CN107229794A - A kind of CAE and VR model construction system and its management method - Google Patents
A kind of CAE and VR model construction system and its management method Download PDFInfo
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- CN107229794A CN107229794A CN201710392094.5A CN201710392094A CN107229794A CN 107229794 A CN107229794 A CN 107229794A CN 201710392094 A CN201710392094 A CN 201710392094A CN 107229794 A CN107229794 A CN 107229794A
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Abstract
The invention discloses a kind of CAE and VR model construction system and its management method, including CAE mechanical models, data exchange module, VR interactive displays equipment and model editing module, designer transfers visualization data corresponding with CAE mechanical models by VR interactive display equipment, parameter modification is carried out by model editing module, the corresponding data that visualize of amended parameter are fed back in CAE mechanical models by data exchange module.Model construction system and its structure management method of the present invention based on CAE and VR, can be by the force-bearing situation of CAE models, being showed by way of virtual reality is easy to designer to optimize model, designer is created or changed to model by model editing module according to engineering actual demand, it is set to meet requirement of engineering, mistake during modeling is reduced, operating efficiency is improved.
Description
Technical field
The present invention relates to CAE model constructions field, more particularly to a kind of CAE and VR model construction system and its manager
Method.
Background technology
With advancing by leaps and bounds for computer and information technology, CAE institute's roles in Corporation R ＆ D are more and more important.
Each stage of product design has gradually been dissolved into digitlization research and development by core of digital prototype collaborative design technology.Count at present
Value research and development technology, which is just emulated from single subject to multidisciplinary, subsystem irrespective of size to system integration project, module level, isolates design to system
The collaborative design development of level knowledge fusion.For the exploitation of complex product, with greater need for the application of collaborative design.
With the continuous lifting of engineering complexity, model also becomes increasingly complex, and the thing followed is modeling difficulty not
It is disconnected to improve, cause cost to increase, because the complicated conventional modeling technique of model is increasingly difficult in adapt to carrying for engineering complexity
The requirement of liter and model accuracy, is difficult to think during modeling especially for some hidden positions of the more complicated model of structure
As its specific space structure, often lead to mistake occur, cause result of calculation mistake.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of based on CAE and VR model construction system and its management
Method, the systems and management method can by the force-bearing situation of CAE models by virtual reality by way of show just
Model is optimized in designer, it is met being actually needed for engineering, mistake during modeling is reduced, work effect is improved
Rate.
A kind of CAE and VR model construction system, is specifically included：
CAE mechanical models, the CAE mechanical models are that three-dimensional building letter is set up in BIM systems according to CAD design drawing
Cease model, the CAE Mechanics Simulation models obtained after being then reconstructed by lattice simplified system；
Data exchange module, the data exchange module internal memory contains CAE mechanical models and supplies VR interactive display equipment
Transfer visualization data corresponding with CAE mechanical models；
VR interactive display equipment, the VR interactive displays equipment is transferred and CAE mechanical models pair from data exchange module
The visualization data answered, and show in the way of virtual reality design effect；
Model editing module, designer transfers visualization corresponding with CAE mechanical models by VR interactive display equipment
Data, parameter modification is carried out by model editing module, and the corresponding data that visualize of amended parameter pass through data exchange mould
Block is fed back in CAE mechanical models.
Preferably, the CAE mechanical models include parameter corresponding with model and visualization data corresponding with model.
Preferably, the lattice simplified system includes model filter module, obtains component geometric data module, obtains structure
Part material parameter module, grid reconstruction module and data transmission module；
Model filter module, the agent structure in BIM BIMs for stress such as beam, post, load bearing walls is filtered
Out；
Obtain component geometric data module, after by model filter, automatically to the component extraction in agent structure its
Three-dimensional geometry parameter；
Obtain construction material parameter module, after by model filter, automatically to the component extraction in agent structure its
Material parameter information；
Grid reconstruction module, carries out grid reconstruction, to adapt to CAE mechanics to original grid in BIM BIMs
Emulation；
Real-time Data Transmission module, will by real-time Data Transmission module when having Parameters variation in BIM BIMs
Information transfer is changed into lattice simplified system, lattice simplified system re-starts calculating to BIM information models, finally given new
CAE Mechanics Simulation models, after model mechanics emulated, obtained mechanical information will be calculated and fed back in BIM information models
Show.
