CN109359354B - Water retaining part design method - Google Patents
Water retaining part design method Download PDFInfo
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- CN109359354B CN109359354B CN201811135473.7A CN201811135473A CN109359354B CN 109359354 B CN109359354 B CN 109359354B CN 201811135473 A CN201811135473 A CN 201811135473A CN 109359354 B CN109359354 B CN 109359354B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention discloses a design method of a water retaining part, which is characterized in that three connecting points are taken on an outer plate in the bow direction, a three-point arc drawing method is utilized to obtain an arc line intersecting with a water retaining coaming, a certain included angle is formed between the water retaining coaming and the outer plate, water splashed in the bow direction can be effectively retained, and the designed water retaining part has the advantages of concise and attractive appearance, small occupied area, simplicity and convenience in manufacturing and production and the like.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a water retaining part design method.
Background
In some ship structures, some exhaust pipes of the main engine directly extend to the side shell plate, as shown in fig. 1, but during the running process of the ship, the exhaust pipes are easy to enter water to affect the use of the main engine, so that the potential safety hazard of damaging the main engine exists, the running efficiency of the ship is affected, and the running cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a water retaining part design method for solving the problem that water easily enters an exhaust hole.
In order to solve the technical problem, the invention provides a water blocking part design method, which comprises the following steps:
s1, obtaining model data of an exhaust hole of a ship outer plate, and creating a horizontal line and a vertical line through the center of the exhaust hole, wherein the horizontal line and the vertical line are arranged vertically;
s2, the upper end of the vertical line rotates around the circle center to the ship bow direction by an offset angle to create a first ray, and the lower end of the vertical line rotates around the circle center to the ship bow direction by an offset angle to create a second ray;
s3, taking a first connecting point along the horizontal line in the bow direction of the ship on the outer plate, taking a second connecting point along the first ray and taking a third connecting point along the second ray, and creating an arc line by drawing the first connecting point, the second connecting point and the third connecting point according to a three-point arc;
s4, creating a water retaining coaming, wherein the water retaining coaming and the outer plate are intersected on the circular arc line, and on any section which passes through the circle center and is perpendicular to the outer plate, included angles between the water retaining coaming and the outer plate are set to be consistent;
and S5, outputting model data of the water retaining part.
Preferably, in step S2, the offset angle is set to 15 degrees.
Preferably, in step S3, a shortest distance value from the first connection point to a boundary line of the exhaust hole is 1/11 to 1/9 diameter value of the exhaust hole, and shortest distance values from the second connection point and the third connection point to the boundary line of the exhaust hole are 1/25 to 1/20 diameter value of the exhaust hole, respectively.
Preferably, in step S4, an included angle between the water blocking coaming and the outer plate is set to be 45 degrees.
Preferably, the step S4 further includes creating an inner sealing plate, wherein one side end of the inner sealing plate intersects and is connected to the outer plate, the other side end of the inner sealing plate intersects and is connected to a side line of the exhaust hole, and the inner sealing plate is located between the first ray and the second ray.
Preferably, in step S4, on an arbitrary cross section passing through the circle center and perpendicular to the outer plate, an included angle between the inner sealing plate and the outer plate is 90 degrees.
Preferably, in the step S4, a triangular side sealing plate is further created, where the number of the side sealing plates is two, one of the side sealing plates is connected between the water-retaining shroud and the inner sealing plate along the first radial line, and the other side sealing plate is connected between the water-retaining shroud and the inner sealing plate along the second radial line.
Compared with the prior art, the water blocking part design method provided by the embodiment of the invention has the beneficial effects that: according to the invention, three connecting points are taken from the outer plate in the bow direction, the arc line intersected with the water retaining coaming is obtained by using a three-point arc mapping method, a certain included angle is formed between the water retaining coaming and the outer plate, so that water splashed in the bow direction can be effectively blocked, the designed water retaining part has the advantages of simple and attractive appearance, small occupied area, simplicity and convenience in manufacturing and production and the like, and the design method can be used for quickly designing the water retaining part of the exhaust hole meeting the requirements, so that the drawing design is convenient for drawing personnel, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the position of vent holes in a ship in the prior art.
