CN115408706A - Digital twin model of aviation product and technical state two-way exchange method thereof - Google Patents
Digital twin model of aviation product and technical state two-way exchange method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of data packet exchange, and discloses a digital twin model of an aviation product and a technical state bidirectional exchange method thereof, which comprises the following steps of firstly, constructing a product structure tree according to a product structure list; designing or modifying a variable configuration unit output in a product structure tree; and hanging each characteristic model and each characteristic technical state on each level of nodes in the corresponding product structure tree to supplement or update the product structure tree. The invention selects the feature model and the technical state thereof to be exchanged in the product structure tree aiming at the cooperative content with the cooperative party, thereby not only reducing the data exchange amount, but also avoiding the defects of low exchange precision and low fault tolerance rate caused by packing and exchanging a large amount of data in the traditional data exchange. Meanwhile, corresponding characteristic models and technical states thereof are selectively exchanged according to cooperative contents, leakage of relevant technologies such as integral framework and assembly of products can be effectively prevented, and safety performance of data exchange is improved.
Description
Technical Field
The invention relates to the technical field of data packet exchange, in particular to a digital twin model of an aviation product and a technical state bidirectional exchange method thereof.
Background
In order to develop a digital design of an airplane, a helicopter, an engine and an airborne system, a digital twin model and the technical state thereof are rapidly exchanged between an original equipment manufacturer and a partner in the design stage, and the current international and general method is to visit a unified design environment or federal data exchange. Currently, aviation product development needs to realize digital twin of numerous partners and its technical state sharing through data exchange. However, the configuration units of large-scale aviation products are tens of thousands, parts are millions, the technical state attributes of the parts are hundreds, twin models and technical state information of the twin models need to be continuously and accurately exchanged within several years of dozens of partners, and the realization difficulty is very high. Therefore, the digital twin model and the technical state thereof face the problems of the bidirectional exchange technology, namely firstly, the information architecture of the exchange data packet, secondly, the attribute bidirectional accurate mapping, and finally, the key link inspection and control in the exchange process.
Currently, in the aviation manufacturing industry at home and abroad, the application of the digital twin is wide, the digital twin and the technical state exchange technology thereof are widely used, and the conventional data exchange methods include file-based exchange, data packet-based exchange and site-based synchronization:
1) File-based exchange: and the partner transmits the model file to the other party in an offline manner, and the other party transmits the designed or modified digital twin model and the technical state information in a compressed and packaged manner.
2) Site-based synchronization: each partner is an exchange site, and a multi-site Data Management system PDM (Product Data Management, PDM for short) or PLM (Product Lifecycle Management, PLM for short) system needs to deploy the same customized Data exchange environment, package site incremental Data at intervals, send the site incremental Data to the partner, and import the site by the partner.
The first method requires a large amount of manual operations to maintain the models and the technical states synchronously, and has low efficiency; the second method requires the construction of a PLM system and maintenance by professionals, which is very costly. The two methods have the common defects that data are packaged, output and input only from the perspective of information technology realization, model quality and technical state information are not concerned, errors contained in data packets are easy to mask, and twin models and technical state information of exchange are difficult to predict in advance in exchange. Due to the fact that the data volume is large, the technical state is complex, the problem that accurate exchange cannot be carried out by using a conventional exchange method often occurs, engineering problems are often traced, manual participation is large, efficiency is low, error rate is high, and troubleshooting period is long.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a digital twin model of an aviation product and a technical state bidirectional exchange method thereof, which have the advantages of data exchange quality control and the like and solve the problem of large workload of traditional data exchange manual inspection.
