CN111209636B - Top-down three-dimensional design method and system for pre-buried heat pipe of satellite - Google Patents
Top-down three-dimensional design method and system for pre-buried heat pipe of satellite Download PDFInfo
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Abstract
The invention provides a top-down three-dimensional layout method and a system for a pre-buried heat pipe of a satellite, which comprise the following steps: creating a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model, and presetting the central lines of heat pipe arrangement; respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin plate heat pipe layout framework model, and carrying out superposition assembly on the heat pipe part models and the cabin plate heat pipe layout framework model; leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model; taking the central line as a reference axis of the scanning characteristic, and selecting a corresponding heat pipe type spectrum from a heat pipe section library; the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode; the invention makes the design method of the pre-buried heat pipe of the satellite more standard; the design efficiency of the whole embedded heat pipe is improved.
Description
Technical Field
The invention relates to the technical field of satellite assembly, in particular to a top-down three-dimensional layout method and system for pre-buried heat pipes of a satellite, and in particular relates to a top-down design, assembly and updating method for pre-buried heat pipes of a cabin plate in the design of a satellite thermal control subsystem when three-dimensional design is carried out.
Background
Along with the development demand of satellite model development, the requirements for full three-dimensional digital design and collaborative design are gradually improved, and particularly, the full three-dimensional digital model is completely realized and effective guarantee is provided for three-dimensional downloading; the design of a satellite thermal control design model needs to be standardized, rationalized and accurate, the design of pre-embedded heat pipes in the satellite thermal control design is used as the important design input of the production of the structural cellular board, in the early design process, two-dimensional graph projection is still carried out according to other professional three-dimensional design models, then the heat pipe design is carried out in the two-dimensional graph, and then three-dimensional modeling and assembly are carried out according to the two-dimensional graph design drawing. Not only design inefficiency, and cause the quality problem easily.
The design input and interference factors of the satellite thermal control embedded heat pipe are numerous, and the heat treatment of equipment, the interference condition with an equipment mounting hole, the interference with a structural honeycomb panel embedded part and an embedded frame, the interference with a cable network support/clamp mounting hole, the interference with a pipeline valve/conduit support and the cost of satellite development need to be considered. Therefore, after the heat pipe design is completed, a large number of iterations are required to be performed on the configuration and layout of the heat pipe, and although the design and assembly of the satellite heat pipe can be realized by the traditional design modeling method, the design of the satellite embedded heat pipe also faces many challenges and difficulties along with the development requirement of diversification and complication of satellite models. The main points are as follows:
(1) a unified management mechanism is not provided, and the embedded heat pipe modeling and assembling method is determined by the level of a designer;
(2) the design is developed through a two-dimensional diagram, and the working efficiency is not high only for meeting the design mode of creating a three-dimensional model for other specialties;
(3) the existing heat pipe derivation and heat pipe deformation technology does not accord with the design idea of the heat pipe;
(4) the heat pipe modification and change links are more, and omission easily occurs.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a top-down three-dimensional layout method and system for a pre-buried heat pipe of a satellite.
The invention provides a top-down three-dimensional layout method for a pre-buried heat pipe of a satellite, which comprises the following steps:
heat pipe layout environment preparation: collecting cabin board element layout information and cabin board connection layout information in a three-dimensional layout model of a thermal control subsystem;
a cabin plate heat pipe pipeline layout step: establishing a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to collected cabin plate element layout information and cabin plate connection layout information, and presetting a central line for representing the arrangement of the embedded heat pipes;
the heat pipe part creating and assembling steps are as follows: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, and assembling the heat pipe part models into the heat pipe assembly model in a superposition assembly mode with the heat pipe part models and the cabin heat pipe layout framework model;
collecting the heat pipe pipelines: leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model;
the section selection step of the heat pipe: taking the central line of the heat pipe arrangement in the heat pipe part model as a reference axis of the scanning characteristic, selecting a corresponding heat pipe type spectrum from a heat pipe section library, and creating the heat pipe part characteristic;
creating a heat pipe self-adaptability creating step: the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode;
the thermal control subsystem three-dimensional layout model is a three-dimensional model for layout development of the thermal control subsystem and is used for developing three-dimensional layout design of the thermal control subsystem;
the cabin plate heat pipe layout skeleton model is a special skeleton model for top layer definition in the top-down analysis algorithm design process of the heat pipe, and the arrangement center line of the heat pipe is defined;
the heat pipe part model is as follows: a heat pipe part model is created according to the number of the heat pipes;
the heat pipe assembly model: the assembly model is composed of the heat pipe and the heat pipe accessories;
the heat pipe section library comprises a type spectrum section library of the heat pipe, and the sections of the type spectrum are managed in a unified mode;
the heat pipe model includes a heat pipe assembly model and a heat pipe part model.
