximately perpendicular to horizontal surface (18), ensuing one section gradually to stem direction with arc convex (21), projection is shunk (22) to ship stern direction again after to a certain extent gradually; Near the main engine room (9) of stem bottom, respectively there is an inclination diversion flume (8) both sides, the width of inclination diversion flume (8) is between 0.5 to 1.8 times of propeller radius, the height design of the vertex (5) of inclination diversion flume (8) near the height of the vertex (20) of screw propeller between design load water line (19), the lower end of inclination diversion flume (8) is connected with hull bottom, the smooth surface blending in junction, the line of centers of inclination diversion flume (8) becomes 6 to miter angle with boats and ships axis, and the water after screw propeller effect is imported to hull bottom.Each waterline first half shape in shaft bossing (11) altitude range is respectively the shape (28) on the limit of the trapezoidal curve in the bent limit of recessed top evagination in bottom, the V-arrangement (27) of recessed top evagination in bottom, the V-arrangement (31) that V-arrangement (30) and bottom are looser, latter half waterline is because of the existence of main engine room both sides inclination diversion flume, present along beam direction and start to ship stern depression and outstanding to stem, finally to ship stern direction, move closer to mountain peak-mountain valley-mountain peak shape (32) of topside, the shape of whole piece waterline is mountain peak-mountain valley-mountain peak-mountain valley-mountain peak shape (46) from larboard to starboard.Stern underwater is designed to stream line pattern taper (1).On each buttock line of stern from hull bottom to ship stern design load water line, each waterline from extreme vessel breadth to all shrinking with more uniform amplitude near center buttock, the smooth surface blending in junction of stern and square body (14); Each waterline linearly constriction (33) is 15 to 60 degree with the angle of center buttock; The part that each buttock line linearly shrinks (24) is 15 to 60 degree with the angle of base plane; The stream line pattern taper (1) of stern is just ended near hull bottom is retracted to waterline always, the side's of not having stern; Or be retracted to the following a certain draft of the design load water line stern transom plate place that arrives, the side's of leaving stern (51).
Second example, shaft bossing (11) adopts smooth surface transition with the hull junction beyond shaft bossing, the remainder of shaft bossing (11) is designed to divide more fertile, close stem part thinner bullet near ship stern, and on whole shaft bossing side surface, the section of each point and the angle of boats and ships axial line are between 0-45 degree.Hull design beyond bow shaft bossing becomes near the taper (35) to inclination, two side of a ship side direction center buttock direction convergents stem design load water line by hull bottom, make stem 70% with the normal direction everywhere of upper surface and the angle of direction of ship travel between 40 to 90 degree, thereby reduce resistance; The bottom surface (34) of almost plane that shaft bossing (11) and main engine room (9) both sides tilt and the angle of base plane are between 10 to 45 degree; Each waterline of the above V-arrangement hull of shaft bossing (4) designs respectively the V-arrangement (44) of forming V-shape (43) and funnel midship section shape, and each waterline in shaft bossing altitude range is designed to the midship section shape (45) of funnel; Bow line shape is being approximately right angle through the first bevelling shape (37) after rounding again near topside, when approaching gradually, center buttock progressively becomes L shaped (38), in the time of near center buttock, buttock line being shaped as from design load water line to base plane: first by the downward rear inclination of stem design load water line (39), back to back one section gradually becomes approximately perpendicular to horizontal surface (40), ensuing one section gradually to stem direction projection (41), projection is shunk (42) to ship stern direction again after to a certain extent gradually; Each body lines of bow is the midship section shape (34) of dribbling handle shape handle pot cover.Stern underwater is designed to stream line pattern taper (1).On each buttock line of stern from hull bottom to ship stern design load water line, each waterline from extreme vessel breadth to all shrinking with more uniform amplitude near center buttock, the smooth surface blending in junction of stern and square body (14); Each waterline linearly constriction (33) is 15 to 60 degree with the angle of center buttock; The part that each buttock line linearly shrinks (24) is 15 to 60 degree with the angle of base plane; The stream line pattern taper of stern is just ended near hull bottom is retracted to waterline always, the side's of not having stern; Or be retracted to the following a certain draft of the design load water line stern transom plate place that arrives, the side's of leaving stern (51).
Above-mentioned two examples are only two kinds of typical implementations of the following low-resistance boat hull of the utility model design load water line; not to the defining of the utility model right, utilize the formed ship type of reasonable combination of the different designs of hull diverse location in claims all should belong to rights protection scope of the present utility model.
