CN112319722A - Ship anchor platform structure design method adopting steel plates for splicing - Google Patents
Ship anchor platform structure design method adopting steel plates for splicing Download PDFInfo
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- CN112319722A CN112319722A CN202011020825.1A CN202011020825A CN112319722A CN 112319722 A CN112319722 A CN 112319722A CN 202011020825 A CN202011020825 A CN 202011020825A CN 112319722 A CN112319722 A CN 112319722A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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Abstract
The invention discloses a ship anchor platform structure design method adopting steel plates for splicing, which comprises the steps of (1) establishing an initial model structure of an anchor platform, determining the basic size of an anchor platform panel and optimizing an included angle between a side plate and the anchor platform panel in the step (2), obtaining the inclined angles of a left inclined edge and a right inclined edge of the anchor platform panel through a first wave impact simulation test in the determination of the basic size of the anchor platform panel in the step (2), and obtaining the included angles between the left side plate, the right side plate, the left inclined side plate, the right inclined side plate and a lower side plate of the anchor platform and the anchor platform panel through a second wave impact simulation test in the optimization of the included angle between the side plate and the anchor platform panel in the step (3). The invention realizes the optimization of the anchor platform structure by establishing the impact energy evaluation formula, thereby not only facilitating the manufacture of the anchor platform, but also reducing the impact force of sea waves to the maximum extent.
Description
Technical Field
The invention relates to the technical field of ship design, in particular to a ship anchor platform structure design method adopting steel plates for splicing.
Background
The ship anchor block is a boss which is arranged on the ship outer plate and used for accommodating or fixing an anchor. Typically, anchor block holes are provided in the face plate of the anchor block for passage of the chain lines connecting the anchors. When the anchor is thrown, make the anchor sink in the bottom through emitting the chain rope, make the anchor can accomodate or fix on the anchor block through rolling up chain rope during the receipts anchor.
The 40000 ton self-unloading ship design relates to the arrangement and the structural design of an anchor platform on an outer plate of a ship. Since the vessel needs to frequently moor the mooring rope at a plurality of ports and wharfs, if the anchor recess type is adopted, the anchor flukes protrude out of the anchor recesses, and the mooring rope can rub against the anchor flukes. Therefore, the anchor platform structure is changed to avoid the cable from being damaged by friction with the anchor fluke in the process of mooring. In addition, the manufacturing is convenient, and the anchor platform adopts a steel plate splicing structure. Since severe sea conditions may occur in the navigation area of the vessel, the lower portion of the anchor platform needs to be optimized to minimize wave attack.
Disclosure of Invention
In order to solve the problems, the invention provides a ship anchor platform structure design method adopting steel plates for splicing, which aims to facilitate the manufacture of the anchor platform and simultaneously reduce the impact force of sea waves on the anchor platform to the maximum extent. The specific technical scheme is as follows:
a ship anchor platform structure design method adopting steel plate splicing comprises the following steps:
(1) establishing an initial model structure of an anchor platform: the initial model structure of the anchor platform comprises an anchor platform panel and a plurality of side plates connected to the periphery of the anchor platform panel; the anchor platform panel is a rectangular anchor platform panel, and the left right corner and the right corner below the anchor platform panel are respectively provided with a bevel edge formed by a chamfer, so that five side edges are formed on the periphery of the anchor platform panel, and a left-right symmetrical structure in the shape of the anchor platform panel is formed; the five side edges are an upper side edge, a left side edge, a right side edge, a left bevel edge, a right bevel edge and a lower side edge, and the plurality of side plates are the upper side plate connected with the upper side edge, the left side plate connected with the left side edge, the right side plate connected with the right side edge, the left bevel side plate connected with the left bevel edge, the right bevel side plate connected with the right bevel edge and the lower side plate connected with the lower side edge; the included angle between the upper side edge and the anchor platform panel is 90 degrees, and the included angles between the left side plate, the right side plate, the left oblique side plate, the right oblique side plate and the lower side plate and the anchor platform panel are respectively more than or equal to 90 degrees;