(II) technical scheme
In order to solve the technical problems, the invention provides the following technical scheme:
a bidirectional exchange method for the digital twin model of aviation product includes,
the method comprises the following steps: constructing a product structure tree according to the product structure list;
step two: designing or modifying a variable configuration unit output in a product structure tree;
hanging each characteristic model and each characteristic technical state on each level of nodes in the corresponding product structure tree to supplement or update the product structure tree;
step three: opening the variable configuration unit designed or modified in the step two;
step four: defining a characteristic model and characteristic technical state mapping content;
step five: performing quality gate check on the feature model needing mapping;
step six: performing quality gate check on the characteristic technical state needing mapping;
step seven: triggering an output mapping program to acquire a twin model and a twin technical state and generating a mapping log;
step eight: checking the output mapping log to judge whether the twin model and the twin technical state are successfully obtained;
step nine: a twin model output gate closing stamp is marked for tracing data exchange according to the twin model output gate closing stamp subsequently;
step ten: the twin technical state gate closing stamp is marked for tracing data exchange according to the twin technical state gate closing stamp;
step eleven: acquiring and outputting a variable configuration unit data packet comprising an output mapping log, a twin model and a twin technical state;
step twelve: and (6) ending.
Preferably, in the product structure tree, the variable configuration unit is designed or modified according to the digital twin model corresponding to each product development stage and the technical state corresponding to the digital twin model.
Preferably, the method for defining the feature model and the technical state mapping content comprises the following steps: selecting a corresponding node in the product structure tree according to the cooperation content of the partner so as to determine the node information to be sent; the node information comprises a characteristic model and a characteristic technical state;
the three-dimensional model specifically comprises a general layout model, a positioning skeleton model, an enveloping body model, a ground guarantee model, a space reservation model, a motion mechanism model, a dismounting track model, a grid computing model and a functional principle model; the two-dimensional model is a plan view of the feature model; the picture file and the PDF file are photos of the feature model and relevant text annotation documents.
The characteristic technical state is character annotation information of the characteristic model, and comprises a weight gravity center state, a quality characteristic technical state, a material characteristic technical state, a demand technical state and a airworthiness approval technical state.
Preferably, the quality gate-off check is performed on the feature model to be mapped in the following manner: and C, performing quality gate-off check on the feature model corresponding to the node selected in the step four, if the feature model passes the quality gate-off check, executing the step six, if the feature model does not pass the quality gate-off check, returning to the step two, and informing the OEM of modifying the corresponding error which causes the failure in the variable configuration unit.
Preferably, a quality gate-off check is performed on the feature technical state of the desired mapping, if so, step seven is performed, if not, step two is returned, and the OEM is notified to modify the corresponding fail-over error in the variable configuration unit.
Preferably, the twin model, twin state of the technology and method of obtaining the mapping log: and outputting the characteristic model and the characteristic technical state corresponding to the node selected in the fourth step in a mapping mode to form a twin model and a twin technical state, and simultaneously acquiring a log generated when the characteristic model and the characteristic technical state generated by the computer are mapped, wherein the log is recorded as an output mapping log.
Preferably, the specific operation of checking the output mapping log to determine whether the twin model and the twin technical state are successful is: if the state of the output mapping log is a successful state, representing that the twin model and the twin technical state are successfully obtained, and executing the ninth step; if not, judging the error type according to the content of the mapping log, and taking different measures according to the error type.
Preferably, if the error type is a program error caused by the BUG, executing the step twelve, and if the error type is a feature model quality gate or a feature technical state gate which cannot be checked out, or other errors of the feature technical state, returning to the step two;
wherein the program errors caused by the BUG include: when the program reads the model file, the network is interrupted, and when the program reads the database, the service of the database is suddenly stopped.
Preferably, the twinning model output gate closing stamp and the technical state gate closing stamp are implemented in the following manner: the trigger program automatically writes the word "the door closing identification matches" and a time stamp that passes the door closing check.
(III) advantageous effects
Compared with the prior art, the invention provides a digital twin model of an aviation product and a technical state bidirectional exchange method thereof, and the method has the following beneficial effects:
1. the invention selects the feature model and the technical state thereof to be exchanged in the product structure tree aiming at the cooperative content with the cooperative party so as to reduce the data exchange amount, avoids the defects of low exchange precision and low fault tolerance rate caused by packaging and exchanging a large amount of data in the traditional data exchange, and simultaneously selectively exchanges the corresponding feature model and the technical state thereof aiming at the cooperative content, can effectively prevent the leakage of the related technologies such as the integral framework, the assembly and the like of the product and improve the safety performance of data exchange.
