CN112347564A - Method and device for quickly modeling airplane stringer gap based on CATIA (computer-graphics aided three-dimensional interactive application) - Google Patents
Method and device for quickly modeling airplane stringer gap based on CATIA (computer-graphics aided three-dimensional interactive application) Download PDFInfo
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Abstract
The invention provides a method and a device for quickly modeling an airplane stringer gap based on CATIA (computer-graphics aided three-dimensional interactive application), wherein the method comprises the following steps: determining an airplane stringer gap model selected by a user; determining position information of at least one aircraft stringer notch to be generated according to skin appearance information and/or at least one frame plane information and/or at least one stringer axis information input by a user; and quickly establishing each stringer notch in the CATIA according to the parameter information of the airplane stringer notch model and the position information of each airplane stringer notch to be generated. The stringer gap in the database is called, and the positioning elements and parameters are modified singly or in batches, so that the rapid modeling of the stringer gap is realized, the modeling process is simplified, the period and the cost are saved, and meanwhile, the later maintenance and modification are facilitated.
Description
Technical Field
The invention belongs to the technical field of airplane modeling design, and particularly relates to a method and a device for quickly modeling an airplane stringer notch based on CATIA (computer-graphics aided three-dimensional interactive application).
Background
In modern aircraft structural design, a semi-monocoque structure is commonly used, which consists essentially of a skin, typically the exterior shape of the aircraft, stringers, which are longitudinal members, and frames, which are transverse members. In the criss-cross position, stringer breaks are typically designed into the frame for the stringers to pass through.
Because the number of stringer breach is very much, and size and form also have certain difference, along with the difference of each stage of aircraft design, still need carry out many rounds of revisions to the stringer breach, this makes the modeling of stringer breach become a loaded down with trivial details work, has also increased the degree of difficulty of design simultaneously.
The conventional modeling method is to establish an aircraft skeleton model, which comprises a skin appearance, a stringer axis and a frame station plane and is issued for reference, and when the stringer gap is modeled, the issued elements, including the skin appearance, the frame station and the stringer axis, are referred from the aircraft skeleton model, the stringer gap model is drawn, and then the replacement is carried out by moving one by one. This method has a problem of very low modeling efficiency.
Disclosure of Invention
The purpose of the invention is: the method and the device for quickly modeling the airplane stringer gap based on the CATIA solve the problem that the existing stringer gap is very low in efficiency during modeling.
The invention provides a CATIA-based rapid modeling method for a stringer notch of an airplane, which comprises the following steps:
determining an airplane stringer gap model selected by a user;
determining position information of at least one aircraft stringer notch to be generated according to skin appearance information and/or at least one frame plane information and/or at least one stringer axis information input by a user;
and quickly establishing each stringer notch in the CATIA according to the parameter information of the airplane stringer notch model and the position information of each airplane stringer notch to be generated.
Optionally, after determining the aircraft stringer gap model selected by the user, the method further includes:
displaying parameter information of the aircraft stringer breach model to a user;
receiving modified parameter information input by a user;
according to the parameter information of the airplane stringer gap model and the position information of each airplane stringer gap to be generated, rapidly establishing each stringer gap in the CATIA, and the method comprises the following steps:
and quickly establishing each stringer gap in the CATIA according to the modified parameter information and the position information of each to-be-generated airplane stringer gap.
Optionally, after receiving the modified parameter information input by the user, the method further includes:
and generating a new aircraft stringer gap model according to the modified parameter information and the position information of any aircraft stringer gap to be generated, and storing the new aircraft stringer gap model in a database.
Optionally, the method further includes:
displaying position information of the aircraft stringer breach model to a user, the position information including skin appearance information, frame plane information, and stringer axis information of the aircraft stringer breach model;
before determining location information for at least one aircraft stringer breach to be generated based on skin contour information and/or at least one frame plane information and/or at least one stringer axis information input by a user, the method further comprises:
user-modified skin contour information and/or at least one frame plane information and/or at least one stringer axis information is received.
