CN113591210B - Ship cabin damping model definition method based on association design and attribute grouping - Google Patents
Ship cabin damping model definition method based on association design and attribute grouping Download PDFInfo
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Abstract
The invention discloses a ship cabin damping model definition method based on association design and attribute grouping, which comprises the following steps: 1) Establishing a cabin damping data set, wherein the cabin damping data set is used for organizing and managing a cabin damping three-dimensional model and grouping attributes, and the grouping attributes comprise cabin damping types, laying areas, laying positions, laying forms and material types; 2) And establishing a cabin damping laying form template based on a supporting surface of the damping original template as an input element by adopting an association design method, selecting a laying position surface when the template is called, replacing the original input element of the template by the laying position surface extracted from the input element set through association design, generating a damping model according to the selected reference surface, and laying the damping on a specific position of a cabin to realize quick design of cabin damping. According to the invention, the cabin damping design stage is advanced through the association design, so that the cabin damping design efficiency and the statistical accuracy of the material consumption can be improved.
Description
Technical Field
The invention relates to a ship structure digital design technology, in particular to a ship cabin damping model definition method based on association design and attribute grouping.
Background
The ship cabin damping is mainly used for vibration reduction and noise reduction, and the mechanism is to convert vibration energy into other forms of energy by improving the loss factor of materials or structures. The core elements of the ship cabin damping design are laying positions, laying forms and material consumption statistics, and the three elements intuitively reflect the characteristics of relatively lagging cabin damping design and stronger design dependence in the whole design stage of the ship because the laying positions are completely dependent on the ship body structure.
Under the traditional two-dimensional design mode, the statistics of the consumption of the cabin damping materials is generally converted through the laying area of the bulkhead, but the cabin damping design stage of the ship is relatively lagged, and the cabin damping is hardly involved in comprehensive balance, so that the statistics of the consumption of the cabin damping materials is often an empirical value, and the stock of the ship yard damping is influenced to a certain extent. Along with the increasing prominence of the demand of the fine design of the ship, the three-dimensional digital design gradually becomes the most effective technical means for realizing the fine design of the ship, and compared with the two-dimensional design mode, the three-dimensional collaborative design has stronger timeliness, the cabin structure design result can be displayed in real time, the cabin damping design can obtain design input earlier, the problem of relative hysteresis of the cabin damping design is greatly solved, but the relevance of the cabin damping and the cabin structure is ensured, the cabin damping design is rapidly completed, and the precondition of deducing the damping material consumption from an empirical value to an approximate accurate value is also provided.
Aiming at the problems, a ship cabin damping model definition method based on association design and attribute grouping needs to be provided, the cabin damping design stage is advanced through association design, synchronous design is carried out with a ship body structure, the cabin damping design efficiency is improved, and meanwhile, cabin damping can participate in comprehensive balance and the design state is cured along with the ship body structure in advance; the necessary attributes of cabin damping material statistics are managed in groups through defining a cabin damping data set and a parameterized template, meanwhile, cabin damping laying forms are predefined in the template, cabin damping laying positions are accurately positioned, and cabin damping material consumption is rapidly counted.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a ship cabin damping model definition method based on association design and attribute grouping.
The technical scheme adopted for solving the technical problems is as follows: a ship cabin damping model definition method based on associated design and attribute grouping comprises the following steps:
1) Establishing a cabin damping data set, wherein the cabin damping data set is used for organizing and managing a cabin damping three-dimensional model and grouping attributes, and the grouping attributes comprise cabin damping types, laying areas, laying positions, laying forms and material types; the data set carries out hierarchical management on the cabin damping three-dimensional model according to the dimensionalities of different grouping attributes, and specifically comprises the following steps: the first stage is a cabin damping model management node, the second stage is a laying position management node, the second stage also comprises an input element set, and the third stage is a specific cabin damping model management node, wherein the laying mode and the material type are contained;
the input element set is a supporting surface set to be laid with damping extracted from a cabin surrounding wall and a profile structure;
The cabin damping dataset grouping attribute is specifically as follows:
1.1 Cabin damping type): the cabin damping three-dimensional model primary management unit is a root node, and the lower part of the root node comprises an input element set and a laying position management node;
1.2 A) laying area: the attribute of the laying area is applied to the root node and combined with the cabin damping type to intuitively identify the node name of the data set, and the laying area is represented by a cabin code number;
1.3 Input element set): rapidly designing an extracted reference element set which is a second-stage node of the cabin damping three-dimensional model, wherein the node comprises a plurality of geometric element sets, and respectively managing the extracted elements of different laying positions;
1.4 Lay down position): the cabin damping three-dimensional model secondary management unit is a second-stage node, and the laying positions are divided into left wall damping, right wall damping, front wall damping, rear wall damping and deck damping;
1.5 A) laying form: is a specific damping three-dimensional geometric model;
1.6 Material type): the damping material marks are attached to the cabin damping three-dimensional model;
