CN103612707A - Straight wall constant wetted length slideway type round bilge speed boat shape - Google Patents
Straight wall constant wetted length slideway type round bilge speed boat shape Download PDFInfo
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- CN103612707A CN103612707A CN201310589329.1A CN201310589329A CN103612707A CN 103612707 A CN103612707 A CN 103612707A CN 201310589329 A CN201310589329 A CN 201310589329A CN 103612707 A CN103612707 A CN 103612707A
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Abstract
The invention discloses a straight wall constant wetted length slideway type round bilge speed boat shape which is characterized in that a boat body comprises two straight wall constant wetted length round bilge lateral bodies in left-right symmetry, slideway tops and slideways, the straight wall constant wetted length round bilge lateral bodies are formed by straight wall contour lines, slideway contour lines, stern cross section lines, stern bottom oblique ascensions, midship cross section lines and midship bottom oblique ascensions. The straight wall constant wetted length slideway type round bilge speed boat shape has the advantages that the wetted length is constant, during sailing, waves and flying foams on the outer side of the boat body are reduced greatly, the waves, flying foams and air flows on the inner side of the boat body flow through the slideways and flow out towards the rear of the boat at high speed, parts of the energy of the waves and flying foams on the inner side of the boat body are recycled by the slideways (equals to wave and foam elimination) and converted into the dynamic lifting force of the boat body along with the air flows, the operability, navigability and seakeeping performance of the boat shape are increased greatly, and the boat shape is applicable to sea conditions 1-2 levels higher than those which traditional speed boats are applicable to. In addition, due to the fact that the wetted length of the boat shape is constant, the performance of the boat shape can be favorably and theoretically analyzed and researched by using length Froude number.
Description
Technical field
The present invention relates to a kind of speedboat ship type, relate in particular to a kind of be applicable to your moral number of length Fu be greater than 0.5～1.3 and can under higher sea situation, normally navigate by water military, civilian binary speedboat, belong to boats and ships ship type technical field.
Background technology
Slack bulge speedboat has larger wave making resistance and less spittle resistance when transition condition navigates by water, these two kinds of resistances and account for the more than 50% of total drag, along with the increase wave making resistance proportion of the speed of a ship or plane reduces and spittle resistance proportion increases, proportion these two kinds of resistances and that account for total drag continues to increase, even surpass the more than 70% of total drag, and wave making and the spittle are the speedboat intrinsic physical phenomenons in when navigation, be difficult to avoid.Current binary speedboat, for resistance, almost do not improve, just make hull point-supported compared with steady steaming state in two, for binary speedboat, though have the wave making of nearly half and the water channel of the spittle between binary, flow through, but due to larger apart from water surface distance at the bottom of connecting bridge, so do not have the effect of reclaiming wave making energy and spittle energy.Ship type is one of most important factor determining hull performance, a kind of speedboat when navigation with less wave making and spittle resistance of design invention, thus in other words the speedboat of design can recovery section wave making when navigation and the energy of the spittle reach and reduce resistance, improve the speed of a ship or plane, save the energy and just seem very necessary.
Traditional binary slack bulge speedboat is when low speed hull-borne is navigated by water, because speedboat length and width are smaller, therefore have larger wave making resistance than binary displacement ship, simultaneously because traditional binary slack bulge speedboat its wetted length when taking off will obviously reduce, now have an obvious wave making resistance peak, wave making resistance is larger; Traditional binary slack bulge speedboat is when sliding state navigates by water, because length of flooding significantly reduces, the longitudinal movement stability of speedboat is reduced greatly, rough water quality variation, even under slightly high sea situation, just can not normally navigate by water, thereby limit the usage condition scope of traditional binary slack bulge speedboat.Different from conventional displacement ship is, speedboat is as a kind of moving type ship that rises, and when navigation, its boat state can change along with the variation of the speed of a ship or plane, be mainly the variation of hull wetted length and hull drinking water and hull casterangle, this has brought inconvenience for analyzing its performance with your moral number of length Fu.Therefore, the constant binary slack bulge speedboat ship type of invention design hull wetted length, to improve the various deficiencies of above-mentioned traditional binary slack bulge speedboat, make to allow when improving and having optimized the every navigation performance of binary slack bulge speedboat the performance of analyzing binary slack bulge speedboat by your moral number (Fr) of length Fu also become more convenient.(your moral number of length Fu---Fr=V/ √ gl,---ship speed (m/s), g---acceleration due to gravity (m/s in formula: V
2), L---boats and ships length on water line (m))
Summary of the invention
The object of the present invention is to provide the surely wet long chute type slack bulge speedboat ship type of a kind of straight wall, its ship type is comprised of the surely wet oval bilge lateral body of symmetrical two straight walls, slideway top and slideway.