2. According to the invention, in the data exchange process, the output and the input of invalid data are reduced by judging the characteristic model to be exchanged and the technical state of the characteristic model to be exchanged through the gate, so that the timeliness of data interaction is improved.
3. The invention carries out updating iteration in the product structure tree by putting the model and the technical state information thereof into the data packet and modifying the model by adopting a design tool, thereby reducing the construction cost of a supplier data management system.
Drawings
FIG. 1 is a twin model output flow of the present invention;
FIG. 2 is a twin model input flow of the present invention;
FIG. 3 is a method for building a product structure tree according to the present invention;
FIG. 4 is an aerospace product structure tree of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background of the invention, the prior art has shortcomings, and in order to solve the technical problems, the present application proposes a digital twin model of an aviation product and a method for bidirectionally exchanging technical states thereof.
Referring to fig. 1-4, a bidirectional exchange method for a digital twin model and a technical state thereof of an aviation product includes a twin model and a technical state output process thereof, and a twin model and a technical state input process thereof, wherein the output process is mainly used for converting a related feature model and a feature technical form into a twin model and a twin technical state in a mapping manner according to a cooperation content of an OEM (Original Equipment manufacturer, abbreviated as OEM) and a partner, and transmitting a data packet formed by files such as a mapping log generated in the mapping process, the twin model and the twin technical state to the partner; and the input process is mainly used for leading the twin model and the twin technical state in the data packet into the structure tree after quality inspection according to the output data packet so as to update and iterate the characteristic model and the characteristic technical state which are hung under the corresponding node in the structure tree.
In addition, it should be noted that the OEM forms a data package according to the output process, the partner imports the data package into the product structure tree of the partner according to the input process, the partner modifies the feature model and the feature technical state in the product structure tree thereof, and the output process forms an output data package, and the OEM imports the output data package into the product structure tree thereof according to the input process, so as to update and iterate the feature model and the feature technical state under the corresponding node in the structure tree.
The input process and the output process have similar working modes, and the specific modes of the output process and the input process are explained by taking the output process and the input process of the aviation product data as examples:
the twin characteristic model of the aviation product and the output mode of the technical state thereof are as follows:
the method comprises the following steps: constructing a product structure tree according to the product structure list;
(1) Acquiring product configuration structure levels, level relations, level names and component names contained in each level according to the product structure list;
(2) Acquiring an existing structural tree template, and filling the hierarchy names and the part names contained in each hierarchy into each node of the structural tree template according to the product configuration structure hierarchy and the hierarchy relation to obtain an initial structural tree;
(3) And hooking the characteristic model and the characteristic technical state corresponding to each node in the initial product configuration structure tree to obtain the product configuration structure tree.
Further, as shown in fig. 4, taking an aviation product as an example, the aviation product generally manages research and development configurations and data by using a product cluster layer, a configuration layer and a design layer, the configuration layer is a configuration unit decomposition structure of a tree structure, and the bottom of the configuration layer is a variable configuration unit which is a basic unit constituting the configuration of the aviation product;
an invariance configuration unit: the aeronautical products are composed of systems, each of which comprises a plurality of variable configuration units, wherein the variable configuration units comprise assembly parts, sub-assembly parts, standard parts, materials and twin expressions, and the twin expressions are character outlines of the assembly parts.
It should be noted that the first step is only a basic framework of the output flow and the input flow, and is not included in the specific steps of the input flow and the output flow.
Step two: designing or modifying a variable configuration unit output in a product structure tree;
hanging each feature model and feature technical state on each level node in a corresponding product structure tree by an aviation product overall designer or a partner design person (hereinafter referred to as a research and development person) to supplement or update the product structure tree;
further, research personnel hang the feature models and feature technical states corresponding to the variable configuration units under nodes corresponding to the feature models and the feature technical states in the variable configuration units to complete the design of the variable configuration units; in the subsequent steps, the research and development personnel modify the feature model and the feature technical state corresponding to each node in the designed variable configuration unit according to the information feedback in each step so as to update and iterate the feature model and the feature technical state.
