Parametric Design Method of Level 1 Components for Aircraft Beams, Walls and Ribs

Abstract

The invention discloses a parametrization design method of first-level member of beam, wall and rib type parts of airplane. The parametrization design method comprises the following steps of: stating the beam, wall and rib type parts in the airplane structure by using parametrization members, wherein the parametrization statement of the first-level members of the beam, wall and rib parts of the airplane specifically relates to contents of four parts as follows: 1) the basic attributes specifically comprise the names of the members, the version numbers, the establishment time, the member description, the manufacturing process and the remarks; 2) the geometric attributes specifically consist of two parts of positioning parameters and cross-section parameters; 3) non-geometric attributes specifically relate to decomposition schemes and non-geometric attribute information corresponding to the decomposition schemes; and 4) a two-dimensional sectional drawing is used for helping a user to correctly understand the physical meaning of the parameters of the members in member instantiation. The parametrization design method is helpful in establishing a member bank system, functional and performance model data basis for the standardization and simulation analysis in airplane design is provided, the coordination of data of a geometric model machine and a functional model machine / performance model machine is ensured, the design quality of the airplane is improved, and the research and manufacturing period is shortened.

Description

[0001] Technical field: [0002] The invention relates to the technical field of aircraft structure design, and in particular provides a parametric design method for level 1 components of aircraft beams, walls and ribs. [0003] Background technique: [0004] 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 system...

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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