(2) determining the basic size of the anchor platform panel: determining the width and height of the anchor platform panel according to the tonnage of the ship and the size of the selected anchor, determining the length of the lower side edge of the anchor platform panel and the included angle between the left inclined edge and the right inclined edge; the width of the anchor platform panel is the distance between the left side edge and the right side edge, the height of the anchor platform panel is the distance between the upper side edge and the lower side edge, and the length of the lower side edge is the minimum value in a design allowable range; the inclination angles of the left oblique edge and the right oblique edge are obtained through a first sea wave impact simulation test, the first sea wave impact simulation test is to manufacture a deformable anchor platform model with a variable relative included angle between the left oblique side plate and the right oblique side plate according to a certain proportion under the condition that included angles between the left side plate, the right side plate, the left oblique side plate, the right oblique side plate, the lower side plate and the anchor platform panel are all 90 degrees, the deformable anchor platform model is placed in a sea wave simulation device to obtain an initial inclined side plate included angle between the left oblique side plate and the right oblique side plate under the condition that the deformable anchor platform model bears the minimum impact energy, and the initial inclined side plate included angle is used as the included angle between the left oblique edge and the right oblique edge of the anchor platform panel;
(3) optimizing the included angle between the side plate and the anchor platform panel: the method comprises the steps of manufacturing a plurality of non-deformable anchor platform models according to a certain proportion, synchronously amplifying included angles between a left side plate, a right side plate, a left oblique side plate, a right oblique side plate and a lower side plate of each non-deformable anchor platform model and an anchor platform panel to different obtuse angles which are not less than 90 degrees on the basis of 90 degrees, placing the non-deformable anchor platform models with different obtuse angles into a sea wave simulation device to carry out a second sea wave impact simulation test to obtain impact energy borne by each non-deformable anchor platform model, and selecting the obtuse angle under the condition that the non-deformable anchor platform model bears the minimum impact energy as the included angle between the left side plate, the right side plate, the left oblique side plate, the right oblique side plate and the lower side plate and the anchor platform panel.
Preferably, the sea wave simulation device comprises a water tank, a sea wave simulation generator arranged on the water tank and a gap bridge arranged above the water tank, wherein a section of cylindrical torsion beam is vertically arranged downwards on the gap bridge, the lower end of the cylindrical torsion beam is provided with a connecting flange, a profiling seat simulating the local shape of a ship outer plate at an anchor platform installation position is also arranged in the water tank, and a profiling surface is arranged on the profiling seat; and a resistance strain gauge for detecting and simulating sea wave impact energy is pasted on the cylindrical torsion beam and is connected with a strain recorder.
When a sea wave impact simulation test is carried out, an anchor platform model is hung and fixed on a connecting flange of the cylindrical torsion beam, and the back surface of the rear side of the anchor platform model is attached to the die backing surface of the die backing seat; the strain recorder dynamically records the change condition of the strain quantity of the simulated sea waves impacting the anchor platform model to form a relation curve y (f) (t) of the strain quantity y and the time t, and an impact energy evaluation formula is established by utilizing the relation curve y (f) (t) of the strain quantity y and the time t
The impact energy evaluation formula is used as the impact energy borne by the anchor platform model within a preset time period of 0-t in the sea wave impact simulation test.
In the invention, the deformable anchor platform model comprises a simulation lower side plate, a simulation left inclined side plate and a simulation right inclined side plate which are respectively connected with two ends of the simulation lower side plate through a hinge shaft in a rotating way, a simulation left side plate which is connected with the upper end of the simulation left inclined side plate through a hinge shaft in a rotating way, and a simulation right side plate which is connected with the upper end of the simulation right inclined side plate through a hinge shaft in a rotating way, wherein a rigid upright post is vertically connected with the left-right symmetrical position of the upper plane of the simulation lower side plate upwards, a sliding sleeve is sleeved outside the rigid upright post, an upper left connecting seat, a lower left connecting seat, an upper right connecting seat and a lower right connecting seat are respectively arranged at the upper position and the lower position of the left side and the right side of the sliding sleeve, a pair of parallel and equal-length left connecting rods are connected among the upper left connecting seat, the lower left connecting seat and the left side plate through, when the sliding sleeve moves up and down, the left connecting rod and the right connecting rod drive the oblique side plate included angle between the left oblique side plate and the right oblique side plate to change, the sliding sleeve is fixed with the rigid stand column through the lateral fixing screws, the top of the rigid stand column is provided with a mounting disc, and the mounting disc is fixed with a connecting flange on the cylindrical torsion beam.