Preferably, the cabin component layout information in the heat pipe layout environment preparation step includes: floor layout component footprint information; the cabin board connection layout information comprises cabin board connection embedded part footprint information;
the layout steps of the cabin plate heat pipe pipeline comprise: the method comprises the steps of establishing a prt-format cabin plate heat pipe layout framework model in a three-dimensional layout model of a thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to cabin plate element layout information and cabin plate connection layout information, representing the center line of embedded heat pipe arrangement, and establishing a heat pipe installation reference coordinate system at the top point of a pipeline.
Preferably, the heat pipe part creating and assembling step includes: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, creating neutral plane reference coordinates with the offset distance being the plate thickness of the satellite honeycomb sandwich plate and the preset value through a default coordinate system in the heat pipe part models, introducing corresponding pipelines in the cabin heat pipe layout framework model into the heat pipe part models in a data sharing mode, and assembling the heat pipe part models into the heat pipe assembly model in a mode that the neutral plane reference coordinates are overlapped with a heat pipe installation reference coordinate system in the cabin heat pipe layout framework model.
Preferably, the heat pipe line collecting step includes: guiding the central line of the heat pipe arrangement in the cabin heat pipe layout framework model into a corresponding heat pipe part model by copying geometry, and defining the central line of the heat pipe to a default coordinate system in the heat pipe part model through the default coordinate system in the heat pipe part model;
preferably, the heat pipe section shape selecting step comprises: creating a scanning characteristic and/or a variable cross-section scanning characteristic, taking a central line of heat pipe arrangement led into a heat pipe part model as a scanning track, and selecting a model from a heat pipe cross-section library;
the creating heat pipe self-adaptive creating step comprises the following steps: by modifying the pipeline geometric drive size parameter and the position drive size parameter in the deck heat pipe layout framework model, the heat pipe model responds to the update of the configuration and the installation position in a self-adaptive manner.
The invention provides a top-down three-dimensional layout system for embedded heat pipes of satellites, which comprises:
a heat pipe layout environment preparation module: collecting cabin board element layout information and cabin board connection layout information in a three-dimensional layout model of a thermal control subsystem;
cabin board heat pipe pipeline layout module: establishing a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to collected cabin plate element layout information and cabin plate connection layout information, and presetting a central line for representing the arrangement of the embedded heat pipes;
heat pipe part creation and assembly module: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, and assembling the heat pipe part models into the heat pipe assembly model in a superposition assembly mode with the heat pipe part models and the cabin heat pipe layout framework model;
the heat pipe pipeline collecting module: leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model;
the heat pipe section model selection module: taking the central line of the heat pipe arrangement in the heat pipe part model as a reference axis of the scanning characteristic, selecting a corresponding heat pipe type spectrum from a heat pipe section library, and creating the heat pipe part characteristic;
creating a heat pipe adaptivity creating module: the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode;
the thermal control subsystem three-dimensional layout model is a three-dimensional model for layout development of the thermal control subsystem and is used for developing three-dimensional layout design of the thermal control subsystem;
the cabin plate heat pipe layout skeleton model is a special skeleton model for top layer definition in the top-down analysis algorithm design process of the heat pipe, and the arrangement center line of the heat pipe is defined;
the heat pipe part model is as follows: a heat pipe part model is created according to the number of the heat pipes;
the heat pipe assembly model: the assembly model is composed of the heat pipe and the heat pipe accessories;
the heat pipe section library comprises a type spectrum section library of the heat pipe, and the sections of the type spectrum are managed in a unified mode;
the heat pipe model includes a heat pipe assembly model and a heat pipe part model.
