CN114154348A - Marine large cable modeling method - Google Patents
Marine large cable modeling method Download PDFInfo
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- CN114154348A CN114154348A CN202111523489.7A CN202111523489A CN114154348A CN 114154348 A CN114154348 A CN 114154348A CN 202111523489 A CN202111523489 A CN 202111523489A CN 114154348 A CN114154348 A CN 114154348A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 5
- 238000009877 rendering Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/16—Cables, cable trees or wire harnesses
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Abstract
The invention relates to a modeling method of a large cable for a ship, wherein the path of the large cable is as follows: a phase-shifting transformer from the starting equipment medium-voltage distribution board to the terminating equipment; the method is characterized in that: the specific modeling method is as follows: the large cables are modeled and lofted in three-dimensional software, attached to the specific positions of electrical equipment, a cable bracket, flat steel and a penetrating piece in the model, lofting of each large cable from starting equipment to ending equipment is completed by drawing a plurality of lines, then a cable model is generated, and the length of the whole cable is calculated through an automatic length calculation program. The method for modeling and lofting simulation of the cable trend achieves three-dimensional visualization, is close to the condition of actual cable laying, and does not need margin for a path; the method optimizes and quantifies the key nodes in the cable path, obviously improves the utilization rate of the large cable, and lays a good foundation for the next automatic measurement.
Description
Technical Field
The invention relates to the technical field of large cable modeling, in particular to a large cable modeling method for a ship.
Background
The method comprises the steps of selecting points in a cable path, comparing surfaces, not reflecting the real trend of a large cable, accumulating a plurality of line segments to obtain the length of one line segment, wherein the length of the line segment represents the length of the whole cable, the error is large, the data is inaccurate, and the utilization rate of the large cable is not improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a modeling method for a large marine cable, which can solve the problems of large path margin and low utilization rate of the large cable of a general large cable according to a conventional cable modeling mode.
In order to solve the technical problems, the technical scheme of the invention is as follows: a modeling method for a large cable for a ship comprises the following steps: a phase-shifting transformer from the starting equipment medium-voltage distribution board to the terminating equipment; the innovation points are as follows: the specific modeling method is as follows:
s1: drawing a cable path: the method comprises the following steps of (1) calling a cable path from a medium-voltage distribution board of starting equipment to a phase-shifting transformer of terminating equipment from a software model, and drawing a plurality of lines according to the direction of the cable; according to the actual situation of the site, the details of the front length, the back length, the inclined plane, the height drop and the bending radius of the cable are noticed when drawing the multi-section cable; simultaneously, establishing a wiring terminal model of the equipment; after the drawing of the multiple lines on the path is finished, the multiple lines on the whole path are connected to realize the drawing of the cable path;
s2: modeling a cable: a cable model is newly established in software, a cable with the diameter of 60mm is established by adopting the cable model, and rendering display is carried out on a path between a medium-voltage distribution board and a phase-shifting transformer;
s3: measuring the length of the cable: after the modeling of the cable is completed, measuring the length of the cable by adopting software; in the measurement of the cable length, the length of each line segment is selected and the length value of the whole cable is calculated in an accumulative summation mode, so that the rapid and accurate measurement can be realized, and the measurement precision reaches the millimeter level;
s4: path node acquisition: collecting path nodes passed by the large cable according to the trend of the large cable model and the cable model, and establishing a database; the final length of the large cable is determined by extracting the length of each large cable from the database and comparing and verifying the length of each large cable with the length of the modeling cable;
s5: drawing a large cable trend diagram: the large cable routing graph is independently manufactured, whether the cable is laid from the inner ring and the outer ring or from the middle can be clearly distinguished by adopting the graph, the actual pulling and releasing of the site are matched with the path trend of the model to the maximum extent, the actual length is close to the theoretical value, and the large cable utilization rate is improved to the maximum extent.
Further, in the step S1, drawing a cable path, where the medium-low voltage is 6D and the medium-low voltage is 9D in the bending radius; where D is the cable diameter.
Furthermore, the cable path is drawn in S1, and the wiring terminal model of the device is built to realize accurate wiring position of the final cable, so that the allowance of the cable device end is given, and the utilization rate of the cable is further improved.
The invention has the advantages that:
1) according to the invention, the large cables are modeled and lofted in three-dimensional software, and attached to specific positions of electrical equipment, a cable bracket, flat steel and a penetrating piece in the model, lofting of each large cable is finished from starting equipment to ending equipment in a multi-segment line drawing mode, then a cable model is generated, and the length of the whole cable is calculated through an automatic length calculation program. The method for modeling and lofting simulation of the cable trend achieves three-dimensional visualization, is close to the condition of actual cable laying, and does not need margin for a path; the method optimizes and quantifies the key nodes in the cable path, obviously improves the utilization rate of the large cable, and lays a good foundation for the next automatic measurement.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a modeling method of a large cable for a ship according to the present invention.
Fig. 2 is a schematic path diagram of a modeling method of a large cable for a ship according to the present invention.
