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Method for creating and modifying parts in batches

One part, batch technology

Pending Publication Date: 2021-09-24
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a method for creating and modifying parts in batches, so as to solve the problems of low manual efficiency, cumbersome steps, and unsatisfactory design quality in the existing methods of creating and modifying similar parts in the structural design of civil aircraft. to guaranteed technical issues

Method used

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  • Method for creating and modifying parts in batches
  • Method for creating and modifying parts in batches
  • Method for creating and modifying parts in batches

Examples

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Embodiment 1

[0039] Such as Figure 1-5 As shown, this embodiment provides a method for creating and modifying parts in batches, including the following steps:

[0040] Step S1: setting the CATIA knowledge engineering environment based on the CATIA software;

[0041] Step S2: Create a part document template or create a super copy containing geometric features, user features, and save them in the catalog file;

[0042] Step S3: create a list, select the input elements required for the instantiation of part document templates or super copies, and user features;

[0043] Step S4: Create a design table and associate it with the structural design parameters, and set different configurations according to the number of parts;

[0044] Step S5: Create engineering instructions, write and execute engineering instruction array codes;

[0045] Step S6: Improve the model.

[0046] Specifically, in step S1, the CATIA knowledge engineering environment includes type reference catalogs and architect re...

Embodiment 2

[0065] Such as Figure 1-6 As shown, this embodiment is on the basis of Embodiment 1, and uses the composite long stringer of the lower part of the front fuselage of a large civil aircraft as a typical part to describe the solution of the present invention in detail. The structure of the trusses is similar, the modeling method and steps are the same, and only the occupancy area of ​​the trusses is different in the input elements, so one truss part can be selected and saved as a part document template, and other trusses can be created in batches by the method of the present invention . The method of the present invention must have a skeleton model as a reference to the external reference of the part. In the following, the long stringer parts with the long stringer occupying surface L42 are used as templates, and multiple stringer parts are obtained by replacing the input element L42 in batches. The specific scheme is as follows:

[0066] A method of creating and modifying str...

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Abstract

The invention discloses a method for creating and modifying parts in batches, and relates to the technical field of aircraft part design. The method comprises the following steps: S1, setting a CATIA knowledge engineering environment based on CATIA software; S2, creating a part document template or creating a super copy containing geometric features and user features, and storing the part document template or the super copy containing the geometric features and the user features in a directory library file; S3, creating a list, and selecting a part document template or a super copy, and input elements required during instantiation of user features; S4, creating a design table, associating the design table with structural design parameters, and setting different configurations according to the number of parts; S5, creating an engineering instruction, and compiling and executing an engineering instruction array code; and S6, perfecting the model. According to the method, repeated modeling labor can be avoided, and the method has the advantages that steps are simplified, efficiency is improved, and design quality can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of aircraft part design, in particular to a method for creating and modifying parts in batches. Background technique [0002] With the development of aviation science and technology and the increasingly intensified market competition, the R&D cycle of civil aircraft has been further compressed, which has brought about an upgrade in the iteration rate of structural design. Aiming at the problem of a large number of similar parts in the structural design of civil aircraft, it is necessary to seek a batch A rapid modeling method for creating and modifying parts is of great importance. [0003] The traditional modeling method obtains similar parts by copying parts, breaking the link and pasting, and then modifying the input elements, and finally manually modifying the local features of the parts. For the creation and modification of a large number of similar parts, this method has a lot of repetition The operat...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F8/30
CPCG06F30/15G06F8/30
Inventor 张航王璇王玖陈晓峰刘晓明
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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