Parametric Design Method of Level 1 Components of Aircraft Long Truss Parts

Abstract

The invention discloses a method for parametrically designing primary components of airplane long truss-type parts. The long truss-type parts in an airplane structure are expressed by parametric components, and the parametric expression for the primary components of the airplane long truss-type parts specifically comprises the following four parts 1, essential attribute: the essential attribute specifically comprises the name of components, the version number, the creation time, the description of the components, a manufacturing technology and remarks; 2, geometric attribute: the geometric attribute is specifically divided into two parts of location parameters and section parameters; 3, non-geometric attribute: the non-geometric attribute specifically relates to a disassembling scheme and non-geometric attribute information corresponding to the disassembling scheme; and 4, two-dimensional sectional view: the two-dimensional sectional view is used for helping a user correctly understand the physical significance of each parameter of the components when the components are in instantiation. According to the method disclosed by the invention, a component base system of an airplane is facilitated to be built, function and performance model data foundation is provided for the standardization, the simulated analysis and the optimization of the airplane design, the consistency between a geometric model machine and a function model machine / performance model machine is ensured, the designing quality of the airplane is increased, and the development time is shortened.

Description

technical field [0001] The invention relates to the technical field of aircraft structure design, and in particular provides a parametric design method for first-level components of aircraft long truss parts. Background technique [0002] In the prior art, with the continuous in-depth application of CAD technology, CAD technology has increasingly become an indispensable tool for aircraft design departments. Designers need to solve the parameter determination problem before using CAD to complete the 3D 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 a description of design results, not a real design. The model construction of the design process becomes the key for the CAD system to participate in the product design process. This model should be suitable for the data requirements of CAD / CAE and other systems, and conform to the description of the pro...

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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