Further, in the product structure tree, the variable configuration unit is designed or modified according to the digital twin model corresponding to each product development stage and the corresponding technical state.
Namely: in different product research and development stages, the maturity of the feature models and the feature technical states in the variable configuration units is different, so that the feature models and the feature technical states in new stages need to be continuously introduced into the product structure tree, and the feature models and the feature technical states under the corresponding nodes in the product structure tree are updated and iterated.
Wherein the product development stage comprises: conceptual design, preliminary design, detailed design, prototype trial manufacturing, prototype trial operation (taking an aviation product as an example, the prototype trial flight) and batch production preparation;
and the maturity of the feature model and the feature technology state corresponds to the product research and development stage, namely: the completion progress and the perfection degree of the corresponding characteristic model and the characteristic technical state of each product in the research and development stage are different.
Step three: opening the variable configuration unit designed or modified in the step two;
when data exchange is performed, that is, when the feature model and the feature technical state are exchanged, a technical state manager or a data exchange manager (hereinafter, referred to as "data exchanger") opens a product structure tree in the PLM or the PDM.
Step four: defining a characteristic model and characteristic technical state mapping content;
according to the cooperation content with the partner, the data exchange personnel select the corresponding node in the product structure tree to determine the node information to be sent;
the node information comprises a characteristic model and a characteristic technical state;
the characteristic model comprises a two-dimensional model, a three-dimensional model, a picture file and a PDF file, wherein the three-dimensional model specifically comprises a total layout model, a positioning framework model, an enveloping body model, a ground guarantee model, a space reservation model, a motion mechanism model, a dismounting track model, a grid computing model and a functional principle model; the two-dimensional model is a plan view of the feature model; the picture file and the PDF file are photos of the feature model and relevant text annotation documents.
The characteristic technical state is character annotation information of the characteristic model, and comprises a weight gravity center state, a quality characteristic technical state, a material characteristic technical state, a demand technical state and a airworthiness approval technical state.
Step five: performing quality gate check on the feature model needing mapping;
and performing quality gate inspection on the feature models corresponding to the nodes selected in the fourth step, wherein the specific implementation mode is as follows: and (3) opening the feature model corresponding to the selected node in a computer aided design tool by the data interchange personnel, detecting the Quality of the feature model by calling a model Quality gating inspection tool Quality _ Gate _ Checker, executing a step six if the detection is passed, and returning to the step two if the detection is not passed, wherein the research personnel modify the error which causes the failure in the variable configuration unit.
Furthermore, when the model quality gating inspection tool is called to inspect the quality of the feature model, if the inspection fails, the model quality gating inspection tool generates a quality gating inspection report for research personnel to check the reason of the failure.
Further, when the mass door closing detection is performed, if the mass door closing detection passes, the model mass door closing detection is displayed to pass, and if the mass door closing detection does not pass, the model mass door closing detection is displayed to fail.
Step six: performing quality gate check on the characteristic technical state needing mapping;
calling a technical state Quality gating inspection tool Configuration _ information _ Quality _ Gate to perform Quality inspection of the characteristic technical state according to the four selected characteristic technical states of the corresponding nodes;
and if the detection is passed, executing the step seven, if the detection is not passed, returning to the step two, modifying the error which causes the failure in the variable configuration unit by the research and development personnel, and generating a technical state quality detection report for the research and development personnel to check.
Step seven: triggering an output mapping program to acquire twin models and twin technical states and generating a mapping log, namely: and outputting the characteristic model and the characteristic technical state corresponding to the node selected in the fourth step in a mapping form to form a twin model and a twin technical state, and simultaneously acquiring a log generated when the characteristic model and the characteristic technical state generated by the computer are mapped, wherein the log is recorded as an output mapping log.