The front side of the area enclosed by the simulation left side plate, the simulation right side plate, the simulation left inclined side plate, the simulation right inclined side plate and the simulation lower side plate is connected with an elastic telescopic rubber plate for simulating the anchor platform panel so as to adapt to the deformation of the deformable anchor platform model.
In the invention, the non-deformable anchor platform is vertically connected with a rigid upright column upwards, the top of the rigid upright column is provided with a mounting disc, and the mounting disc is fixed with a connecting flange on the cylindrical torsion beam.
According to the second sea wave impact simulation test result of each non-deformable anchor platform model, obtaining a discrete data relation between the angle alpha between the simulated left side plate, the simulated right side plate, the simulated left oblique side plate, the simulated right oblique side plate and the simulated lower side plate of the non-deformable anchor platform model and the anchor platform panel and the impact energy H, then performing curve fitting processing on the discrete data relation by adopting a least square method to obtain a functional relation formula H ═ f (alpha) between the impact energy H and the angle alpha, then solving the minimum value of the impact energy H and the angle alpha value when the impact energy H takes the minimum value according to the functional relation formula H ═ f (alpha), and taking the angle alpha value when the impact energy H takes the minimum value as the angle optimization value between the side plate and the anchor platform panel in the step (3).
Preferably, a drainage groove is arranged on the die surface of the die backing seat.
Preferably, the number of the resistance strain gauges is multiple and is uniformly distributed along the circumferential direction of the cylindrical torsion beam, and the maximum strain measured in each resistance strain gauge at the same time point is taken as an actual strain.
In the invention, the center part of the anchor platform panel is provided with an anchor platform hole.
In the invention, after the anchor platform panel and each side plate are designed, the rib plate in the anchor platform is designed.
As an alternative of the sea wave impact simulation test, under the condition of available conditions, the anchor platform model, the die holder, the gap bridge (including the cylindrical torsion beam) and the strain recorder in the sea wave simulation device can be used as separate test components, and the test components are rebuilt on the sea site to perform the sea wave impact simulation test on the anchor platform model, so as to better meet the actual conditions.
The invention has the beneficial effects that:
firstly, according to the design method of the ship anchor platform structure spliced by the steel plates, the anchor platform is made of the steel plate splicing joints, so that the manufacturing is convenient, and the anchor platform adopts two sea wave impact simulation tests in the design stage, so that the shape of the anchor platform is optimized, and the sea wave impact force on the anchor platform is reduced to the maximum extent.
Secondly, according to the ship anchor platform structure design method adopting steel plates for splicing, an impact energy evaluation formula of an anchor platform model impacted by sea waves is established, and the design of the anchor platform structure is guided through the impact energy evaluation formula, so that a good anchor platform structure capable of reducing the sea wave impact energy is formed.
Thirdly, according to the ship anchor platform structure design method adopting steel plates for splicing, different anchor platform models are adopted in two sea wave impact simulation tests, and mutual collaborative optimization is realized.
Drawings
FIG. 1 is a schematic design flow diagram of a ship anchor platform structure design method adopting steel plate splicing according to the invention;
FIG. 2 is a schematic structural diagram of a first wave impact simulation test;
FIG. 3 is a schematic diagram of the configuration of the transformable anchor platform model of FIG. 2;
FIG. 4 is a schematic structural diagram of a second wave impact simulation test;
fig. 5 is a schematic structural diagram of an optimized ship anchor platform spliced by steel plates.
