Parametric Design Method of Level 1 Components of Aircraft Rib Parts

Abstract

The parametric design method of level 1 components of aircraft rib parts: use parametric components to express the rib parts in the aircraft structure, and the parametric expression of level 1 components of aircraft rib parts specifically involves the following four parts: Including: component name, version number, creation time, component description, manufacturing process, remarks; 2) "Geometric properties" are specifically divided into two parts: positioning parameters and section parameters; 3) "Non-geometric properties" specifically involve decomposition schemes and corresponding decompositions The "non-geometric attribute" information of the scheme; 4) "Two-dimensional section view" is used for the user to correctly understand the physical meaning of each parameter of the component when the component is instantiated. The invention is helpful to build the aircraft component library system, provides function and performance model data basis for aircraft design standardization and simulation analysis and optimization, ensures the coordination and consistency of data among geometric prototypes, functional prototypes / performance prototypes, and improves the design quality of aircraft , shorten the development cycle.

Description

Technical field [0001] The invention relates to the technical field of aircraft structure design, and in particular provides a parametric design method for a level 1 component of aircraft rib 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 able to fit the data requirements of CAD / CAE and other systems and meet the description ...

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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