Preferably, the data exchange module includes format converting module, CAE model conversations are by format converting module
Virtual reality components can be added, the Format Type of Virtual Realization is realized.
Preferably, the VR interactive displays equipment is provided with data transformation interface, the data transformation interface and data
Switching Module is connected, transferred by data transformation interface from data exchange module it is corresponding with CAE Mechanics Simulation models can
Depending on changing data.
The embodiment of the present invention also provides a kind of reconstructing method based on lattice simplified system, specifically includes following steps：
A, lattice simplified system pass through real-time Data Transmission module calls BIM BIMs；
B, major structure of construction model obtained by model filter modular filtration；
C, obtain component geometric data module, automatic component extraction its three-dimensional geometric parameter obtained in agent structure；
D, obtain construction material parameter module, automatic component extraction its material parameter obtained in agent structure；
E, by grid reconstruction module to BIM build the original grid of 3-D geometric model be reconstructed；
F, lattice simplified system will enter the model importing CAE that above-mentioned steps processing is obtained by real-time Data Transmission module
Middle carry out Mechanics Simulation.
The embodiment of the present invention also provides a kind of construction method based on CAE mechanical models, specifically includes following steps：
1) BIM building 3-D geometric models are reconstructed by lattice simplified system, by the BIM threedimensional models after simplification
Import CAE Mechanics Simulation systems；
2) data message in BIM information model systems is extracted, by judging the attribute for changing information, will be influenceed
The data of Mechanics Simulation send CAE Mechanics Simulation systems to, and drive CAE Mechanics Simulation system updates；
3) mechanical information for obtaining the CAE Mechanics Simulation models after renewal feeds back to BIM information models, and will calculate
To mechanical information shown from BIM information models.
The embodiment of the present invention also provides a kind of structure management method of the model construction system based on CAE and VR, specific bag
Include following steps：
S1, designer are modeled in computer, then carry out Mechanics Simulation, after the completion of calculating, and designer is by mould
Type sends to data exchange module and stored, wherein, model includes parameter corresponding with model and corresponding with model visual
Change data；
S2, client transfer visualization data corresponding with model by VR interactive displays equipment to data exchange module, with
The force-bearing situation of whole model, the change seen after model stress on the spot in person are presented to designer for the mode of virtual reality
Change, find the overall stress of model, strain maximum point, real-time optimization is carried out to existing structure.
S3, designer the stress maximum in model editing module is to model are optimized, by VR interactive devices, will
The parameter to be changed is transferred to data exchange module, is then fed back to by data exchange module in CAE, while model is joined in CAE
Number is corresponding to be changed, and then carries out Mechanics Simulation, the model retrieved and visualisation parameters finally are passed through into VR interactive displays
Equipment is shown for designer's reference.
Preferably, repeating S2~S3 if amended CAE mechanical models stressing conditions are unsatisfactory for requirement of engineering, directly
To the structure for meeting the final CAE mechanical models of design requirement completion.
The present invention has the advantages that compared with prior art：
1st, model construction system and its structure management method of the present invention based on CAE and VR, can be by CAE models
Force-bearing situation, showed by way of virtual reality and be easy to designer to optimize model, designer according to
Engineering actual demand is created or changed to model by model editing module, it is met requirement of engineering, when reducing modeling
Mistake, improve operating efficiency.
2nd, the present invention realizes the interaction of client and virtual reality, retrieve for examination, changes relevant materials and component it is more comprehensive and
Truly, while CAE mechanical model information is quickly introduced into VR virtual reality systems, realize that client is on the spot in person and experience building interior
Structure, the operation such as parameter information inquiry and modification parameter is carried out by VR interactive displays equipment.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of CAE of the present invention and VR model construction system；
Fig. 2 is the composition schematic diagram of lattice simplified system of the present invention；
Fig. 3 is the schematic diagram of the reconstructing method of the invention based on lattice simplified system；
Fig. 4 is the process chart of the construction method of the model construction service system of the invention based on CAE and VR；
Fig. 5 is structural representation of the CAE mechanical models of the present invention without lattice simplified system introducing into system；
Fig. 6 divides schematic diagram for the CAE mechanical models three-dimensional grid of the present invention viewed by VR interactive devices.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figures 1 to 6, the embodiment of the present invention provides a kind of CAE and VR model construction system, specifically includes with bottom
Point：CAE mechanical models, the CAE mechanical models are that three-dimensional building information mould is set up in BIM systems according to CAD design drawing
Type, the CAE Mechanics Simulation models obtained after being then reconstructed by lattice simplified system；Data exchange module, the data
Switching Module internal memory contains CAE mechanical models and transfers visualization corresponding with CAE mechanical models for VR interactive display equipment
Data；VR interactive display equipment, the VR interactive displays equipment is transferred corresponding with CAE mechanical models from data exchange module
Data are visualized, and show in the way of virtual reality design effect；Model editing module, designer interacts exhibition by VR
Show that equipment transfers visualization data corresponding with CAE mechanical models, parameter modification is carried out by model editing module, it is amended
The corresponding visualization data of parameter are fed back in CAE mechanical models by data exchange module.