In the figure: 1-1, a deformable anchor platform model, 1-2, an undeformable anchor platform model, 2, a sea wave simulation device, 3, a water tank, 4, a sea wave simulation generator, 5, a gap bridge, 6, a cylindrical torsion beam, 7, a connecting flange, 8, a profiling seat, 9, a profiling surface, 10, a resistance strain gauge, 11, a strain recorder, 12, a simulation lower side plate, 13, a hinge shaft, 14, a simulation left inclined side plate, 15, a simulation right inclined side plate, 16, a simulation left side plate, 17, a simulation right side plate, 18, a rigid upright post, 19, a sliding sleeve, 20, an upper left connecting seat, 21, a lower left connecting seat, 22, an upper right connecting seat, 23, a lower right connecting seat, 24, a left connecting rod, 25, a right connecting rod, 26, a lateral fixing screw, 27, a mounting disc, 28, an elastic telescopic water drain rubber plate, 29 and a groove.
In the figure: 30. anchor block panel, 31, upper side, 32, left side, 33, right side, 34, left oblique side, 35, right oblique side, 36, lower side, 37, upper side panel, 38, left side panel, 39, right side panel, 40, left oblique side panel, 41, right oblique side panel, 42, lower side panel, 43, anchor block hole.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 5 show an embodiment of a method for designing a ship anchor block structure spliced by steel plates according to the present invention, which comprises the following steps:
(1) establishing an initial model structure of an anchor platform: the initial model structure of the anchor platform comprises an anchor platform panel 30 and a plurality of side plates connected to the periphery of the anchor platform panel 30; the anchor platform panel 30 is a rectangular anchor platform panel, and the left and right corners below the anchor platform panel 30 are respectively provided with bevel edges formed by chamfers, so that five side edges are formed on the periphery of the anchor platform panel 30, and a left-right symmetrical structure in the shape of the anchor platform panel 30 is formed; the five side edges are an upper side edge 31, a left side edge 32, a right side edge 33, a left oblique edge 34, a right oblique edge 35 and a lower side edge 36, and the plurality of side plates are an upper side plate 37 connected with the upper side edge 31, a left side plate 38 connected with the left side edge 32, a right side plate 39 connected with the right side edge 33, a left oblique side plate 40 connected with the left oblique edge 34, a right oblique side plate 41 connected with the right oblique edge 35 and a lower side plate 42 connected with the lower side edge 36; the included angle between the upper side 31 and the anchor platform panel 30 is 90 degrees, and the included angles between the left side plate 38, the right side plate 39, the left oblique side plate 40, the right oblique side plate 41 and the lower side plate 42 and the anchor platform panel 30 are respectively more than or equal to 90 degrees;
(2) determining the basic size of the anchor platform panel: determining the width and height of the anchor platform panel 30 according to the tonnage of the ship and the size of the selected anchor, determining the length of the lower side 36 of the anchor platform panel 30 and the included angle between the left inclined edge 34 and the right inclined edge 35; wherein, the width of the anchor platform panel 30 is the distance between the left side edge 32 and the right side edge 33, the height of the anchor platform panel 30 is the distance between the upper side edge 31 and the lower side edge 36, and the length of the lower side edge 36 is the minimum value within the design allowable range; the inclination angles of the left oblique side 34 and the right oblique side 35 are obtained through a first wave impact simulation test, the first wave impact simulation test is to manufacture a deformable anchor platform model 1-1 with a variable relative included angle between the left oblique side plate 40 and the right oblique side plate 41 according to a certain proportion under the condition that the included angles between the left side plate 38, the right side plate 39, the left oblique side plate 40, the right oblique side plate 41, the lower side plate 42 and the anchor platform panel 30 are all 90 degrees, and place the deformable anchor platform model 1-1 into the wave simulation device 2 to obtain an initial inclined side plate included angle between the left oblique side plate 40 and the right oblique side plate 41 under the condition that the deformable anchor platform model 1-1 bears the minimum impact energy, wherein the initial inclined side plate included angle is used as the included angle between the left oblique side 34 and the right oblique side 35 of the anchor platform panel 30;
(3) optimizing the included angle between the side plate and the anchor platform panel: a plurality of non-deformable anchor platform models 1-2 are manufactured according to a certain proportion, the included angles between the left side plate 38, the right side plate 39, the left inclined side plate 40, the right inclined side plate 41 and the lower side plate 42 of the non-deformable anchor platform models 1-2 and the anchor platform panel 30 are synchronously enlarged to different obtuse angles which are more than or equal to 90 degrees on the basis of 90 degrees, and placing the non-deformable anchor platform models 1-2 with different obtuse angles into a sea wave simulation device 2 to perform a second sea wave impact simulation test to obtain the impact energy borne by each non-deformable anchor platform model 1-2, and selecting the obtuse angles of the non-deformable anchor platform models 1-2 under the condition of bearing the minimum impact energy as the included angles between the left side plate 38, the right side plate 39, the left inclined side plate 40, the right inclined side plate 41 and the lower side plate 42 and the anchor platform panel 30 respectively.
