Parametric Design Method of Level 1 Components of Aircraft Frame Parts

Abstract

A first-level construction member parametrization design method for airplane frame-type parts comprises that the frame-type parts in an airplane structure is described by parametrization construction members. First-level construction member parametrization description of the airplane frame-type parts particularly relates to contents as the following four parts: (1) essential attributes comprise construction member names, version numbers, creating time, construction member description, manufacture technology and remarks; (2) geometric attributes comprise location parameters and section parameter; (3) non-geometric attributes particularly relate to decomposion schemes and non-geometric attribute information; and (4) a two-dimensional sectional view is used for enabling a user to correctly understand physical significances of each parameter of the construction member when construction member instantiation is carried out. The first-level construction member parametrization design method contributes to building a component base system of an airplane, provides function and performance model data basis for airplane design standardization, simulated analysis and optimizing, guarantees consistency of data between a geometric model machine a d a functional model machine / performance model machine, improves design quality of the airplane, and shortens development period.

Description

Technical field: [0001] The present invention relates to the technical field of aircraft structure design, and in particular provides a parametric design method for level 1 components of aircraft frame parts. Background technique: [0002] Among the existing technologies, with the continuous in-depth application of CAD technology, CAD technology has become an indispensable tool for aircraft design departments. The designer needs to solve the problem of determining the parameters before using CAD to complete the three-dimensional solid model of the product-design. If CAD technology cannot participate in the determination of product parameters, then the application of CAD technology in design is only the description of the design results, not the real design. The CAD system must participate in the product design process, and the model structure of the design process becomes the key. This model should be suitable for the data requirements of CAD / CAE and other systems and meet the ...

AI Technical Summary

Problems solved by technology

At present, CAD and CAE technology can achieve seamless integration in terms of physical analysis of parts, but how to solve the seamless integration of aerospace thin-walled structures, that is, to solve the problem of inconsistency between the geometric type of the CAE model and the geometric type of the CAE model, has become an influential factor. The key to the seamless connection between CAD and CAE cannot be solved by the existing technology

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