Described CAE mechanical models are that three-dimensional building information is set up in BIM systems according to CAD design drawing in the present invention
Model, the CAE Mechanics Simulation models obtained after being then reconstructed by lattice simplified system, because existing BIM buildings are several
What model cannot be directly used to CAE Mechanics Simulations, because containing much build thin in BIM building 3-D geometric models
Information is saved, such as aperture, tiny groove, small boss, these information can cause very big influence for the grid of CAE systems, such as
It is not carried out simplifying processing, not only have a strong impact on the speed and precision of emulation, and local distortion's unit can cause to calculate knot
The significant errors of fruit, in addition mislead designer derive a wrong conclusion (Fig. 5 be without lattice simplified system introducing system CAE
Mechanical model).
As shown in Figure 2.The lattice simplified system includes model filter module, obtains component geometric data module, obtains
Construction material parameter module, grid reconstruction module and data transmission module；Wherein, the model filter module, due to being built in BIM
Build and the unwanted part of many Mechanics Simulations is contained in information model, so by model filter module by BIM architecture informations
Agent structure in model for stress such as beam, post, load bearing walls is filtered out, main in the embodiment of the present invention to be carried using Revit
Filtering function of the function exploitation of confession for model；The acquisition component geometric data module, after by model filter, automatically
It is main in the present embodiment to be read using Element.Geometry functions to its three-dimensional geometric parameter of the component extraction in agent structure
Take component geometric data；The acquisition construction material parameter module, after by model filter, automatically in agent structure
Its material parameter information of component extraction；The grid reconstruction module, grid is carried out to original grid in BIM BIMs
Reconstruct, to adapt to CAE Mechanics Simulations；The real-time Data Transmission module, when there is information parameter change in BIM BIMs
Change, information transfer will be changed into lattice simplified system by real-time Data Transmission module, lattice simplified system is to BIM information moulds
Type re-starts calculating, finally gives new CAE Mechanics Simulation models, after model mechanics emulation, the mechanics that calculating is obtained is believed
Breath, which is fed back in BIM information models, shows that (Fig. 6 is viewed after lattice simplified system by VR interactive devices
The structural representation that CAE mechanical models three-dimensional grid is divided).As the preferred of the present embodiment, the CAE mechanical models also include
Parameter corresponding with model and visualization data corresponding with model.
Shown in Figure 3, the embodiment of the present invention also provides a kind of reconstructing method based on lattice simplified system, specifically includes
Following steps：
A, lattice simplified system pass through real-time Data Transmission module calls BIM BIMs；
B, major structure of construction model obtained by model filter modular filtration；
C, obtain component geometric data module, automatic component extraction its three-dimensional geometric parameter obtained in agent structure；
D, obtain construction material parameter module, automatic component extraction its material parameter obtained in agent structure；
E, by grid reconstruction module to BIM build the original grid of 3-D geometric model be reconstructed；
F, lattice simplified system will enter the model importing CAE that above-mentioned steps processing is obtained by real-time Data Transmission module
Middle carry out Mechanics Simulation.
The embodiment of the present invention also provides a kind of structure side that CAE mechanical models are reconstructed based on lattice simplified system below
Method, specifically includes following steps：
1) BIM building 3-D geometric models are reconstructed by lattice simplified system, by the BIM threedimensional models after simplification
Import CAE Mechanics Simulation systems；
2) data message in BIM information model systems is extracted, by judging the attribute for changing information, will be influenceed
The data of Mechanics Simulation send CAE Mechanics Simulation systems to, and drive CAE Mechanics Simulation system updates；
3) mechanical information for obtaining the CAE Mechanics Simulation models after renewal feeds back to BIM information models, and will calculate
To mechanical information shown from BIM information models.