Preferably, the sea wave simulation device 2 comprises a water tank 3, a sea wave simulation generator 4 arranged on the water tank 3, and a gap bridge 5 arranged above the water tank 3, wherein a section of cylindrical torsion beam 6 is vertically arranged downwards on the gap bridge 5, a connecting flange 7 is arranged at the lower end of the cylindrical torsion beam 6, a profiling seat 8 simulating the local shape of a ship outer plate at an anchor platform installation position is also arranged in the water tank 3, and a profiling surface 9 is arranged on the profiling seat 8; and a resistance strain gauge 10 for detecting the simulated sea wave impact energy is adhered to the cylindrical torsion beam 6, and the resistance strain gauge 10 is connected with a strain recorder 11.
When a sea wave impact simulation test is carried out, the anchor platform model 1-1 or 1-2 is hung and fixed on the connecting flange 7 of the cylindrical torsion beam 6, and the back surface of the rear side of the anchor platform model 1-1 or 1-2 is attached to the profiling surface 9 of the profiling seat 8; the strain recorder 11 dynamically records the change condition of the strain quantity of the simulated sea wave impacting the anchor platform model 1-1 or 1-2, so as to form a relation curve y ═ f (t) of the strain quantity y and time t, and an impact energy evaluation formula is established by using the relation curve y ═ f (t) of the strain quantity y and the time t
The impact energy evaluation formula is used as the impact energy borne by the anchor platform model 1-1 or 1-2 within a preset time period of 0-t in the sea wave impact simulation test.
In this embodiment, the transformable anchor platform model 1-1 includes a simulation lower side plate 12, a simulation left inclined side plate 14 and a simulation right inclined side plate 15 respectively rotatably connected to two ends of the simulation lower side plate 12 through a hinge shaft 13, a simulation left side plate 16 rotatably connected to an upper end of the simulation left inclined side plate 14 through a hinge shaft 13, and a simulation right side plate 17 rotatably connected to an upper end of the simulation right inclined side plate 15 through a hinge shaft 13, a rigid upright column 18 is vertically connected to a left-right symmetric position of an upper plane of the simulation lower side plate 12, a sliding sleeve 19 is sleeved on the rigid upright column 18, an upper left connecting seat 20, a lower left connecting seat 21, an upper right connecting seat 22, and a lower right connecting seat 23 are respectively arranged at upper and lower positions of left and right sides of the sliding sleeve 19, a pair of parallel equal-length left connecting rods 24 are respectively arranged between the upper left connecting seat 20, the lower left connecting seat 21, and the left side, go up right connecting seat 22, lower right connecting seat 23 with be provided with a pair of parallel isometric right connecting rod 25 through the hinge connection between the right side board 39, slide bushing 19 passes through when reciprocating left connecting rod 24 and right connecting rod 25 drive oblique curb plate contained angle between left oblique curb plate 40 and the right oblique curb plate 41 changes, slide bushing 19 through side direction set screw 26 with rigid column 18 is fixed mutually, the top of rigid column 18 is provided with mounting disc 27, mounting disc 27 with flange 7 on the cylindrical torsion beam 6 is fixed mutually.
Wherein, the front side of the area enclosed by the simulation left side plate 16, the simulation right side plate 17, the simulation left inclined side plate 14, the simulation right inclined side plate 15 and the simulation lower side plate 12 is connected with an elastic telescopic rubber plate 28 simulating the anchor platform panel 30 so as to adapt to the deformation of the deformable anchor platform model 1-1.
In this embodiment, the non-deformable anchor platform 1-2 is vertically connected with a rigid upright post 18, a mounting plate 27 is arranged at the top of the rigid upright post 18, and the mounting plate 27 is fixed with the connecting flange 7 on the cylindrical torsion beam 6.