Fig. 2 is a schematic view showing a water guard structure using the water guard designing method according to the preferred embodiment of the present invention.
Fig. 3 isbase:Sub>A schematic structural view in the direction ofbase:Sub>A-base:Sub>A in fig. 2.
Fig. 4 is an enlarged schematic view of the structure at B in fig. 3.
Fig. 5 is a side view of the structure of fig. 2.
In the figure: 1. an outer plate; 2. an exhaust hole; 3. a horizontal line; 4. a vertical line; 5. a first ray; 6. a second ray; 7. a first connection point; 8. a second connection point; 9. a third connection point; 10. a circular arc line; 11. a water retaining coaming plate; 12. an inner closing plate; 13. a side sealing plate; 14. and (7) welding seams.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 2 to 5, a preferred embodiment of the present invention provides a water guard member designing method, including the steps of:
s1, obtaining model data of an exhaust hole 2 of a ship outer plate 1, and creating a horizontal line 3 and a vertical line 4 through the center of the exhaust hole 2, wherein the horizontal line 3 and the vertical line 4 are arranged vertically;
s2, rotating the upper end of the vertical line 4 around the circle center by an offset angle alpha to create a first ray 5, and rotating the lower end of the vertical line 4 around the circle center by an offset angle alpha to create a second ray 6;
s3, taking a first connecting point 7 along the horizontal line 3 in the bow direction, a second connecting point 8 along the first ray 5 and a third connecting point 9 along the second ray 6 on the outer plate 1, and creating an arc line 10 by drawing the first connecting point 7, the second connecting point 8 and the third connecting point 9 according to a three-point arc;
s4, creating a water retaining coaming 11, wherein the water retaining coaming 11 and the outer plate 1 are intersected on the arc line 10, and on any section which passes through the circle center and is perpendicular to the outer plate 1, included angles between the water retaining coaming 11 and the outer plate 1 are consistent;
and S5, outputting model data of the water retaining part.
According to the water retaining part design method based on the technical characteristics, as shown in figure 2, three connecting points are taken from the outer plate 1 in the ship bow direction, an arc line 10 intersecting with the water retaining coaming 11 is obtained by a three-point arc mapping method, a certain included angle is formed between the water retaining coaming 11 and the outer plate 1, water splashed in the ship bow direction can be effectively blocked, and the designed water retaining part has the advantages of being simple and attractive in appearance, small in occupied area, simple and convenient to manufacture and produce and the like.
Further, in the step S2, the offset angle α is preferably set to 15 degrees, which is beneficial to saving materials used in the production process and does not affect the normal function of the water baffle 11.
Further, in the step S3, a shortest distance value H from the first connection point 7 to a side line of the exhaust hole 2 is a 1/11-1/9 diameter value of the exhaust hole 2, a shortest distance value H from the second connection point 8 and the third connection point 9 to the side line of the exhaust hole 2 respectively is a 1/25-1/20 diameter value of the exhaust hole 2, a distance between the first connection point 7 and a circle center is longer than a distance between the second connection point 8 or a distance between the third connection point 9 and the circle center, which is beneficial to the generated water blocking enclosure plate 11 to be raised in the middle and then gradually descend in transition from top to bottom, as shown in fig. 5, the water blocking enclosure plate is matched with the shape of the exhaust hole 2, the width of the exhaust hole 2 in the horizontal direction is gradually reduced from the middle to top and bottom, so that the middle of the exhaust hole 2 in the horizontal direction needs a higher blocking height, and the created water blocking enclosure plate 11 has a more aesthetic appearance.
Further, in the step S4, an included angle β between the water baffle plate 11 and the outer plate 1 is preferably set to 45 degrees, and the included angle β can ensure that splashed water is blocked outside.
Further, in the step S4, an inner sealing plate 12 is further created, wherein one side end of the inner sealing plate 12 is connected to the outer plate 1 in an intersecting manner, the other side end of the inner sealing plate 12 is connected to a side line of the exhaust hole 2 in an intersecting manner, and the inner sealing plate 12 is located between the first ray 5 and the second ray 6, so as to support the water-retaining wall plate 11, so that the water-retaining part is more stable after being manufactured; in this embodiment, as shown in fig. 3 and 4, the water-retaining coaming 11 and the inner sealing plate 12 may be connected by welding, and grooves are provided on the side edges of the water-retaining coaming 11 and the inner sealing plate to form a welding seam 14 for welding.