2) Adopting an association design method, establishing a cabin damping laying form template based on a supporting surface of a damping original template as an input element, selecting a laying position surface when the template is called, replacing the original input element of the template by the laying position surface extracted from an input element set through association design, generating a damping model according to the selected reference surface, and laying the damping on a specific position of a cabin to realize quick design of cabin damping;
The input elements in the template refer to the supporting surfaces for creating the damping original template, and the supporting surfaces are replaced by the supporting surfaces extracted from the bulkhead through association when the damping template is applied;
the specific process is as follows:
2.1 Template definition): creating a damping geometric model according to the input elements, and packaging the geometric model set input elements into a template unit for release; the template mainly comprises 3 data set nodes, namely an input element (InputElement), a geometric model (Partbody) and an Output result (Output), wherein the input element is used as a reference for establishing a template geometric model association design, the geometric model is a specific laying form of damping, and the Output result is an encapsulated geometric model set input element;
2.2 Template application environment preparation): setting up cabin damping design nodes according to the data set hierarchical form of the step 1), extracting hull structure attaching reference surfaces in groups under the second-stage input element set nodes, and reserving association relations between the extracted hull structure attaching reference surfaces and hull structures;
2.3 Template application: and calling a damping template under the second-stage laying position node, selecting a corresponding reference surface from the second-stage input element set node as an input element of the template, establishing a cabin damping laying form template, replacing the original input element of the template, and generating a damping three-dimensional geometric model according to the selected reference surface.
The invention has the beneficial effects that:
according to the method, the cabin damping design stage is advanced through the association design, parallel design is carried out with the ship body structure, the cabin damping data set and the parameterized template are customized, the cabin damping laying form is predefined in the template, on one hand, cabin damping can participate in comprehensive balance, the design state is cured along with the ship body structure in advance, on the other hand, the cabin damping laying position is accurately positioned through attribute grouping, the cabin damping material consumption is rapidly counted, and the cabin damping design efficiency and the material consumption counting precision are improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic representation of a cabin damping dataset of an embodiment of the present invention;
FIG. 2 is a schematic view of a cabin damping template according to an embodiment of the present invention;
FIG. 3 is a schematic view of the hull structure attachment reference surface correlation extraction according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of a cabin damping template application of an embodiment of the present invention;
FIG. 5 is a schematic view of a cabin damping layout area and weight calculation according to an embodiment of the present invention;
FIG. 6 is a statistical diagram of cabin damping capacity according to an embodiment of the present invention;
FIG. 7 is a flow chart of cabin damping model definition in accordance with an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 7, a method for defining a ship cabin damping model based on association design and attribute grouping is specifically as follows:
step1: cabin damping dataset definition
In the step 1, a cabin damping data set is used for organizing and managing a cabin damping three-dimensional model and grouping attributes; wherein the grouping attribute comprises cabin damping type, laying area, laying position, laying form and material type; the data set carries out hierarchical management on the damping three-dimensional model according to different attribute dimensions, and the damping three-dimensional model can be particularly divided into three stages, wherein the first stage is a cabin damping type management node, the second stage is a laying position management node, the second stage also comprises an input element set, and the third stage is a specific cabin damping model and comprises a laying form and a material type.
The cabin damping dataset is as in fig. 1. The cabin damping dataset grouping attribute is specifically as follows:
1.1 Cabin damping type): the cabin damping three-dimensional model primary management unit is a root node, and the lower part of the root node comprises an input element set and a laying position management node;
1.2 A) laying area: the attribute of the laying area is applied to the root node and combined with the cabin damping type to intuitively identify the node name of the data set, and the laying area is represented by a cabin code number;
1.3 Input element set): rapidly designing an extracted reference element set which is a second-stage node of the cabin damping three-dimensional model, wherein the node comprises a plurality of geometric element sets, and respectively managing the extracted elements of different laying positions;
1.4 Lay down position): the cabin damping three-dimensional model secondary management unit is a second-stage node, and the laying positions are divided into left wall damping, right wall damping, front wall damping, rear wall damping and deck damping;
1.5 A) laying form: is a specific damping three-dimensional geometric model;
1.6 Material type): the damping material marks are attached to the cabin damping three-dimensional model;
step2: defining a cabin damping model;
and the method adopts an association design method, a cabin damping laying form template is customized based on input elements, a laying position surface is selected when the template is called, the template automatically replaces the input elements based on association design, and damping is laid on a specific position, so that cabin damping rapid design is realized.
In step 2, according to the associated design flow, the damping template is applied specifically as follows:
Template definition: and creating a damping geometric model according to the input elements, and packaging the geometric model set input elements into a damping template unit for release. The damping template mainly comprises 3 data set nodes, namely an input element (InputElement), a geometric model (Partbody) and an Output result (Output), wherein the input element is used as a reference for the template geometric model association design creation, the geometric model is a specific laying form of damping, and the Output result is the packaged geometric model set input element. The definition form of the cabin damping template is shown in fig. 2.