Be stored with CAE mechanical models in the data exchange module, there is the corresponding parameter of CAE mechanical models and CAE mechanics
The corresponding visualization data of model；Visualization data corresponding with CAE mechanical models are transferred for VR interactive display equipment, and are received
The modified visualization data corresponding with CAE mechanical models that VR interactive displays equipment is returned, and this is modified
It is corresponding with CAE mechanical models visualization data feedback into CAE mechanical models, meanwhile, data exchange module also include form
Modular converter, by CAE Mechanics Model Transformations for that can add virtual reality components, realizes the Format Type of Virtual Realization.
The VR interactive displays equipment is provided with data transformation interface (not indicated in figure), the data transformation interface and number
It is connected according to Switching Module, is transferred by data transformation interface from data exchange module corresponding with CAE mechanical models visual
Change data, and design effect is showed in the way of virtual reality, designer is actually needed to CAE power by concrete engineering
The visualization data for learning model are modified, and amended data are returned into data exchange module.
The model editing module 4, designer can be transferred corresponding with CAE mechanical models by VR interactive display equipment
Data are visualized, modified as needed to then VR interactive devices can be used to carry out the modification of parameter, the CAE mechanical models correspondence changed can
Fed back in CAE, calculated from newly, and in time pass through the visualization data after calculating by data exchange module depending on changing data
VR interactive display equipment is shown.
The embodiment of the present invention provides a kind of structure management method of the model construction system based on CAE and VR, including following
Step：
S1, designer are modeled in computer, then carry out Mechanics Simulation, after the completion of calculating, and designer is by mould
Type sends to data exchange module and stored, and model includes parameter corresponding with model and visualization number corresponding with model
According to；
S2, client transfer visualization data corresponding with model by VR interactive displays equipment to data exchange module, with
The force-bearing situation of whole model, the change seen after model stress on the spot in person are presented to designer for the mode of virtual reality
Change, while being easily found the overall stress of model, strain maximum point, real-time optimization is carried out to existing structure；
S3, the parameter that will be changed by VR interactive devices are transferred to data exchange module, then by data exchange module
Feed back in CAE, while model parameter accordingly changes in CAE, then carry out Mechanics Simulation, finally by the model retrieved with
And visualisation parameters are shown by VR interactive display equipment and referred to for designer.
In S4, step S3, if amended CAE mechanical models stressing conditions are unsatisfactory for requirement of engineering repeat S2~
S3, until meeting the structure that design requirement completes final CAE mechanical models.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of CAE and VR model construction system, it is characterised in that including：
CAE mechanical models, the CAE mechanical models are that three-dimensional building information mould is set up in BIM systems according to CAD design drawing
Type, the CAE Mechanics Simulation models obtained after being then reconstructed by lattice simplified system；
Data exchange module, the data exchange module internal memory contains CAE mechanical models and transferred for VR interactive display equipment
Visualization data corresponding with CAE mechanical models；
VR interactive display equipment, the VR interactive displays equipment is transferred corresponding with CAE mechanical models from data exchange module
Data are visualized, and show in the way of virtual reality design effect；
Model editing module, designer transfers visualization data corresponding with CAE mechanical models by VR interactive display equipment,
Parameter modification is carried out by model editing module, the corresponding data that visualize of amended parameter are fed back by data exchange module
Into CAE mechanical models.
2. the model construction system according to claim 1 based on CAE and VR, it is characterised in that：The CAE mechanical models
Including parameter corresponding with model and visualization data corresponding with model.
3. the model construction system according to claim 1 based on CAE and VR, it is characterised in that：The lattice simplified system
System includes model filter module, obtains component geometric data module, obtains construction material parameter module, grid reconstruction module sum
According to transport module；
Model filter module, will be filtered out in BIM BIMs for the agent structure of the stress such as beam, post, load bearing wall；
Component geometric data module is obtained, after by model filter, it is three-dimensional to the component extraction in agent structure automatically
Geometric parameter；
Construction material parameter module is obtained, after by model filter, automatically to its material of the component extraction in agent structure
Parameter information；
Grid reconstruction module, carries out grid reconstruction, to adapt to CAE Mechanics Simulations to original grid in BIM BIMs；
Real-time Data Transmission module, when having Parameters variation in BIM BIMs, will be changed by real-time Data Transmission module
Information transfer is into lattice simplified system, and lattice simplified system re-starts calculating to BIM information models, finally gives new
CAE Mechanics Simulation models, after model mechanics is emulated, the mechanical information that calculating is obtained, which is fed back in BIM information models, to be shown
Show to come.