The invention also provides a CATIA-based airplane stringer gap rapid modeling device, which comprises:
the model selection module is used for determining an airplane stringer notch model selected by a user;
the position determining module is used for determining the position information of at least one to-be-generated airplane stringer notch according to skin appearance information and/or at least one frame plane information and/or at least one stringer axis information input by a user;
and the establishing module is used for quickly establishing each stringer notch in the CATIA according to the parameter information of the aircraft stringer notch model and the position information of each aircraft stringer notch to be generated.
Optionally, the method further includes: the system comprises a display module and a modification information acquisition module;
the display module is used for displaying the parameter information of the airplane stringer gap model to a user;
the modification information acquisition module is used for receiving modified parameter information input by a user;
the establishing module is specifically used for rapidly establishing each stringer notch in the CATIA according to the modified parameter information and the position information of each airplane stringer notch to be generated.
Optionally, the method further includes: a storage module;
and the storage module is used for generating a new airplane stringer gap model according to the modified parameter information and the position information of any airplane stringer gap to be generated and storing the new airplane stringer gap model in a database.
Optionally, the display module is further configured to display, to a user, position information of the aircraft stringer gap model, where the position information includes skin appearance information, frame plane information, and stringer axis information of the aircraft stringer gap model;
the modification information acquisition module is further used for receiving skin appearance information and/or at least one frame plane information and/or at least one stringer axis information after being modified by a user.
The invention has the technical effects that:
the invention provides a method and a device for quickly modeling an airplane stringer gap based on CATIA (computer-graphics aided three-dimensional interactive application), wherein the method comprises the following steps: determining an airplane stringer gap model selected by a user; determining position information of at least one aircraft stringer notch to be generated according to skin appearance information and/or at least one frame plane information and/or at least one stringer axis information input by a user; and quickly establishing each stringer notch in the CATIA according to the parameter information of the airplane stringer notch model and the position information of each airplane stringer notch to be generated. The stringer gap in the database is called, and the positioning elements and parameters are modified singly or in batches, so that the rapid modeling of the stringer gap is realized, the modeling process is simplified, the period and the cost are saved, and meanwhile, the later maintenance and modification are facilitated.
Drawings
FIG. 1 shows a schematic flow chart of a CATIA-based method for rapidly modeling a stringer gap of an aircraft;
FIG. 2 illustrates a stringer breach interaction modeling interface diagram;
FIG. 3 illustrates a schematic diagram of an embodiment of rapid modeling of stringer breaches.
Detailed Description
For a better understanding of the utility and objects of the present invention, and not to be considered as limiting solutions, a detailed description of embodiments of the present invention is given further below on the basis of the accompanying drawings.
Fig. 1 shows a schematic flow diagram of a CATIA-based method for rapidly modeling an aircraft stringer gap, and as shown in fig. 1, the invention provides a CATIA-based method for rapidly modeling an aircraft stringer gap, which includes:
the method comprises the following steps: establishing a typical stringer gap parameterized model according to standards and specifications and storing the typical stringer gap parameterized model in a database;
step two: developing an interactive interface in the CATIA through a programming means to call a stringer notch in the database;
step three: the method comprises the steps that positioning elements of stringer gaps and stringer gap control parameters are changed in an interactive interface, and single or multiple stringer gaps are rapidly modeled;
step four: and quickly modifying the parameter set change corresponding to the stringer gap in the model.
Referring to fig. 2 and 3, in one particular embodiment, a method for rapid modeling of aircraft stringer breaches includes:
s1, establishing a Z-shaped stringer notch model in the CATIA according to the standard and the specification, associating parameters of a stringer notch in the standard and the specification with parameters in the Z-shaped stringer notch model, numbering the model as Z1, and storing the model in a database;
s2, opening a stringer notch rapid modeling interactive interface in the CATIA, inputting a stringer notch model number Z1 in a stringer notch type input window, clicking a determination button, calling a Z1 model in a database by a program in a background, and prompting that the model is loaded in the stringer notch type input window.
And S3, clicking a skin appearance button in the positioning element input window, selecting a skin appearance in the model, and displaying the result in a skin input result window. And similarly, clicking a frame plane button, selecting a frame plane in the model, and displaying a result in a frame plane input result window. And clicking a stringer axis button, selecting stringer axis elements in the model, and performing single selection or batch modeling according to the position of a newly-built stringer notch, wherein the batch modeling can be performed through multiple selections, and the parameters are displayed in a stringer axis input result window.