Further, during mapping, reading a corresponding feature model and a feature technical state from a product structure tree in the PLM or the PDM according to the selected node, and converting the feature model and the feature technical state into a CAD model (namely a twin model) and an exchange data packet (twin technical state); wherein the CAD model is a three-dimensional drawing and a two-dimensional drawing of the feature model, and the exchange data packet is a text file in an stp or xml format.
Step eight: checking the output mapping log to judge whether the twin model and the twin technical state are successfully obtained;
the specific operation of checking the output mapping log generated in the step seven to judge whether the twin model and the twin technical state are successfully obtained is as follows: if the state of the output mapping log is a successful state, representing that the twin model and the twin technical state are successfully obtained, and executing the ninth step; if not, judging the error type according to the content of the mapping log, and taking different measures according to the error type;
if the error type is a program error caused by the BUG, executing a step twelve, and if the error type is a characteristic model quality gate or a characteristic technical state gate which cannot be checked out, or other errors of the characteristic technical state, returning to the step two;
wherein the program error caused by the BUG comprises: when the program reads the model file, the network is interrupted, and when the program reads the database, the service of the database is suddenly stopped.
Step nine: a twin model output gate closing stamp is marked for tracing data exchange according to the twin model output gate closing stamp subsequently;
the trigger output program Extract _ Data _ Package automatically writes a word "gate identification matches" and a time stamp that passes the gate check.
Step ten: the twin technical state gate closing stamp is marked for tracing data exchange according to the twin technical state gate closing stamp;
the trigger output program Extract _ Data _ Package automatically writes a typeface of "gate-off identification match" and a time stamp of passing gate-off check.
Step eleven: acquiring and outputting a variable configuration unit data packet comprising an output mapping log, a twin model and a twin technical state;
a checking service program is called to check the file list, the size of the model, the timestamp and the conformity of the configuration unit and generate a size checking file;
combining the CAD model in the seventh step, the text file in the stp or xml format, the output mapping log in the eighth step and the size verification files of the CAD model and the stp or xml file to generate a variable unit data packet;
further, the checking service program reads the twin technical state (namely, the text file in the stp or xml format) and the name of the twin model (namely, the CAD model) one by one, calculates the sizes of the twin technical state and the twin model, checks whether the sizes of the twin technical state and the twin model are consistent with the size of the output mapping log in the data packet, judges whether the size of the output mapping log in the data packet is inconsistent with the size of the output mapping log in the merged package if the sizes of the twin technical state and the twin model are inconsistent with each other, informs related personnel to modify and repack the output mapping log in the data packet, and sends the data to a partner if the sizes of the output mapping log in the data packet and the data in the merged package are consistent with each other.
Further, the variable configuration unit packet is transmitted to the partner through an FTP (File Transfer Protocol, FTP for short) service, a File center share, or the like.
Step twelve: and (6) ending.
For the output variable configuration unit data packet, the following method is used:
the first method is as follows: for a partner which only bears a small number of variable configuration unit designs, the CAD can be directly adopted to develop collaborative design work, design results are stored as input data packets in an output data packet format through tools, and the input data packets are sent to the OEM.
The second method comprises the following steps: for a partner bearing a large number of variable configuration unit designs, PLM or PDM needs to be deployed, a data exchange package is imported into the PLM or PDM, then collaborative design work is carried out, design results are stored as the data exchange package which can be input by an OEM through a data exchange tool, and the data exchange package is sent to the OEM.
The OEM introduces the content in the input data packet into the product structure tree constructed in the first step according to the aviation product variable configuration unit digital twin model and the technical state input process, and updates and iterates the content articulated with the joint points in the structure tree;
wherein, the OEM and the partner have the same import flow for the variable configuration unit data packet, and only check time for the data packet is different, taking the OEM import flow as an example, the following is specifically described:
s1: the research personnel opens the variable configuration unit data packet sent by the partner;
s2: checking the integrity of the variable configuration unit data packet;
and calling a checking service program to check the conformity of the file list, the model size, the timestamp and the configuration unit.