Template application environment preparation: and (3) constructing cabin damping design nodes according to the data set hierarchical form of the step (1), extracting hull structure attachment reference surfaces under the second-stage input element set nodes in a grouping mode, and reserving the association relation between the extraction result and the hull structure, wherein the hull structure attachment reference surfaces are extracted in association with each other in detail as shown in fig. 3.
Template application: and calling a damping template under a second-stage laying position node, selecting a corresponding reference surface from the second-stage input element set node as an input element of the template, replacing the original input element of the template by the associated design, and generating a damping model according to the selected reference surface, wherein the application of the template is shown in fig. 4.
Based on the complete cabin damping model and attribute grouping, the accurate consumption of cabin damping can be obtained according to the laying position through weight calculation, the damping laying area and the weight calculation are detailed in fig. 5, and the damping consumption statistics are detailed in fig. 6.
The cabin damping model definition flow based on the association design and attribute grouping is detailed in fig. 7.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (2)
1. A ship cabin damping model definition method based on association design and attribute grouping is characterized by comprising the following steps:
1) Establishing a cabin damping data set, wherein the cabin damping data set is used for organizing and managing a cabin damping three-dimensional model and grouping attributes, and the grouping attributes comprise cabin damping types, laying areas, laying positions, laying forms and material types; the data set carries out hierarchical management on the cabin damping three-dimensional model according to the dimensionalities of different grouping attributes, and specifically comprises the following steps: the first stage is a cabin damping model management node, the second stage is a laying position management node, the second stage also comprises an input element set, and the third stage is a specific cabin damping model management node, wherein the laying mode and the material type are contained;
the input element set is a supporting surface set to be laid with damping extracted from a cabin surrounding wall and a profile structure;
2) Adopting an association design method, establishing a cabin damping laying form template based on a supporting surface of a damping original template as an input element, selecting a laying position surface when the template is called, replacing the original input element of the template by the laying position surface extracted from an input element set through association design, generating a damping model according to the selected reference surface, and laying the damping on a specific position of a cabin to realize quick design of cabin damping;
the specific process is as follows:
2.1 Template definition): creating a damping geometric model according to the input elements, and packaging the geometric model set input elements into a template unit for release; the template mainly comprises 3 data set nodes which are respectively input elements, a geometric model and an output result, wherein the input elements are used as reference references for the association design creation of the geometric model of the template, the geometric model is in a specific laying form of damping, and the output result is the input elements of the geometric model set after encapsulation;
2.2 Template application environment preparation): setting up cabin damping design nodes according to the data set hierarchical form of the step 1), extracting hull structure attaching reference surfaces in groups under the second-stage input element set nodes, and reserving association relations between the extracted hull structure attaching reference surfaces and hull structures;
2.3 Template application: and calling a damping template under the second-stage laying position node, selecting a corresponding reference surface from the second-stage input element set node as an input element of the template, establishing a cabin damping laying form template, replacing the original input element of the template, and generating a damping three-dimensional geometric model according to the selected reference surface.
2. The method for defining a damping model of a ship cabin based on the association design and the attribute grouping according to claim 1, wherein the compartment damping data set grouping attribute in the step 1) is specifically as follows:
1.1 Cabin damping type): the cabin damping three-dimensional model primary management unit is a root node, and the lower part of the root node comprises an input element set and a laying position management node;
1.2 A) laying area: the attribute of the laying area is applied to the root node and combined with the cabin damping type to intuitively identify the node name of the data set, and the laying area is represented by a cabin code number;
1.3 Input element set): rapidly designing an extracted reference element set which is a second-stage node of the cabin damping three-dimensional model, wherein the node comprises a plurality of geometric element sets, and respectively managing the extracted elements of different laying positions;
1.4 Lay down position): the cabin damping three-dimensional model secondary management unit is a second-stage node, and the laying positions are divided into left wall damping, right wall damping, front wall damping, rear wall damping and deck damping;
1.5 A) laying form: is a specific damping three-dimensional geometric model;
1.6 Material type): the damping material marks are attached to the cabin damping three-dimensional model.
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| CN108846192B (en) * | 2018-06-08 | 2022-03-11 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Ship three-dimensional acoustoelastic analysis method for structure arbitrary damping treatment |
| CN110489876A (en) * | 2019-08-21 | 2019-11-22 | 西北工业大学 | A kind of gear-box additional damping Vibration Absorption Designing method based on structural intensity |
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| 基于统计能量分析的船舶舱室阻尼降噪布置优化;吴卫国等;《中国舰船研究》;20170727;41-48 * |
| 船舶电力推进系统建模与稳定性分析;侯艳雪;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20180615;C036-156 * |
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