According to the second wave impact simulation test result of each non-deformable anchor platform model 1-2, obtaining the discrete data relation between the impact energy H and the included angle alpha between the simulated left side plate 16, the simulated right side plate 17, the simulated left inclined side plate 14, the simulated right inclined side plate 15 and the simulated lower side plate 12 of the non-deformable anchor platform model 1-2 and the anchor platform panel 30 respectively, then, performing curve fitting processing on the discrete data relation by adopting a least square method to obtain a functional relation formula H ═ f (alpha) of the impact energy H and the included angle alpha, then solving the minimum value of the impact energy H and the value of the included angle alpha when the impact energy H takes the minimum value according to the functional relation formula H ═ f (alpha), and taking the value of an included angle alpha when the impact energy H is the minimum value as the optimized value of the included angle between the side plate and the anchor platform panel in the step (3).
Preferably, a drainage groove 29 is formed on the master surface 9 of the master base 8.
Preferably, the number of the resistance strain gauges 10 is multiple and is uniformly distributed along the circumferential direction of the cylindrical torsion beam 6, and the maximum strain amount measured in each resistance strain gauge 10 is taken as an actual strain amount at the same time point.
In this embodiment, the anchor platform panel 30 is provided with an anchor platform hole 43 at a central portion thereof.
In this embodiment, after the anchor platform panel 30 and each side plate are designed, the design of the inner rib plate of the anchor platform is performed.
As an alternative of the sea wave impact simulation test, under the condition of available conditions, the anchor platform models 1-1 and 1-2 in the embodiment, the profiling seat 8, the bridge 5 (including the cylindrical torsion beam 6) and the strain recorder 11 in the sea wave simulation device 2 can be used as separate test components, and the test components are rebuilt on the sea site and then are subjected to the sea wave impact simulation test on the anchor platform models 1-1 and 1-2, so as to better meet the actual conditions.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A ship anchor platform structure design method adopting steel plate splicing is characterized by comprising the following steps:
(1) establishing an initial model structure of an anchor platform: the initial model structure of the anchor platform comprises an anchor platform panel and a plurality of side plates connected to the periphery of the anchor platform panel; the anchor platform panel is a rectangular anchor platform panel, and the left right corner and the right corner below the anchor platform panel are respectively provided with a bevel edge formed by a chamfer, so that five side edges are formed on the periphery of the anchor platform panel, and a left-right symmetrical structure in the shape of the anchor platform panel is formed; the five side edges are an upper side edge, a left side edge, a right side edge, a left bevel edge, a right bevel edge and a lower side edge, and the plurality of side plates are the upper side plate connected with the upper side edge, the left side plate connected with the left side edge, the right side plate connected with the right side edge, the left bevel side plate connected with the left bevel edge, the right bevel side plate connected with the right bevel edge and the lower side plate connected with the lower side edge; the included angle between the upper side edge and the anchor platform panel is 90 degrees, and the included angles between the left side plate, the right side plate, the left oblique side plate, the right oblique side plate and the lower side plate and the anchor platform panel are respectively more than or equal to 90 degrees;
(2) determining the basic size of the anchor platform panel: determining the width and height of the anchor platform panel according to the tonnage of the ship and the size of the selected anchor, determining the length of the lower side edge of the anchor platform panel and the included angle between the left inclined edge and the right inclined edge; the width of the anchor platform panel is the distance between the left side edge and the right side edge, the height of the anchor platform panel is the distance between the upper side edge and the lower side edge, and the length of the lower side edge is the minimum value in a design allowable range; the inclination angles of the left oblique edge and the right oblique edge are obtained through a first sea wave impact simulation test, the first sea wave impact simulation test is to manufacture a deformable anchor platform model with a variable relative included angle between the left oblique side plate and the right oblique side plate according to a certain proportion under the condition that included angles between the left side plate, the right side plate, the left oblique side plate, the right oblique side plate, the lower side plate and the anchor platform panel are all 90 degrees, the deformable anchor platform model is placed in a sea wave simulation device to obtain an initial inclined side plate included angle between the left oblique side plate and the right oblique side plate under the condition that the deformable anchor platform model bears the minimum impact energy, and the initial inclined side plate included angle is used as the included angle between the left oblique edge and the right oblique edge of the anchor platform panel;
(3) optimizing the included angle between the side plate and the anchor platform panel: the method comprises the steps of manufacturing a plurality of non-deformable anchor platform models according to a certain proportion, synchronously amplifying included angles between a left side plate, a right side plate, a left oblique side plate, a right oblique side plate and a lower side plate of each non-deformable anchor platform model and an anchor platform panel to different obtuse angles which are not less than 90 degrees on the basis of 90 degrees, placing the non-deformable anchor platform models with different obtuse angles into a sea wave simulation device to carry out a second sea wave impact simulation test to obtain impact energy borne by each non-deformable anchor platform model, and selecting the obtuse angle under the condition that the non-deformable anchor platform model bears the minimum impact energy as the included angle between the left side plate, the right side plate, the left oblique side plate, the right oblique side plate and the lower side plate and the anchor platform panel.