The specific verification method comprises the following steps: and the checking service program reads the twin technical state (namely the text file in the stp or xml format) and the name of the twin model (namely the CAD model) one by one, calculates the sizes of the twin technical state and the twin model, checks whether the sizes of the twin technical state and the twin model are consistent with the size of the output mapping log in the data packet, judges whether the output mapping log in the data packet is inconsistent with the data in the merged package if the sizes of the twin technical state and the twin model are inconsistent with each other, and executes S9 if the sizes of the output mapping log in the data packet and the data in the merged package are consistent with each other, and executes S3 if the sizes of the output mapping log in the data packet and the data in the merged package are consistent with each other.
S3: defining input content, and selecting corresponding content in the variable configuration unit data packet according to the content cooperated with a partner so as to avoid importing a large quantity of invalid files;
s4: performing quality gate-off inspection of the twin model;
adopting the quality gate in the fifth step to check the twin model;
further, the quality gate-off check here mainly checks whether the twin model in the variable configuration unit packet meets the modeling requirement of the OEM, and if the quality gate-off check is passed, step S5 is executed, and if the twin model is not passed, step S9 is executed.
S5: performing a quality gate closure check of the twin state of the technology;
and (5) checking the twin model by adopting the mass gate closure in the step six, if the twin model passes the mass gate closure check, executing the step S5, and if the twin model does not pass the mass gate closure check, executing the step S9.
S6: triggering an input mapping program to obtain a feature model and a feature technical state and generating an input mapping log;
and reading the twin model and twin technical state selected in the step S3 from a variable configuration unit data packet sent by a partner, converting the selected twin model and twin technical state into a feature model and a feature technical state, and hanging the feature model and twin technical state under a corresponding node in a product structure tree of a research and development personnel side so as to update and iterate the content hung under the corresponding node and improve the maturity of the feature model and the feature technical state.
Further, an input mapping log is generated when the twin model and the twin technical state are converted into the feature model and the feature technical state.
S7: checking the input mapping log to judge whether the feature model and the feature technical state are successfully obtained;
the mode is the same as the operation principle in the step eight;
reading the input mapping log, checking whether the state of the log is a successful state, if so, executing the step S7, and if not, judging the type of an error;
if the program BUG causes an error, executing the step S10; if the model door is closed or the model or technical state which cannot be detected by the unit input technical state check is wrong, executing the step S9;
s8: typing a model and inputting a gate closing stamp;
s9: feeding back error information to the partner;
s10: end of
In conclusion, the exchanged model and the technical state information framework thereof are defined in advance, door closing judgment and maturity management and control are performed in the process, a large number of data packets do not need to be led in and out repeatedly, the exchange times are greatly reduced, the error rate of the model and the technical state in the exchange process is reduced, and the cooperative work efficiency of the aviation product is improved;
in addition, the conventional data exchange method requires that the partner also constructs the same PLM system as the original equipment manufacturer OEM, and the partner only undertakes the development of a small number of variable configuration units of aviation products, so that the supporting software and hardware investment is large. By only purchasing a digital twin auxiliary design tool and matching the data exchange tool with the built-in output and input gateway and maturity control system, the partner can quickly carry out cooperative work with superior suppliers or original equipment manufacturers with a small amount of cost, and the problems of more versions and model versions of parts, and real technical state and large auditing work caused by frequent exchange and lack of control are solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A digital twin model of an aviation product and a technical state bidirectional exchange method thereof are characterized in that:
the method comprises the following steps: constructing a product structure tree according to the product structure list;
step two: designing or modifying a variable configuration unit output in a product structure tree;
hanging each characteristic model and each characteristic technical state on each level of nodes in the corresponding product structure tree to supplement or update the product structure tree;
step three: opening the variable configuration unit designed or modified in the step two;
step four: defining a characteristic model and characteristic technical state mapping content;
step five: performing quality gate check on the feature model needing mapping;
step six: performing quality gate check on the characteristic technical state needing mapping;
step seven: triggering an output mapping program to acquire a twin model and a twin technical state and generating a mapping log;
step eight: checking the output mapping log to judge whether the twin model and the twin technical state are successfully obtained;
step nine: a twin model output gate closing stamp is marked for tracing data exchange according to the twin model output gate closing stamp subsequently;
step ten: marking a twin technical state gate closing stamp for the subsequent tracing of data exchange according to the twin technical state gate closing stamp;
step eleven: acquiring and outputting a variable configuration unit data packet comprising an output mapping log, a twin model and a twin technical state;
step twelve: and (6) ending.