FIG. 3 is a cable modeling diagram of a large cable modeling method for a ship according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A modeling method for a large cable for a ship as shown in fig. 1 to 3, the path of the large cable is: a phase-shifting transformer from the starting equipment medium-voltage distribution board to the terminating equipment; the specific modeling method is as follows:
s1: drawing a cable path: the method comprises the following steps of (1) calling a cable path from a medium-voltage distribution board of starting equipment to a phase-shifting transformer of terminating equipment from a software model, and drawing a plurality of lines according to the direction of the cable; according to the actual situation of the site, the details of the front length, the back length, the inclined plane, the height drop and the bending radius of the cable are noticed when drawing the multi-section cable; simultaneously, establishing a wiring terminal model of the equipment; after the drawing of the multiple lines on the path is finished, the multiple lines on the whole path are connected to realize the drawing of the cable path;
s2: modeling a cable: a cable model is newly established in software, a cable with the diameter of 60mm is established by adopting the cable model, and rendering display is carried out on a path between a medium-voltage distribution board and a phase-shifting transformer;
s3: measuring the length of the cable: after the modeling of the cable is completed, measuring the length of the cable by adopting software; in the measurement of the cable length, the length of each line segment is selected and the length value of the whole cable is calculated in an accumulative summation mode, so that the rapid and accurate measurement can be realized, and the measurement precision reaches the millimeter level;
s4: path node acquisition: collecting path nodes passed by the large cable according to the trend of the large cable model and the cable model, and establishing a database; the final length of the large cable is determined by extracting the length of each large cable from the database and comparing and verifying the length of each large cable with the length of the modeling cable;
s5: drawing a large cable trend diagram: the large cable routing graph is independently manufactured, whether the cable is laid from the inner ring and the outer ring or from the middle can be clearly distinguished by adopting the graph, the actual pulling and releasing of the site are matched with the path trend of the model to the maximum extent, the actual length is close to the theoretical value, and the large cable utilization rate is improved to the maximum extent.
Drawing a cable path in S1, wherein the medium and low voltage of the bending radius is 6D, and the medium voltage is 9D; where D is the cable diameter.
And (4) drawing a cable path in S1, establishing a wiring terminal model of the equipment to realize accurate wiring position of the final cable, facilitating setting of allowance of a cable equipment end, and further improving the utilization rate of the cable.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A modeling method for a large cable for a ship comprises the following steps: a phase-shifting transformer from the starting equipment medium-voltage distribution board to the terminating equipment; the method is characterized in that: the specific modeling method is as follows:
s1: drawing a cable path: the method comprises the following steps of (1) calling a cable path from a medium-voltage distribution board of starting equipment to a phase-shifting transformer of terminating equipment from a software model, and drawing a plurality of lines according to the direction of the cable; according to the actual situation of the site, the details of the front length, the back length, the inclined plane, the height drop and the bending radius of the cable are noticed when drawing the multi-section cable; simultaneously, establishing a wiring terminal model of the equipment; after the drawing of the multiple lines on the path is finished, the multiple lines on the whole path are connected to realize the drawing of the cable path;
s2: modeling a cable: a cable model is newly established in software, a cable with the diameter of 60mm is established by adopting the cable model, and rendering display is carried out on a path between a medium-voltage distribution board and a phase-shifting transformer;
s3: measuring the length of the cable: after the modeling of the cable is completed, measuring the length of the cable by adopting software; in the measurement of the cable length, the length of each line segment is selected and the length value of the whole cable is calculated in an accumulative summation mode, so that the rapid and accurate measurement can be realized, and the measurement precision reaches the millimeter level;
s4: path node acquisition: collecting path nodes passed by the large cable according to the trend of the large cable model and the cable model, and establishing a database; the final length of the large cable is determined by extracting the length of each large cable from the database and comparing and verifying the length of each large cable with the length of the modeling cable;
s5: drawing a large cable trend diagram: the large cable routing graph is independently manufactured, whether the cable is laid from the inner ring and the outer ring or from the middle can be clearly distinguished by adopting the graph, the actual pulling and releasing of the site are matched with the path trend of the model to the maximum extent, the actual length is close to the theoretical value, and the large cable utilization rate is improved to the maximum extent.
2. The modeling method for the large cable for the ship according to claim 1, characterized in that: drawing a cable path in the S1, wherein the medium and low voltage in the bending radius is 6D, and the medium voltage is 9D; where D is the cable diameter.
3. The modeling method for the large cable for the ship according to claim 1, characterized in that: and drawing a cable path in the S1, establishing a wiring terminal model of the equipment to realize accurate wiring position of the final cable, facilitating setting of allowance of a cable equipment end, and further improving the utilization rate of the cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111523489.7A CN114154348B (en) | 2021-12-14 | 2021-12-14 | Marine large cable modeling method |
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| CN202111523489.7A CN114154348B (en) | 2021-12-14 | 2021-12-14 | Marine large cable modeling method |
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| CN114154348A true CN114154348A (en) | 2022-03-08 |
| CN114154348B CN114154348B (en) | 2024-05-07 |
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