2. The design method of the ship anchor block structure spliced by the steel plates as claimed in claim 1, wherein the sea wave simulation device comprises a water tank, a sea wave simulation generator arranged on the water tank, and a gap bridge arranged above the water tank, wherein a section of cylindrical torsion beam is vertically arranged downwards on the gap bridge, the lower end of the cylindrical torsion beam is provided with a connecting flange, a profiling seat simulating the local shape of a ship outer plate at the anchor block installation position is further arranged in the water tank, and a profiling surface is arranged on the profiling seat; and a resistance strain gauge for detecting and simulating sea wave impact energy is pasted on the cylindrical torsion beam and is connected with a strain recorder.
3. The design method of the ship anchor platform structure spliced by the steel plates as claimed in claim 2, wherein when a sea wave impact simulation test is performed, an anchor platform model is hung and fixed on a connecting flange of the cylindrical torsion beam, and the back surface of the rear side of the anchor platform model is attached to the die attaching surface of the die attaching seat; the strain recorder dynamically records the change condition of the strain quantity for simulating the sea wave impact of the sea wave on the anchor platform model, so that a relation curve y (f) (t) of the strain quantity y and the time t is formed, and (f) (t) is obtained by utilizing the relation curve y (f) of the strain quantity y and the time tt) establishing an impact energy evaluation formula
The impact energy evaluation formula is used as the impact energy borne by the anchor platform model within a preset time period of 0-t in the sea wave impact simulation test.
4. The design method of ship anchor block structure spliced by steel plates as claimed in claim 3, wherein said deformable anchor block model comprises a simulated lower side plate, a simulated left inclined side plate and a simulated right inclined side plate respectively connected with both ends of said simulated lower side plate by means of a hinge shaft, a simulated left side plate connected with the upper end of said simulated left inclined side plate by means of a hinge shaft, and a simulated right side plate connected with the upper end of said simulated right inclined side plate by means of a hinge shaft, a rigid column is vertically connected with the left-right symmetrical position of the upper plane of said simulated lower side plate, a sliding sleeve is sleeved on said rigid column, an upper left connecting seat, a lower left connecting seat, an upper right connecting seat and a lower right connecting seat are respectively arranged at the upper and lower positions of the left and right sides of said sliding sleeve, a pair of parallel and equal-length left connecting rods are arranged between said upper left connecting seat, lower left connecting seat and said left side plate by means, go up right connecting seat, lower right connecting seat with be provided with the isometric right connecting rod of a pair of parallel through the hinge connection between the right side board, the sliding sleeve passes through when reciprocating left connecting rod and right connecting rod drive oblique curb plate contained angle between left side oblique curb plate and the right oblique curb plate changes, the sliding sleeve pass through side direction set screw with the rigidity stand is fixed mutually, the top of rigidity stand is provided with the mounting disc, the mounting disc with flange on the cylindrical torsion beam is fixed mutually.
5. The design method of ship anchor block structure spliced by steel plates as claimed in claim 4, wherein the front side of the area enclosed by the simulated left side plate, the simulated right side plate, the simulated left oblique side plate, the simulated right oblique side plate and the simulated lower side plate is connected with an elastic retractable rubber plate for simulating the anchor block panel to adapt to the deformation of the deformable anchor block model.