Object of the present invention is achieved by the following technical programs:
The surely wet long chute type slack bulge speedboat ship type of straight wall, its hull is comprised of the surely wet oval bilge lateral body 21 of symmetrical two straight walls, slideway top 22 and slideway 42; The surely wet oval bilge lateral body 21 of described straight wall is comprised of slack bulge curved surface 212 inside the straight wall 211 in hull outside and hull; The straight wall 211 in hull outside is by upper border line 16, straight wall outline line 13 combination producings; Inside described hull slack bulge curved surface 212 by straight wall outline line 13, slideway outline line 15 and slideway outline line casterangle α, the cross-sectional upper thread 311 of stern and stern at the bottom of ramping angle β
1, ramping angle β at the bottom of the cross-sectional upper thread 321 of midship and midship
2combination producing; Described slideway top 22 is by slideway outline line 15, stern chute top line 312, midship slideway top line 322 and bow slideway top line 332 combination producings; Described slideway 42 is surrounded by slack bulge curved surface 212,22, slideway top inside hull; Described straight wall outline line 13 is to be connected and to be formed by bow lower prop line 131, the vertical bottom line 132 of bow, vertical bottom line 133 orders of stern; Described bow lower prop line 131 is to take an o as the center of circle, the length L of hull design load water line 12 is the circular arc K10K11 that radius R is done, the described some stern end points that o is hull design load water line 12, point K10 is below hull design load water line 12, distance a=L/ (9～11) apart from hull design load water line 12, point K11 is above hull design load water line 12, apart from distance b=(0.2～0.5) a of hull design load water line 12; The vertical bottom line 132 of described bow was horizontal linear section K9K10 that some K10 points to ship stern, its length c=L/ (15～25); The vertical bottom line 133 of described stern is plane SPLs of the fairing that is formed by connecting by a K1, K5, K9, and described some K1, below an o, is stern end points, its distance h to hull design load water line 12 of the vertical bottom line 133 of stern
2=(0.1～0.5) a, described some K5 be the vertical bottom line 133 of stern midship point, to the horizontal fore-and-aft distance of some K1, equal 0.5L, some K5 below hull design load water line 12, arrive the distance h of hull design load water line 12
3=(0.5～1) a; Point K1, K5, K9, K10, K11 are apart from the transverse distance B=L/ (8～16) of hull line of centers 51; Described slideway outline line 15 be linked in sequence K3, K7, K12 and the space SPL of fairing, described some K3, K7, K12 are respectively stern end points, midship and the bow end points of slideway outline line 15, the K3K7 section of described slideway outline line 15 is straight line.
Object of the present invention can also further realize by following technical measures.
The surely wet long chute type slack bulge speedboat ship type of aforesaid straight wall, the straight wall (211) in wherein said hull outside is the vertical plane surface parallel with hull line of centers 51.
The surely wet long chute type slack bulge speedboat ship type of aforesaid straight wall, wherein said some K7 below hull design load water line 12, its height h=(0.1～0.5) a to hull design load water line 12, arrive hull line of centers 51 horizontal cross apart from f
1=L/ (4～8); Described some K3 below hull design load water line 12, its height h to hull design load water line 12
1=h+0.5Ltan α, to the horizontal cross of hull line of centers 51 apart from f=(0.9～1.1) f
1; Described some K12 above hull design load water line 12, its height d=(1.5～3.5) b to hull design load water line (12), to the horizontal cross of hull line of centers 51 apart from g=(0.7～0.9) B, to the vertical equity distance c of some K11
1=(0.5～1.5) b.
The surely wet long chute type slack bulge speedboat ship type of aforesaid straight wall, wherein said slideway outline line casterangle α is the straight line of point of connection K3, K7 and the angle of horizontal surface, α on horizontal surface for just, its span α=0 °～4 °.