Further, in the step S4, on any section passing through the circle center and perpendicular to the outer plate 1, an included angle between the inner sealing plate 12 and the outer plate 1 is 90 degrees, and the water blocking part is completely arranged on the periphery of the exhaust hole 2, so as to avoid blocking the normal exhaust of the exhaust hole 2.
Further, in the step S4, a triangular side sealing plate 13 is further created, as shown in fig. 5, the number of the side sealing plates 13 is two, wherein one of the side sealing plates 13 is connected between the water-retaining wall plate 11 and the inner sealing plate 12 along the first ray 5, and the other side sealing plate 13 is connected between the water-retaining wall plate 11 and the inner sealing plate 12 along the second ray 6, so that water accumulation in a cavity formed by the water-retaining wall plate 11 and the inner sealing plate 12 is avoided, and the seawater is corrosive, and if the seawater is accumulated in the cavity, the water-retaining part is easily damaged.
In conclusion, according to the design method of the water retaining part, the designed water retaining part can effectively block water splashes coming from the ship bow direction, and the design method has the advantages of being concise and attractive in appearance, small in occupied area, simple and convenient to manufacture and produce and the like.
The above is a detailed description of an embodiment of a method for designing a water stop according to an embodiment of the present invention, and the following is a detailed description of an embodiment of a device for designing a water stop according to an embodiment of the present invention.
The embodiment of the invention provides a water retaining part design device, which comprises:
the device comprises a horizontal line and vertical line acquisition module, a data acquisition module and a data acquisition module, wherein the horizontal line and vertical line acquisition module is used for acquiring model data of an exhaust hole 2 of a ship outer plate 1, a horizontal line 3 and a vertical line 4 are created through the center of a circle of the exhaust hole 2, and the horizontal line 3 and the vertical line 4 are arranged vertically;
the ray acquisition module is used for creating a first ray 5 by rotating the upper end of the vertical line 4 around the circle center by an offset angle alpha in the bow direction, and creating a second ray 6 by rotating the lower end of the vertical line 4 around the circle center by an offset angle alpha in the bow direction;
an arc line obtaining module, configured to take a first connection point 7 along the horizontal line 3 in a bow direction, a second connection point 8 along the first ray 5, and a third connection point 9 along the second ray 6 on the outer panel 1, and create an arc line 10 by drawing the first connection point 7, the second connection point 8, and the third connection point 9 according to a three-point arc;
the water retaining coaming creating module is used for creating a water retaining coaming 11, the water retaining coaming 11 and the outer plate 1 are intersected on the arc line 10, and on any section which passes through the circle center and is perpendicular to the outer plate 1, included angles between the water retaining coaming 11 and the outer plate 1 are consistent;
and the output module is used for outputting the model data of the water retaining part.
Further, the ray acquisition module further comprises an angle determination unit, configured to set the offset angle α to 15 degrees.
Further, the arc line obtaining module further includes a distance processing unit, configured to process that a shortest distance value H from the first connection point 7 to a side line of the exhaust hole 2 is a 1/11-1/9 diameter value of the exhaust hole 2, and shortest distance values H from the second connection point 8 and the third connection point 9 to the side line of the exhaust hole 2 are 1/25-1/20 diameter values of the exhaust hole 2, respectively.
Further, the water blocking coaming creating module further comprises an included angle determining unit, which is used for setting an included angle β between the water blocking coaming 11 and the outer plate 1 to be 45 degrees.
Further, the water baffle coaming creating module further comprises an inner sealing plate creating unit, which is used for creating an inner sealing plate 12, wherein one side end of the inner sealing plate 12 is connected with the outer plate 1 in an intersecting manner, the other side end of the inner sealing plate 12 is connected with the side line of the exhaust hole 2 in an intersecting manner, and the inner sealing plate 12 is located between the first ray 5 and the second ray 6.