6. The design method of a ship anchor block structure spliced by steel plates as claimed in claim 3, wherein a rigid upright column is vertically connected to the non-deformable anchor block, a mounting plate is arranged at the top of the rigid upright column, and the mounting plate is fixed with a connecting flange on the cylindrical torsion beam.
7. The method for designing the ship anchor platform structure spliced by the steel plates as claimed in claim 3, the method is characterized in that according to the second wave impact simulation test result of each non-deformable anchor platform model, the discrete data relation between the impact energy H and the included angle alpha between the simulated left side plate, the simulated right side plate, the simulated left inclined side plate, the simulated right inclined side plate and the simulated lower side plate of the non-deformable anchor platform model and the anchor platform panel is obtained, then, performing curve fitting processing on the discrete data relation by adopting a least square method to obtain a functional relation formula H ═ f (alpha) of the impact energy H and the included angle alpha, then solving the minimum value of the impact energy H and the value of the included angle alpha when the impact energy H takes the minimum value according to the functional relation formula H ═ f (alpha), and taking the value of an included angle alpha when the impact energy H is the minimum value as the optimized value of the included angle between the side plate and the anchor platform panel in the step (3).
8. The method for designing the ship anchor block structure spliced by the steel plates as claimed in claim 1, wherein a drainage groove is formed on a die supporting surface of the die supporting base.
9. The method as claimed in claim 2, wherein the number of the resistance strain gauges is multiple and the resistance strain gauges are uniformly distributed along the circumferential direction of the cylindrical torsion beam, and the maximum strain measured in each resistance strain gauge at the same time point is taken as the actual strain.
10. The design method of the ship anchor platform structure spliced by the steel plates according to claim 1, wherein after the design of the anchor platform panel and each side plate is completed, the design of the rib plates in the anchor platform is performed.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118500910A (en) * | 2024-07-17 | 2024-08-16 | 福建博洋船舶工业有限公司 | Tensile strength experimental device for ship anchor chain production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201961497U (en) * | 2011-03-28 | 2011-09-07 | 扬帆集团股份有限公司 | Ship anchor system design test device |
| KR101314275B1 (en) * | 2012-08-09 | 2013-10-02 | 대우조선해양 주식회사 | Anchor pocket structure for vessels and assembly method thereof |
| CN103979073A (en) * | 2014-05-26 | 2014-08-13 | 上海江南长兴重工有限责任公司 | Installation method for segmented pre-installation of anchor table, anchor mouth and hawse pipe |
| CN108082391A (en) * | 2017-12-08 | 2018-05-29 | 中船黄埔文冲船舶有限公司 | A kind of lofting Design method of box anchor recess |
| CN209326929U (en) * | 2019-03-19 | 2019-08-30 | 河海大学 | A kind of dock ship shock simulation test case |
-
2020
- 2020-09-25 CN CN202011020825.1A patent/CN112319722B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201961497U (en) * | 2011-03-28 | 2011-09-07 | 扬帆集团股份有限公司 | Ship anchor system design test device |
| KR101314275B1 (en) * | 2012-08-09 | 2013-10-02 | 대우조선해양 주식회사 | Anchor pocket structure for vessels and assembly method thereof |
| CN103979073A (en) * | 2014-05-26 | 2014-08-13 | 上海江南长兴重工有限责任公司 | Installation method for segmented pre-installation of anchor table, anchor mouth and hawse pipe |
| CN108082391A (en) * | 2017-12-08 | 2018-05-29 | 中船黄埔文冲船舶有限公司 | A kind of lofting Design method of box anchor recess |
| CN209326929U (en) * | 2019-03-19 | 2019-08-30 | 河海大学 | A kind of dock ship shock simulation test case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118500910A (en) * | 2024-07-17 | 2024-08-16 | 福建博洋船舶工业有限公司 | Tensile strength experimental device for ship anchor chain production |
| CN118500910B (en) * | 2024-07-17 | 2024-09-13 | 福建博洋船舶工业有限公司 | Tensile strength experimental device for ship anchor chain production |
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