Preferably, the cabin component layout information in the heat pipe layout environment preparation module includes: floor layout component footprint information; the cabin board connection layout information comprises cabin board connection embedded part footprint information;
the deck plate heat pipe line layout module comprises: the method comprises the steps of establishing a prt-format cabin plate heat pipe layout framework model in a three-dimensional layout model of a thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to cabin plate element layout information and cabin plate connection layout information, representing the center line of embedded heat pipe arrangement, and establishing a heat pipe installation reference coordinate system at the top point of a pipeline.
Preferably, the heat pipe part creation and assembly module includes: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, creating neutral plane reference coordinates with the offset distance being the plate thickness of the satellite honeycomb sandwich plate and the preset value through a default coordinate system in the heat pipe part models, introducing corresponding pipelines in the cabin heat pipe layout framework model into the heat pipe part models in a data sharing mode, and assembling the heat pipe part models into the heat pipe assembly model in a mode that the neutral plane reference coordinates are overlapped with a heat pipe installation reference coordinate system in the cabin heat pipe layout framework model.
Preferably, the heat pipe line collecting module includes: and guiding the central line of the heat pipe arrangement in the cabin heat pipe layout framework model into the corresponding heat pipe part model by copying the geometry, and defining the central line of the heat pipe to the default coordinate system in the heat pipe part model through the default coordinate system in the heat pipe part model.
Preferably, the heat pipe cross-section shape selecting module comprises: creating a scanning characteristic and/or a variable cross-section scanning characteristic, taking a central line of heat pipe arrangement led into a heat pipe part model as a scanning track, and selecting a model from a heat pipe cross-section library;
the create heat pipe autoaptability creation module: by modifying the pipeline geometric drive size parameter and the position drive size parameter in the deck heat pipe layout framework model, the heat pipe model responds to the update of the configuration and the installation position in a self-adaptive manner.
Compared with the prior art, the invention has the following beneficial effects:
1. different from the heat pipe which is firstly modeled and then assembled, the heat pipe is drawn on the basis of the reference footprint information by adopting a mode of sketching the center line of the heat pipe through a top-down design idea without changing the design flow of the heat pipe, so that the heat pipe is in accordance with the design idea of the heat pipe;
2. the geometric configurations of the pipelines and the heat pipe parts in the heat pipe framework can fundamentally realize the establishment and the update of the driving three-dimensional model, and the influence of human factors in the modeling process is avoided;
3. the coordinate system is adopted for matching and assembling, so that the assembling relation is simple, the possibility of model regeneration failure caused by reference disorder is avoided, and a correct and effective updating basis is provided for subsequent design change;
4. the heat pipe model can be automatically updated according to the addition and deletion of the number of the bent parts sketched, and model regeneration or position errors can not be caused;
5. by adopting the method, a management mechanism can be effectively unified, and the influence from the beginning of design to the final completion of change is influenced; the design method of the pre-buried heat pipe of the satellite is more standard; the design efficiency of the whole embedded heat pipe is improved;
drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a flow chart of a top-down three-dimensional design method for a pre-buried heat pipe of a satellite.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The invention mainly solves the problems of complicated heat pipe design flow, large heat pipe adjustment workload, assembly design normalization, difficult product change and update and the like when a design mode of two-dimensional graph design-three-dimensional model modeling assembly is converted into a full three-dimensional design mode based on a three-dimensional model in the process of developing the three-dimensional design of the pre-buried heat pipe of the satellite. By driving the position and the outline of the heat pipe model by the heat pipe central line in the skeleton model, the similar heat pipe can be adaptively created and updated, and the independence and the stability of the heat pipe three-dimensional model are ensured.