Further, the included angle determining unit is further configured to determine an included angle between the inner sealing plate 12 and the outer plate 1, which is 90 degrees, on any section passing through the circle center and perpendicular to the outer plate 1.
Further, the water baffle coaming creating module further comprises a side sealing plate creating unit, which is used for creating triangular side sealing plates 13, wherein the number of the side sealing plates 13 is two, one of the side sealing plates 13 is connected between the water baffle coaming 11 and the inner sealing plate 12 along the first ray 5, and the other side sealing plate 13 is connected between the water baffle coaming 11 and the inner sealing plate 12 along the second ray 6.
It is clear to those skilled in the art that, for a more convenient and concise description, the specific working processes of the devices, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A design method of a water blocking part is characterized by comprising the following steps:
s1, obtaining model data of an exhaust hole of a ship outer plate, and creating a horizontal line and a vertical line through the circle center of the exhaust hole, wherein the horizontal line and the vertical line are arranged vertically;
s2, the upper end of the vertical line rotates around the circle center to the ship bow direction by an offset angle to create a first ray, and the lower end of the vertical line rotates around the circle center to the ship bow direction by an offset angle to create a second ray;
s3, taking a first connecting point along the horizontal line in the bow direction of the ship on the outer plate, taking a second connecting point along the first ray and taking a third connecting point along the second ray, and creating an arc line by drawing the first connecting point, the second connecting point and the third connecting point according to a three-point arc;
s4, creating a water retaining coaming, wherein the water retaining coaming and the outer plate are intersected on the circular arc line, and on any section which passes through the circle center and is perpendicular to the outer plate, included angles between the water retaining coaming and the outer plate are set to be consistent; creating an inner sealing plate, wherein one side end of the inner sealing plate is connected with the outer plate in an intersecting manner, the other side end of the inner sealing plate is connected with the side line of the exhaust hole in an intersecting manner, and the inner sealing plate is arranged between the first ray and the second ray; creating triangular side sealing plates, wherein the number of the side sealing plates is two, one of the side sealing plates is connected between the water retaining coaming and the inner sealing plate along the first ray, and the other side sealing plate is connected between the water retaining coaming and the inner sealing plate along the second ray;
and S5, outputting model data of the water retaining part.
2. The water guard design method of claim 1, wherein in step S2, the offset angle is set to 15 degrees.
3. The method for designing water-blocking component according to claim 1, wherein in step S3, the shortest distance from the first connection point to the boundary line of the exhaust hole is 1/11-1/9 diameter of the exhaust hole, and the shortest distance from the second connection point and the third connection point to the boundary line of the exhaust hole is 1/25-1/20 diameter of the exhaust hole.
4. The method for designing the water deflector according to claim 1, wherein in the step S4, an included angle between the water deflector and the outer plate is set to be 45 degrees.
5. The method for designing a water guard according to claim 1, wherein in step S4, on any section passing through the center of the circle and perpendicular to the outer plate, an included angle between the inner sealing plate and the outer plate is 90 degrees.
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| CN201811135473.7A CN109359354B (en) | 2018-09-28 | 2018-09-28 | Water retaining part design method |
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| CN201811135473.7A CN109359354B (en) | 2018-09-28 | 2018-09-28 | Water retaining part design method |
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| CN109359354B true CN109359354B (en) | 2022-12-30 |
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| JP6586820B2 (en) * | 2015-08-24 | 2019-10-09 | 横浜ゴム株式会社 | Tire mold shape design method, tire mold shape design apparatus, and program |
| CN206095707U (en) * | 2016-10-08 | 2017-04-12 | 浙江水利水电学院 | Multiple spot position, layering water sample collection system |
| CN106844839B (en) * | 2016-12-14 | 2020-01-31 | 中国长江动力集团有限公司 | Method for optimizing the profile of a steam turbine blade |
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Application publication date: 20190219 Assignee: GUANGZHOU WENCHUAN HEAVY INDUSTRY Co.,Ltd. Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Contract record no.: X2023980037443 Denomination of invention: A Design Method for Water Retaining Components Granted publication date: 20221230 License type: Common License Record date: 20230704 |
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