2. The aviation product digital twin model and the technical state bidirectional exchange method thereof according to claim 1, characterized in that:
in the product structure tree, variable configuration units are designed or modified according to the digital twin model corresponding to each product development stage and the corresponding technical state.
3. The aviation product digital twin model and the technical state bidirectional exchange method thereof according to claim 1, characterized in that:
the method for defining the feature model and the technical state mapping content comprises the following steps: selecting a corresponding node in the product structure tree according to the cooperation content of the partner so as to determine the node information to be sent; the node information comprises a characteristic model and a characteristic technical state;
the three-dimensional model specifically comprises a general layout model, a positioning skeleton model, an enveloping body model, a ground guarantee model, a space reservation model, a motion mechanism model, a dismounting track model, a grid computing model and a functional principle model; the two-dimensional model is a plan view of the feature model; the picture file and the PDF file are photos of the feature model and relevant text annotation documents;
the characteristic technical state is character annotation information of the characteristic model, and comprises a weight gravity center state, a quality characteristic technical state, a material characteristic technical state, a demand technical state and a airworthiness approval technical state.
4. The aviation product digital twin model and the technical state bidirectional exchange method thereof according to claim 1, characterized in that:
the quality gate check method for the feature model needing mapping comprises the following steps: and C, performing quality gate-off check on the feature model corresponding to the node selected in the step four, if the feature model passes the quality gate-off check, executing the step six, if the feature model does not pass the quality gate-off check, returning to the step two, and informing the OEM of modifying the corresponding error which causes the failure in the variable configuration unit.
5. The aviation product digital twin model and the technical state bidirectional exchange method thereof according to claim 1, characterized in that:
and performing quality gate-off check on the technical state of the features needing to be mapped, if the technical state passes through, executing a step seven, if the technical state does not pass through, returning to the step two, and informing the OEM of modifying the error which correspondingly causes the failure in the variable configuration unit.
6. The aviation product digital twin model and the technical state bidirectional exchange method thereof as claimed in claim 1, wherein:
the twin model, twin technical state and mapping log obtaining method comprises the following steps: and outputting the characteristic model and the characteristic technical state corresponding to the node selected in the fourth step in a mapping form to form a twin model and a twin technical state, and simultaneously acquiring a log generated when the characteristic model and the characteristic technical state generated by the computer are mapped, wherein the log is recorded as an output mapping log.
7. The aviation product digital twin model and the technical state bidirectional exchange method thereof as claimed in claim 1, wherein:
the specific operation of checking the output mapping log to judge whether the twin model and the twin technical state are successfully obtained is as follows: if the state of the output mapping log is a successful state, representing that the twin model and the twin technical state are successfully obtained, and executing the ninth step; if not, judging the error type according to the content of the mapping log, and taking different measures according to the error type.
8. The aviation product digital twin model and the technical state bidirectional exchange method thereof according to claim 7, characterized in that:
if the error type is a program error caused by the software BUG, executing a step twelve, and if the error type is a characteristic model quality gate or a characteristic technical state gate which cannot be detected, returning to the step two;
wherein the program error caused by the software BUG comprises: when the program reads the model file, the network is interrupted, and when the program reads the database, the service of the database is suddenly stopped.
9. The aviation product digital twin model and the technical state bidirectional exchange method thereof according to claim 1, characterized in that:
the method for outputting the gate closing stamp and the technical state gate closing stamp by the twin model is as follows: the trigger program automatically writes the word "the door closing identification matches" and a time stamp that passes the door closing check.
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