S4, inputting control parameters in the width input window corresponding to the width control parameters in the model parameter input window, inputting corresponding control parameters in the height input window corresponding to the height control values, and inputting control parameters in the thickness input window corresponding to the stringer thickness.
S5, clicking to start modeling, and establishing at least one stringer notch in the CATIA model;
and S6, under the CATIA parameters, each stringer notch generates an independent control parameter set, and under the CATIA relationship, a corresponding rule set is generated to associate the corresponding stringer notch, so that the respective parameters can be changed for quick modification.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A CATIA-based rapid modeling method for a stringer notch of an aircraft is characterized by comprising the following steps:
determining an airplane stringer gap model selected by a user;
determining position information of at least one aircraft stringer notch to be generated according to skin appearance information and/or at least one frame plane information and/or at least one stringer axis information input by a user;
and quickly establishing each stringer notch in the CATIA according to the parameter information of the airplane stringer notch model and the position information of each airplane stringer notch to be generated.
2. The method of claim 1, wherein after determining the user selected aircraft stringer breach model, the method further comprises:
displaying parameter information of the aircraft stringer breach model to a user;
receiving modified parameter information input by a user;
according to the parameter information of the airplane stringer gap model and the position information of each airplane stringer gap to be generated, rapidly establishing each stringer gap in the CATIA, and the method comprises the following steps:
and quickly establishing each stringer gap in the CATIA according to the modified parameter information and the position information of each to-be-generated airplane stringer gap.
3. The method of claim 2, wherein after receiving the user-entered modified parameter information, the method further comprises:
and generating a new aircraft stringer gap model according to the modified parameter information and the position information of any aircraft stringer gap to be generated, and storing the new aircraft stringer gap model in a database.
4. The method of claim 2, further comprising:
displaying position information of the aircraft stringer breach model to a user, the position information including skin appearance information, frame plane information, and stringer axis information of the aircraft stringer breach model;
before determining location information for at least one aircraft stringer breach to be generated based on skin contour information and/or at least one frame plane information and/or at least one stringer axis information input by a user, the method further comprises:
user-modified skin contour information and/or at least one frame plane information and/or at least one stringer axis information is received.
5. A quick modeling device of aircraft stringer breach based on CATIA, its characterized in that includes:
the model selection module is used for determining an airplane stringer notch model selected by a user;
the position determining module is used for determining the position information of at least one to-be-generated airplane stringer notch according to skin appearance information and/or at least one frame plane information and/or at least one stringer axis information input by a user;
and the establishing module is used for quickly establishing each stringer notch in the CATIA according to the parameter information of the aircraft stringer notch model and the position information of each aircraft stringer notch to be generated.
6. The apparatus of claim 5, further comprising: the system comprises a display module and a modification information acquisition module;
the display module is used for displaying the parameter information of the airplane stringer gap model to a user;
the modification information acquisition module is used for receiving modified parameter information input by a user;
the establishing module is specifically used for rapidly establishing each stringer notch in the CATIA according to the modified parameter information and the position information of each airplane stringer notch to be generated.
7. The apparatus of claim 6, further comprising: a storage module;
and the storage module is used for generating a new airplane stringer gap model according to the modified parameter information and the position information of any airplane stringer gap to be generated and storing the new airplane stringer gap model in a database.
8. The apparatus of claim 6, wherein the display module is further configured to display to a user location information for the aircraft stringer breach model, the location information including skin contour information, frame plane information, and stringer axis information for the aircraft stringer breach model;
the modification information acquisition module is further used for receiving skin appearance information and/or at least one frame plane information and/or at least one stringer axis information after being modified by a user.
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| CN113094805A (en) * | 2021-02-25 | 2021-07-09 | 南京远思智能科技有限公司 | Structure analysis parameterized model generation system and method |
| CN116061464A (en) * | 2022-12-26 | 2023-05-05 | 江西洪都航空工业集团有限责任公司 | Multi-stringer forming device and forming method |
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