The invention provides a top-down three-dimensional layout method for a pre-buried heat pipe of a satellite, which comprises the following steps:
heat pipe layout environment preparation: collecting cabin board element layout information and cabin board connection layout information in a three-dimensional layout model of a thermal control subsystem;
a cabin plate heat pipe pipeline layout step: establishing a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to collected cabin plate element layout information and cabin plate connection layout information, and presetting a central line for representing the arrangement of the embedded heat pipes;
the heat pipe part creating and assembling steps are as follows: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, and assembling the heat pipe part models into the heat pipe assembly model in a superposition assembly mode with the heat pipe part models and the cabin heat pipe layout framework model;
collecting the heat pipe pipelines: leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model;
the section selection step of the heat pipe: taking the central line of the heat pipe arrangement in the heat pipe part model as a reference axis of the scanning characteristic, selecting a corresponding heat pipe type spectrum from a heat pipe section library, and creating the heat pipe part characteristic;
creating a heat pipe self-adaptability creating step: the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode;
the thermal control subsystem three-dimensional layout model is a three-dimensional model for layout development of the thermal control subsystem and is used for developing three-dimensional layout design of the thermal control subsystem;
the cabin plate heat pipe layout skeleton model is a special skeleton model for top layer definition in the top-down analysis algorithm design process of the heat pipe, and the arrangement center line of the heat pipe is defined;
the heat pipe part model is as follows: a heat pipe part model is created according to the number of the heat pipes;
the heat pipe assembly model: the assembly model is composed of the heat pipe and the heat pipe accessories;
the heat pipe section library comprises a type spectrum section library of the heat pipe, and the sections of the type spectrum are managed in a unified mode;
the heat pipe model includes a heat pipe assembly model and a heat pipe part model. The heat pipe part features are actually features inside the heat pipe part, and the features are basic elements forming the three-dimensional model.
Specifically, the cabin component layout information in the heat pipe layout environment preparation step includes: floor layout component footprint information; the cabin board connection layout information comprises cabin board connection embedded part footprint information;
the layout steps of the cabin plate heat pipe pipeline comprise: the method comprises the steps of establishing a prt-format cabin plate heat pipe layout framework model in a three-dimensional layout model of a thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to cabin plate element layout information and cabin plate connection layout information, representing the center line of embedded heat pipe arrangement, and establishing a heat pipe installation reference coordinate system at the top point of a pipeline. The central line of the heat pipe is a sketch or curve characteristic in the heat pipe part model, and the central line is a scanning track line of the heat pipe;
specifically, the heat pipe part creating and assembling step includes: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, creating neutral plane reference coordinates with the offset distance being the plate thickness of the satellite honeycomb sandwich plate and the preset value through a default coordinate system in the heat pipe part models, introducing corresponding pipelines in the cabin heat pipe layout framework model into the heat pipe part models in a data sharing mode, and assembling the heat pipe part models into the heat pipe assembly model in a mode that the neutral plane reference coordinates are overlapped with a heat pipe installation reference coordinate system in the cabin heat pipe layout framework model. The number of heat pipes drives the number of models of heat pipe parts, and if the number of heat pipes is 4, 4 models of heat pipe parts need to be created respectively. The neutral plane reference coordinate is a coordinate system on the neutral plane of the heat pipe, and the heat pipe is installed by taking the coordinate system as a reference;
specifically, the heat pipe line collecting step includes: guiding the central line of the heat pipe arrangement in the cabin heat pipe layout framework model into the corresponding heat pipe part model by copying the geometry, and defining the central line of the heat pipe to the default coordinate system in the heat pipe part model by the assembly form of the coincidence of the default coordinate systems in the heat pipe part model; and a default coordinate system is used to ensure the stability of model assembly and reduce the content of repair when the reference is lost. The assembly form is an assembly form of Pro/E when assembling the external copy set. The default coordinate system of the heat pipe part model is coincided with the heat pipe installation coordinate system in the framework model, and the difference from the previous strip is that the previous strip is assembled with the part model, and the previous strip is assembled with the external replication geometric characteristic.
Specifically, the heat pipe section shape selection step comprises the following steps: creating a scanning characteristic and/or a variable cross-section scanning characteristic, taking a central line of heat pipe arrangement led into a heat pipe part model as a scanning track, and selecting a model from a heat pipe cross-section library;
the creating heat pipe self-adaptive creating step comprises the following steps: by modifying the pipeline geometric driving size parameter and the position driving size parameter in the cabin plate heat pipe layout framework model, the heat pipe model responds to the updating of the configuration and the installation position in a self-adaptive mode according to the neutral surface reference coordinate system.