4. the model construction system according to claim 1 based on CAE and VR, it is characterised in that：The data exchange mould
Block includes format converting module, and CAE model conversations for that can add virtual reality components, are realized Virtual Realization by format converting module
Format Type.
5. the model construction system according to claim 1 based on CAE and VR, it is characterised in that：The VR interactive displays
Equipment is provided with data transformation interface, and the data transformation interface is connected with data exchange module, passes through data transformation interface
Visualization data corresponding with CAE Mechanics Simulation models are transferred from data exchange module.
6. a kind of reconstructing method based on lattice simplified system according to claim 3, it is characterised in that including following step
Suddenly：
A, lattice simplified system pass through real-time Data Transmission module calls BIM BIMs；
B, major structure of construction model obtained by model filter modular filtration；
C, obtain component geometric data module, automatic component extraction its three-dimensional geometric parameter obtained in agent structure；
D, obtain construction material parameter module, automatic component extraction its material parameter obtained in agent structure；
E, by grid reconstruction module to BIM build the original grid of 3-D geometric model be reconstructed；
F, lattice simplified system will be entered to enter in the model importing CAE that above-mentioned steps processing is obtained by real-time Data Transmission module
Row Mechanics Simulation.
7. a kind of construction method based on CAE mechanical models according to potentiality require 1 to 5 any one, it is characterised in that bag
Include following steps：
1) BIM building 3-D geometric models are reconstructed by lattice simplified system, the BIM threedimensional models after simplification is imported
CAE Mechanics Simulation systems；
2) data message in BIM information model systems is extracted, by judging the attribute for changing information, mechanics will be influenceed
The data of emulation send CAE Mechanics Simulation systems to, and drive CAE Mechanics Simulation system updates；
3) mechanical information for obtaining the CAE Mechanics Simulation models after renewal feeds back to BIM information models, and will calculate what is obtained
Mechanical information is shown from BIM information models.
8. a kind of structure management method of the model construction system based on CAE and VR, it is characterised in that comprise the following steps：
S1, designer are modeled in computer, then carry out Mechanics Simulation, and after the completion of calculating, designer sends out model
Data exchange module is delivered to be stored, wherein, model includes parameter corresponding with model and visualization number corresponding with model
According to；
S2, client transfer visualization data corresponding with model by VR interactive displays equipment to data exchange module, with virtual
The force-bearing situation of whole model is presented to designer for the mode of reality, and the change seen after model stress on the spot in person is looked for
To the overall stress of model, strain maximum point, real-time optimization is carried out to existing structure.
S3, designer the stress maximum in model editing module is to model are optimized, and pass through VR interactive devices, Jiang Yaoxiu
The parameter changed is transferred to data exchange module, is then fed back to by data exchange module in CAE, while model parameter phase in CAE
It should change, then carry out Mechanics Simulation, the model retrieved and visualisation parameters are finally passed through into VR interactive display equipment
Show for designer's reference.
9. the model construction management method according to claim 8 based on CAE and VR, it is characterised in that：If after modification
CAE mechanical model stressing conditions be unsatisfactory for requirement of engineering and then repeat S2~S3, until meeting design requirement completes final CAE power
Learn the structure of model.
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| CN112230893A (en) * | 2020-10-16 | 2021-01-15 | 北京中船信息科技有限公司 | Ship manufacturing-oriented multi-industrial mechanism model one-stop construction system and method |
| CN114633850A (en) * | 2022-03-10 | 2022-06-17 | 上海交通大学 | Virtual visual reconstruction method for finite element model of ship structure |
| CN114655382A (en) * | 2022-04-13 | 2022-06-24 | 上海交通大学 | Virtual visualization system and method for ship structure dynamics analysis result |
| CN114655382B (en) * | 2022-04-13 | 2023-02-24 | 上海交通大学 | Virtual visualization system and method for ship structure dynamics analysis result |
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