The surely wet long chute type slack bulge speedboat ship type of aforesaid straight wall, ramping angle β at the bottom of wherein said stern
1be the cross-sectional upper thread of stern at the tangent line of a K1 and the angle of horizontal surface, on horizontal surface for just, its span: 25 °≤β
1≤ 35 °.Ramping angle β at the bottom of described midship
2be the cross-sectional upper thread of midship at the tangent line of K5 and the angle of horizontal surface, on horizontal surface for just, span: β
1≤ β
2≤ 50 °.
The invention has the beneficial effects as follows:
1. the present invention is when transition condition and sliding state navigation, outside hull, wave making and the spittle significantly reduce, the current of most of wave making and the spittle large quantity of air of accompanying flows out at a high speed from flowing through and be accelerated from slideway stern in slideway, now the energy of part wave making and the spittle is dynamic lift to hull in slideway internal conversion by slideway recovery (be equivalent to wave absorption and subtract foam) together with air draught, wave making and spittle resistance have been reduced, improved the speed of a ship or plane, the higher drag-reduction effect of route speed is better, hull has increased stability and the navigability of hull state of kinematic motion in three fulcrum sliding states simultaneously.
2. at same designed waterline length and in displacement situation, when hull-borne and transition condition navigation, wave making resistance of the present invention is less than traditional binary slack bulge speedboat; The present invention's wetted length when taking off is invariable, thereby its wave making and spittle resistance ratios tradition binary slack bulge speedboat that takes off is little; Because the present invention's its wetted length when sliding state navigates by water is invariable, hydrodynamic pressure center is remained unchanged substantially, compare with traditional binary slack bulge speedboat, the present invention has better longitudinal movement stability, its road-holding property, navigability and the more traditional binary slack bulge of rough water quality performance speedboat are improved a lot, under higher sea situation, still can normally navigate by water, expand the usage condition scope of binary slack bulge speedboat.
3. the present invention's drag reduction 3～5%, drag reduction 3～7% when drag reduction 3～7%, low speed slide while taking off when transition condition navigates by water, navigability and rough water quality can improve (1～2) level sea situation simultaneously, in addition, because wetted length of the present invention remains constant, will more be conducive to people and utilize your moral number of length Fu its performance of analytical investigation theoretically.
Advantage and disadvantage of the present invention, the non-limitative illustration by preferred embodiment below is for illustration and explanation, and these embodiment, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is lateral plan of the present invention, and left end is ship stern, and right-hand member is ship bow;
Fig. 2 is birds-eye view of the present invention, due to symmetry, is illustrated as hull starboard part;
Fig. 3 is drawing in side sectional elevation of the present invention, and due to symmetry, A-A section (stern bench section) is shown in the left side of hull line of centers 51; B-B section (midship bench section) is shown in the right of hull line of centers 51.
Fig. 4 is drawing in side sectional elevation of the present invention, and due to symmetry, C-C section (bow bench section) is shown in the right of ship hull line of centers 51.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention and method of designing are described further.
In Fig. 1, take an o as initial point, its length that draws a level to ship bow direction equals the line segment ox of hull designed waterline length L, and line segment ox is described hull design load water line 12.
In Fig. 1, take an o as the center of circle, the length L of hull design load water line 12 is that radius R is made circular arc K10K11, obtain bow lower prop line 131, circular arc lower extreme point K10 is below hull design load water line 12, distance a=L/(9～11 apart from hull design load water line 12), circular arc upper extreme point K11 is above hull design load water line 12, apart from distance b=(0.2～0.5) a of hull design load water line; Cross some K10 and draw horizontal linear to ship stern direction, get a K9 on straight line, line segment K9K10 is the vertical bottom line 132 of bow, its length c=L/(15～25); Under the cross-sectional millet cake o of stern, get a K1, it is to the distance h of hull design load water line 12
2=(0.1～0.5) a; Below midship bench section and design load water line 12, get a K5, it is to the distance h of hull design load water line 12
3=(0.5～1) a; Described some K1 is the stern end points of the vertical bottom line 133 of stern, and described some K5 is the midship point of the vertical bottom line 133 of stern; Described some K5 equals 0.5L to the horizontal fore-and-aft distance of putting K1; Point of connection K1, K5, K9 make into the SPL of fairing, obtain the vertical bottom line 133 of stern; The be linked in sequence vertical bottom line 132 of bow lower prop line 131, bow, the vertical bottom line 133 of stern obtain straight wall outline line 13.In Fig. 2, described some K1, K5, K9, K10, K11 equal B apart from the distance of hull line of centers 51, B=L/ (8～16).