The invention provides a top-down three-dimensional layout system for embedded heat pipes of satellites, which comprises:
a heat pipe layout environment preparation module: collecting cabin board element layout information and cabin board connection layout information in a three-dimensional layout model of a thermal control subsystem;
cabin board heat pipe pipeline layout module: establishing a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to collected cabin plate element layout information and cabin plate connection layout information, and presetting a central line for representing the arrangement of the embedded heat pipes;
heat pipe part creation and assembly module: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, and assembling the heat pipe part models into the heat pipe assembly model in a superposition assembly mode with the heat pipe part models and the cabin heat pipe layout framework model;
the heat pipe pipeline collecting module: leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model;
the heat pipe section model selection module: taking the central line of the heat pipe arrangement in the heat pipe part model as a reference axis of the scanning characteristic, selecting a corresponding heat pipe type spectrum from a heat pipe section library, and creating the heat pipe part characteristic;
creating a heat pipe adaptivity creating module: the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode;
the thermal control subsystem three-dimensional layout model is a three-dimensional model for layout development of the thermal control subsystem and is used for developing three-dimensional layout design of the thermal control subsystem;
the cabin plate heat pipe layout skeleton model is a special skeleton model for top layer definition in the top-down analysis algorithm design process of the heat pipe, and the arrangement center line of the heat pipe is defined;
the heat pipe part model is as follows: a heat pipe part model is created according to the number of the heat pipes;
the heat pipe assembly model: the assembly model is composed of the heat pipe and the heat pipe accessories;
the heat pipe section library comprises a type spectrum section library of the heat pipe, and the sections of the type spectrum are managed in a unified mode;
the heat pipe model includes a heat pipe assembly model and a heat pipe part model. The heat pipe part features are actually features inside the heat pipe part, and the features are basic elements forming the three-dimensional model.
Specifically, the cabin plate component layout information in the heat pipe layout environment preparation module includes: floor layout component footprint information; the cabin board connection layout information comprises cabin board connection embedded part footprint information;
the deck plate heat pipe line layout module comprises: the method comprises the steps of establishing a prt-format cabin plate heat pipe layout framework model in a three-dimensional layout model of a thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to cabin plate element layout information and cabin plate connection layout information, representing the center line of embedded heat pipe arrangement, and establishing a heat pipe installation reference coordinate system at the top point of a pipeline. The central line of the heat pipe is a sketch or curve characteristic in the heat pipe part model, and the central line is a scanning track line of the heat pipe;
specifically, the heat pipe part creation and assembly module includes: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, creating neutral plane reference coordinates with the offset distance being the plate thickness of the satellite honeycomb sandwich plate and the preset value through a default coordinate system in the heat pipe part models, introducing corresponding pipelines in the cabin heat pipe layout framework model into the heat pipe part models in a data sharing mode, and assembling the heat pipe part models into the heat pipe assembly model in a mode that the neutral plane reference coordinates are overlapped with a heat pipe installation reference coordinate system in the cabin heat pipe layout framework model. The number of heat pipes drives the number of models of heat pipe parts, and if the number of heat pipes is 4, 4 models of heat pipe parts need to be created respectively. The neutral plane reference coordinate is a coordinate system on the neutral plane of the heat pipe, and the heat pipe is installed by taking the coordinate system as a reference;
specifically, the heat pipe line collection module includes: guiding the central line of the heat pipe arrangement in the cabin heat pipe layout framework model into the corresponding heat pipe part model by copying the geometry, and defining the central line of the heat pipe to the default coordinate system in the heat pipe part model by the assembly form of the coincidence of the default coordinate systems in the heat pipe part model; and a default coordinate system is used to ensure the stability of model assembly and reduce the content of repair when the reference is lost. The assembly form is an assembly form of Pro/E when assembling the external copy set. The default coordinate system of the heat pipe part model is coincided with the heat pipe installation coordinate system in the framework model, and the difference from the previous strip is that the previous strip is assembled with the part model, and the previous strip is assembled with the external replication geometric characteristic.
Specifically, the heat pipe cross section model selection module comprises: creating a scanning characteristic and/or a variable cross-section scanning characteristic, taking a central line of heat pipe arrangement led into a heat pipe part model as a scanning track, and selecting a model from a heat pipe cross-section library;
the create heat pipe autoaptability creation module: by modifying the pipeline geometric driving size parameter and the position driving size parameter in the cabin plate heat pipe layout framework model, the heat pipe model responds to the updating of the configuration and the installation position in a self-adaptive mode according to the neutral surface reference coordinate system.