Claims (3)
1. a ship design underwater low-resistance boat hull, it is mainly the hull of ship design underwater, screw propeller is arranged on bow, it is characterized in that: shaft bossing (11) designs at stem on the hull near hull bottom, whole shaft bossing removes the part of joining with the above V-arrangement of shaft bossing (4) hull, be shaped as near ship stern and divide more fertile, close stem part thinner cone-shaped, propeller axis is on center buttock; Each waterline of the above V-arrangement hull of shaft bossing (4) is designed to have the fertile V-arrangement (26) in thin mouthful of the end of guide functions, the less most of region (7) in bow surface normal direction and navigation angular separation is designed near 1/4th and 3/4ths beam, or each waterline of the above V-arrangement hull of shaft bossing (4) directly designs forming V-shape (43,44); Shaft bossing (11) arranges respectively an arc diversion flume (3) with the both sides, junction of the above V-arrangement hull of shaft bossing (4), or directly by the above V-arrangement hull of shaft bossing (4), is transitioned into shaft bossing (11); Stem bottom respectively arranges an inclination diversion flume (8) in main engine room (9) both sides, or directly the hull design beyond bow shaft bossing is become by hull bottom near the taper (35) to inclination, two side of a ship side direction center buttock direction convergents stem design load water line; Adopt symmetrical stem or asymmetric stem; Stern is designed to stream line pattern taper (1); Bow stern respectively arranges a runner (12,13) that connects port and starboard, and inside arranges the needs that turn to that hydraulic efficiency jet propulsion system (23) meets boats and ships.
2. the following low-resistance boat hull of design load water line according to claim 1, it is characterized in that: the part that shaft bossing (11) is connected with the above V-arrangement hull of shaft bossing (4) adopts smooth surface transition, the remainder of shaft bossing (11) is designed to divide more fertile, close stem part thinner bullet near ship stern, and on whole shaft bossing (11) side surface, the section of each point and the angle of boats and ships axial line are between 0 to 45 degree; Each waterline first half shape in shaft bossing (11) altitude range is respectively the looser V-arrangement (31) in V-arrangement (27), V-arrangement (30) and bottom of recessed top evagination in the shape (28), bottom on the limit of the trapezoidal curve in the bent limit of recessed top evagination in bottom, latter half waterline is because of the existence of main engine room both sides inclination diversion flume (8), present along beam direction and start mountain peak-mountain valley-mountain peak shape (32) of caving in and protruding to stem direction to ship stern direction, the shape of whole piece waterline is mountain peak-mountain valley-mountain peak-mountain valley-mountain peak shape (46) from larboard to starboard.
3. the following low-resistance boat hull of design load water line according to claim 1, is characterized in that: the distance of arc diversion flume (3) from stem to ship stern direction from center buttock becomes greatly gradually, before inclination diversion flume (8) front end, disappears; Arc diversion flume (3) passes through smooth surface transition with shaft bossing (11) and the above V-arrangement hull of shaft bossing (4) junction, connects together by fairing curved surface with the inclination diversion flume (8) of main engine room both sides.
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| CN201320653978.9U CN203958535U (en) | 2013-10-22 | 2013-10-22 | The following low-resistance boat hull of design load water line |
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| CN201320653978.9U CN203958535U (en) | 2013-10-22 | 2013-10-22 | The following low-resistance boat hull of design load water line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106828773A (en) * | 2017-02-21 | 2017-06-13 | 中国海洋石油总公司 | A kind of FPSO shiplines method for designing |
| CN111674524A (en) * | 2020-06-08 | 2020-09-18 | 大连理工大学 | Bottom-up molded line layered design method for ballastless water ship |
| WO2020215926A1 (en) * | 2019-04-24 | 2020-10-29 | 高延军 | Drag-reducing boat |
| CN112722228A (en) * | 2021-02-24 | 2021-04-30 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | Underwater smoke exhaust pipe structure of ship |
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2013
- 2013-10-22 CN CN201320653978.9U patent/CN203958535U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828773A (en) * | 2017-02-21 | 2017-06-13 | 中国海洋石油总公司 | A kind of FPSO shiplines method for designing |
| CN106828773B (en) * | 2017-02-21 | 2018-08-24 | 中国海洋石油集团有限公司 | A kind of FPSO shiplines design method |
| WO2020215926A1 (en) * | 2019-04-24 | 2020-10-29 | 高延军 | Drag-reducing boat |
| CN111674524A (en) * | 2020-06-08 | 2020-09-18 | 大连理工大学 | Bottom-up molded line layered design method for ballastless water ship |
| CN111674524B (en) * | 2020-06-08 | 2022-03-04 | 大连理工大学 | Bottom-up molded line layered design method for ballastless water ship |
| CN112722228A (en) * | 2021-02-24 | 2021-04-30 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | Underwater smoke exhaust pipe structure of ship |
| CN112722228B (en) * | 2021-02-24 | 2022-10-21 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | Underwater smoke exhaust pipe structure of ship |
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Granted publication date: 20141126 Termination date: 20181022 |