In Fig. 1, below hull design load water line 12 and some K6 vertical direction get a K7, described some K7 be to height h=(0.1～0.5) a of hull design load water line 12, below hull design load water line 12 and the vertical direction of some K1 get a K3, described some K3 is to the height h of hull design load water line 12
1=h+0.5Ltan α, described slideway outline line casterangle α is the straight line of point of connection K3, K7 and the angle of horizontal surface, α on horizontal surface for just, its span α=0 °～4 °, on stem line 17, get a K12, it is to height d=(1.5～3.5) b of hull design load water line 12, to the vertical equity distance c of some K11
1=(0.5～1.5) b; In Fig. 2, described some K3 is to distance f=(0.9～1.1) f of hull line of centers 51
1; Described some K7 is to the distance f of hull line of centers 51
1=L/ (4～8); Described some K12 is to distance g=(0.7～0.9) B of hull line of centers 51; Be linked in sequence K3, K7, K12 obtain slideway outline line 15, the space SPL that described slideway outline line 15 is fairing, and the K3K7 section of described slideway outline line 15 is straight line; The described some stern end points that K3 is slideway outline line 15, the described some midship point that K7 is slideway outline line 15, the described some bow end points that K12 is slideway outline line 15.
In Fig. 1, Fig. 2, directly over a K1, get a K4, directly over a K5, get a K8, directly over a K12, get a K13, on ship bow direction hull line of centers 51, get a K14, described some K14 is that hull type is long to the vertical equity distance of putting K1, and be linked in sequence a K4, K8, K13, K14 obtain upper border line 16; The K4K8K13 section of described upper border line 16 for the plane curve parallel with hull line of centers 51 and to the distance of hull line of centers 51 equal B, its K13K14 section is space curve; The space SPL that described upper border line 16 is fairing, described some K4, K8, K13, K14 are determined by designer to the height of hull design load water line 12.
Be linked in sequence in Fig. 1, a Fig. 2 K11, K12, K14 obtain bow upper prop line 17, and the position of suitably adjusting some K12 makes itself and upper border line 16 have good transition relation;
In Fig. 3, ramping angle β at the bottom of described stern
1be the cross-sectional upper thread of stern at the tangent line of a K1 and the angle of horizontal surface, on horizontal surface for just, its span: 25 °≤β
1≤ 35 °.
In Fig. 3, ramping angle β at the bottom of described midship
2that the cross-sectional upper thread of midship is at K
5tangent line and the angle of horizontal surface, on horizontal surface for just, span: β
1≤ β
2≤ 50 °.
In Fig. 4, described bow slideway top line 332 is curves that point of connection K12, K12 form.
For guaranteeing the three-dimensional light compliance on described hull inner curve 212 and described slideway top 22, must increase some cross-sectional upper threads, buttock line, waterline upper thread, its number needs by design and determines.Adjust each lines fairness and harmony, make the hull inner curve 212 of generation and the three-dimensional light compliance on slideway top 22 reach satisfied state, will guarantee that hull displacement and the position, centre of buoyancy under hull design load water line 12 meets design requirement simultaneously.