The following specific examples further illustrate the invention:
assembling a cabin board layout element footprint framework and a cabin board connecting embedded part footprint framework in a thermal control cabin board assembly model; creating a heat pipe framework in the thermal control cabin plate assembly model, activating the framework model to develop the cabin plate heat pipe pipeline design, and creating an installation coordinate system of heat pipe parts at the pipeline vertex of each heat pipe; establishing a heat pipe part model and assembling the heat pipe part model into a thermal control cabin plate assembly model in a coordinate system overlapping mode; establishing a reference coordinate system positioned at a neutral surface of the heat pipe in the heat pipe part model, and introducing corresponding heat pipe pipelines in a heat pipe framework in a form of shared data; selecting the type from the heat pipe section library by taking the introduced heat pipe pipeline as a scanning track to complete the creation of the heat pipe; when the geometric configuration or position of the pipeline in the heat pipe framework is changed, the heat pipe part model responds to the change in a self-adaptive mode. The specific implementation steps are as follows:
1) assembling the footprint frameworks of the cabin board layout elements and the footprint frameworks of the cabin board connecting embedded part embedded parts into the thermal control cabin board assembly model in a default assembling mode;
2) creating a heat pipe framework in the thermal control cabin plate assembly model, or directly using the thermal control cabin plate framework model, activating the framework model, taking footprint information as a design environment reference, developing the cabin plate heat pipe pipeline design by using sketch characteristics, and creating an installation coordinate system of a heat pipe part at the pipeline vertex of each heat pipe;
3) establishing a heat pipe part model and assembling the heat pipe part model into a thermal control cabin plate assembly model in a coordinate system overlapping mode;
4) establishing a reference coordinate system positioned at a neutral surface of the heat pipe in the heat pipe part model, and introducing corresponding heat pipe pipelines in a heat pipe framework in a form of shared data; selecting the type from the heat pipe section library by taking the introduced heat pipe pipeline as a scanning track to complete the creation of the heat pipe;
5) the method comprises the following steps of taking a guided heat pipe pipeline as a scanning track, selecting a type from a heat pipe section library, and completing the establishment of a heat pipe geometric body through a scanning characteristic or a variable section scanning characteristic;
6) when the geometric configuration or position of the pipeline in the heat pipe framework is changed, the heat pipe part model responds to the change in a self-adaptive mode.
1. Assembly deck footprint framework model
In the embodiment, the footprint framework of the satellite cabin plate is divided into an equipment footprint framework, a pipeline support footprint framework and a cable support footprint framework, and the cabin plate is connected with the footprint framework and assembled into a thermal control subsystem cabin plate assembly model in a default assembly mode;
2. creating a deck plate heat pipe framework to complete heat pipe line design
In the embodiment, a thermal control cabin plate framework model is used as a heat pipe framework, the framework is activated, sketch features are created, a cabin plate plane is used as a sketch plane, the side face of the cabin plate is used as a direction plane, pipeline design of 2 straight heat pipes and 2 bent heat pipes is completed through a straight line command, and a heat pipe installation reference coordinate with a Z axis perpendicular to the cabin plate plane and an X axis facing to the pipeline direction is created at the top point of a reference pipeline;
3. creating a heat pipe part model and assembling to a deck plate assembly model
In the embodiment, 4 heat pipe part models are respectively created, and the default coordinate system of the thermal control part is coincided with the corresponding heat pipe installation reference coordinate system in the cabin plate framework through the assembly form of coordinate system coincidence, so that the assembly of the heat pipe part is completed; .
4. Heat pipe neutral surface reference coordinate system definition
In the embodiment, in the heat pipe part model, a heat pipe neutral plane reference coordinate system is created by referring to a default coordinate system, the coordinate system is shifted to the-Z direction by the offset distance of the plate thickness multiplied by 0.5, and corresponding pipelines in the cabin plate framework are collected into the cabin plate model by copying geometrical characteristics, and the pipelines are placed in a mode that the installation reference coordinate system and the neutral plane reference coordinate system are overlapped;
5. heat pipe part physical creation
In the embodiment, a pipeline in the external copy geometric feature is selected as a scanning track through the variable profile scanning feature, and after the cross section of the heat pipe enters the sketch, the creation of the geometric body of the heat pipe part is completed through selecting the cross section of the heat pipe in the tab corresponding to the palette;
6. adaptive updating of heat pipes
In this embodiment, the heat pipe product is adapted to complete the assembly and geometry update by modifying the length of the pipeline, the bend radius, adding bends, and modifying the heat pipe position in the sketched features in the deck slab framework.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. A top-down three-dimensional layout method for a pre-buried heat pipe of a satellite is characterized by comprising the following steps:
heat pipe layout environment preparation: collecting cabin board element layout information and cabin board connection layout information in a three-dimensional layout model of a thermal control subsystem;
a cabin plate heat pipe pipeline layout step: establishing a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to collected cabin plate element layout information and cabin plate connection layout information, and presetting a central line for representing the arrangement of the embedded heat pipes;
the heat pipe part creating and assembling steps are as follows: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, and assembling the heat pipe part models into the heat pipe assembly model in a superposition assembly mode with the heat pipe part models and the cabin heat pipe layout framework model;
collecting the heat pipe pipelines: leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model;
the section selection step of the heat pipe: taking the central line of the heat pipe arrangement in the heat pipe part model as a reference axis of the scanning characteristic, selecting a corresponding heat pipe type spectrum from a heat pipe section library, and creating the heat pipe part characteristic;
creating a heat pipe self-adaptability creating step: the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode;
the thermal control subsystem three-dimensional layout model is a three-dimensional model for layout development of the thermal control subsystem and is used for developing three-dimensional layout design of the thermal control subsystem;
the cabin plate heat pipe layout skeleton model is a special skeleton model for top layer definition in the top-down analysis algorithm design process of the heat pipe, and the arrangement center line of the heat pipe is defined;
the heat pipe part model is created according to the number of the heat pipes;
the heat pipe component model is an assembly model consisting of a heat pipe and a heat pipe accessory;
the heat pipe section library comprises a type spectrum section library of the heat pipe, and the sections of the type spectrum are managed in a unified mode;
the heat pipe model comprises a heat pipe assembly model and a heat pipe part model;
the heat pipe part creating and assembling step comprises the following steps: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, creating neutral plane reference coordinates with the offset distance being the plate thickness of the satellite honeycomb sandwich plate and the preset value through a default coordinate system in the heat pipe part models, introducing corresponding pipelines in the cabin heat pipe layout framework model into the heat pipe part models in a data sharing mode, and assembling the heat pipe part models into the heat pipe assembly model in a mode that the neutral plane reference coordinates are overlapped with a heat pipe installation reference coordinate system in the cabin heat pipe layout framework model.
2. The top-down three-dimensional layout method for the pre-buried heat pipes of the satellite according to claim 1, wherein the cabin board component layout information in the heat pipe layout environment preparation step includes: floor layout component footprint information; the cabin board connection layout information comprises cabin board connection embedded part footprint information;
the layout steps of the cabin plate heat pipe pipeline comprise: the method comprises the steps of establishing a prt-format cabin plate heat pipe layout framework model in a three-dimensional layout model of a thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to cabin plate element layout information and cabin plate connection layout information, representing the center line of embedded heat pipe arrangement, and establishing a heat pipe installation reference coordinate system at the top point of a pipeline.
3. The top-down three-dimensional layout method for the pre-buried heat pipes of the satellite according to claim 1, wherein the heat pipe line collecting step comprises: and guiding the central line of the heat pipe arrangement in the cabin heat pipe layout framework model into the corresponding heat pipe part model by copying the geometry, and defining the central line of the heat pipe to the default coordinate system in the heat pipe part model through the default coordinate system in the heat pipe part model.
4. The top-down three-dimensional layout method for the pre-buried heat pipes of the satellite according to claim 1, wherein the heat pipe section shape selection step comprises: creating a scanning characteristic and/or a variable cross-section scanning characteristic, taking a central line of heat pipe arrangement led into a heat pipe part model as a scanning track, and selecting a model from a heat pipe cross-section library;
the creating heat pipe self-adaptive creating step comprises the following steps: by modifying the pipeline geometric drive size parameter and the position drive size parameter in the deck heat pipe layout framework model, the heat pipe model responds to the update of the configuration and the installation position in a self-adaptive manner.