Shown in Fig. 1～Fig. 4, be space curve, the plane curve of the surely wet long chute type slack bulge speedboat ship type of straight wall, shape and quantity and the operating angle of body lines, only as non-limitative illustration, provide.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (6)
1. the surely wet long chute type slack bulge speedboat ship type of straight wall, its hull by the surely wet oval bilge lateral body (21) of symmetrical two straight walls, slideway pushes up (22) and slideway (42) forms; The surely wet oval bilge lateral body (21) of described straight wall is comprised of slack bulge curved surface (212) inside the straight wall 211 in hull outside and hull; The straight wall (211) in hull outside is by upper border line (16), straight wall outline line (13) combination producing; Inside described hull slack bulge curved surface (212) by straight wall outline line (13), slideway outline line (15) and slideway outline line casterangle α, the cross-sectional upper thread of stern (311) and stern at the bottom of ramping angle β
1, ramping angle β at the bottom of the cross-sectional upper thread of midship (321) and midship
2combination producing; Described slideway top (22) is by slideway outline line (15), stern chute top line (312), midship slideway top line (322) and bow slideway top line (332) combination producing; Described slideway (42) is surrounded by slack bulge curved surface (212), slideway top (22) inside hull; Described straight wall outline line (13) is to be connected and to be formed by bow lower prop line (131), the vertical bottom line (132) of bow, vertical bottom line (133) order of stern; It is characterized in that, described bow lower prop line (131) is to take an o as the center of circle, the length L of hull design load water line (12) is the circular arc K10K11 that radius R is done, described some o is the stern end points of hull design load water line (12), point K10 is in the below of hull design load water line (12), apart from the distance a=L/ (9～11) of hull design load water line (12), some K11 is in the top of hull design load water line (12), apart from distance b=(0.2～0.5) a of hull design load water line (12); It was the horizontal linear section K9K10 that some K10 points to ship stern that described bow is indulged bottom line (132), its length c=L/ (15～25); Described stern is indulged the plane SPL that bottom line (133) is the fairing that is formed by connecting by a K1, K5, K9, and described some K1, below an o, is stern end points, its distance h to hull design load water line (12) of the vertical bottom line (133) of stern
2=(0.1～0.5) a, described some K5 be the vertical bottom line (133) of stern midship point, to the horizontal fore-and-aft distance of some K1, equal 0.5L, some K5 in hull design load water line (12) below, arrive the distance h of hull design load water line (12)
3=(0.5～1) a; Point K1, K5, K9, K10, K11 are apart from the transverse distance B=L/ (8～16) of hull line of centers (51); Described slideway outline line (15) be linked in sequence K3, K7, K12 and the space SPL of fairing, described some K3, K7, K12 are respectively stern end points, midship and the bow end points of slideway outline line (15), and the K3K7 section of described slideway outline line (15) is straight line.
2. the surely wet long chute type slack bulge speedboat ship type of straight wall according to claim 1, is characterized in that, the straight wall (211) in described hull outside is the vertical plane surface parallel with hull line of centers (51).
3. the surely wet long chute type slack bulge speedboat ship type of straight wall according to claim 1, it is characterized in that, described some K7 in the below of hull design load water line (12), its height h=(0.1～0.5) a to hull design load water line (12), to the horizontal cross of hull line of centers (51) apart from f
1=L/ (4～8); Described some K3 is at below, its height h to hull design load water line (12) of hull design load water line (12)
1=h+0.5Ltan α, to the horizontal cross of hull line of centers (51) apart from f=(0.9～1.1) f
1; Described some K12 in the top of hull design load water line (12), its height d=(1.5～3.5) b to hull design load water line (12), to the horizontal cross of hull line of centers (51) apart from g=(0.7～0.9) B, to the vertical equity distance c of some K11
1=(0.5～1.5) b.
4. the surely wet long chute type slack bulge speedboat ship type of straight wall according to claim 1, is characterized in that, described slideway outline line casterangle α is the straight line of point of connection K3, K7 and the angle of horizontal surface, α on horizontal surface for just, its span α=0 °～4 °.
5. the surely wet long chute type slack bulge speedboat ship type of straight wall according to claim 1, is characterized in that ramping angle β at the bottom of described stern
1be the cross-sectional upper thread of stern at the tangent line of a K1 and the angle of horizontal surface, on horizontal surface for just, its span: 25 °≤β
1≤ 35 °.
6. the surely wet long chute type slack bulge speedboat ship type of straight wall according to claim 1, is characterized in that ramping angle β at the bottom of described midship
2be the cross-sectional upper thread of midship at the tangent line of K5 and the angle of horizontal surface, on horizontal surface for just, span: β
1≤ β
2≤ 50 °.
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| CN201310589329.1A CN103612707B (en) | 2013-11-21 | 2013-11-21 | The surely wet long chute type slack bulge speedboat ship type of straight wall |
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