5. The utility model provides a three-dimensional overall arrangement system from top to bottom to pre-buried heat pipe of satellite which characterized in that includes:
a heat pipe layout environment preparation module: collecting cabin board element layout information and cabin board connection layout information in a three-dimensional layout model of a thermal control subsystem;
cabin board heat pipe pipeline layout module: establishing a cabin plate heat pipe layout framework model according to the three-dimensional layout model of the thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to collected cabin plate element layout information and cabin plate connection layout information, and presetting a central line for representing the arrangement of the embedded heat pipes;
heat pipe part creation and assembly module: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, and assembling the heat pipe part models into the heat pipe assembly model in a superposition assembly mode with the heat pipe part models and the cabin heat pipe layout framework model;
the heat pipe pipeline collecting module: leading the central line of the heat pipe arrangement in the cabin plate heat pipe layout framework model into the corresponding heat pipe part model;
the heat pipe section model selection module: taking the central line of the heat pipe arrangement in the heat pipe part model as a reference axis of the scanning characteristic, selecting a corresponding heat pipe type spectrum from a heat pipe section library, and creating the heat pipe part characteristic;
creating a heat pipe adaptivity creating module: the geometric description size and the positioning size of a center line are modified in the cabin plate heat pipe layout framework model, and the heat pipe model is updated and responded in a self-adaptive mode;
the thermal control subsystem three-dimensional layout model is a three-dimensional model for layout development of the thermal control subsystem and is used for developing three-dimensional layout design of the thermal control subsystem;
the cabin plate heat pipe layout skeleton model is a special skeleton model for top layer definition in the top-down analysis algorithm design process of the heat pipe, and the arrangement center line of the heat pipe is defined;
the heat pipe part model is created according to the number of the heat pipes;
the heat pipe component model is an assembly model consisting of a heat pipe and a heat pipe accessory;
the heat pipe section library comprises a type spectrum section library of the heat pipe, and the sections of the type spectrum are managed in a unified mode;
the heat pipe model comprises a heat pipe assembly model and a heat pipe part model;
the heat pipe part creation and assembly module includes: respectively creating corresponding heat pipe part models according to the number of preset heat pipes in the cabin heat pipe layout framework model, creating neutral plane reference coordinates with the offset distance being the plate thickness of the satellite honeycomb sandwich plate and the preset value through a default coordinate system in the heat pipe part models, introducing corresponding pipelines in the cabin heat pipe layout framework model into the heat pipe part models in a data sharing mode, and assembling the heat pipe part models into the heat pipe assembly model in a mode that the neutral plane reference coordinates are overlapped with a heat pipe installation reference coordinate system in the cabin heat pipe layout framework model.
6. The top-down three-dimensional layout system for the pre-buried heat pipes of the satellite according to claim 5, wherein the layout information of the cabin board elements in the heat pipe layout environment preparation module comprises: floor layout component footprint information; the cabin board connection layout information comprises cabin board connection embedded part footprint information;
the deck plate heat pipe line layout module comprises: the method comprises the steps of establishing a prt-format cabin plate heat pipe layout framework model in a three-dimensional layout model of a thermal control subsystem, arranging heat pipes in the cabin plate heat pipe layout framework model according to cabin plate element layout information and cabin plate connection layout information, representing the center line of embedded heat pipe arrangement, and establishing a heat pipe installation reference coordinate system at the top point of a pipeline.
7. The top-down three-dimensional layout system for the pre-buried heat pipes of the satellite according to claim 5, wherein the heat pipe line collection module comprises: and guiding the central line of the heat pipe arrangement in the cabin heat pipe layout framework model into the corresponding heat pipe part model by copying the geometry, and defining the central line of the heat pipe to the default coordinate system in the heat pipe part model through the default coordinate system in the heat pipe part model.
8. The top-down three-dimensional layout system for the pre-buried heat pipes of the satellite according to claim 5, wherein the heat pipe section shape selection module comprises: creating a scanning characteristic and/or a variable cross-section scanning characteristic, taking a central line of heat pipe arrangement led into a heat pipe part model as a scanning track, and selecting a model from a heat pipe cross-section library;
the create heat pipe autoaptability creation module: by modifying the pipeline geometric drive size parameter and the position drive size parameter in the deck heat pipe layout framework model, the heat pipe model responds to the update of the configuration and the installation position in a self-adaptive manner.
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