Multistage wheel disc rotor structure interactive design method driven by geometrical features

Abstract

The invention provides a multistage wheel disc rotor structure interactive design method driven by geometrical features and oriented to engineering requirements. The method comprises the following steps of 1, inputting control point coordinate values of a multistage wheel disc meridian plane geometrical structure; 2, building a multistage wheel disc structure axisymmetric finite element model forthe multistage wheel disc meridian plane geometrical structure; 3, analyzing the structure of the built multistage wheel disc structure axisymmetric finite element model; 4, obtaining the multistage wheel disc meridian plane geometrical structure which meets the design requirement and outputting a CAD model. Through the steps, the change of the control point coordinate values of the multistage wheel disc meridian plane geometrical structure can be automatically displayed, the working efficiency of designing a multistage wheel disc structure is improved to a great extent, the problems existingin the prior art during design that the time and labor cost are wasted when an optimizing algorithm is not steady, and artificial remodeling is needed once the scheme is changed during design in the prior art are solved, and finite element mesh dividing and multistage wheel disc structure design can be achieved.

Description

Technical field [0001] The invention provides a geometric feature-driven multi-stage wheel rotor structure interactive design method, that is, a geometric feature-driven interactive multi-stage wheel rotor structure design method oriented to engineering needs, belonging to the field of mechanical design. Background technique [0002] High thrust-to-weight ratio is one of the main indicators pursued by modern high-performance aero-engines. The optimization design with the goal of minimizing engine mass has been paid more and more attention, and the optimization of the rotor system is particularly important for the entire engine. At present, the compressor rotor in the engine is generally an integral welded rotor, and the single-disk optimization often cannot meet the requirements. At present, there have been researches on the optimization design of compressor rotor structure at home and abroad, but usually the optimization design should consider a variety of constraints, such as g...

AI Technical Summary

Problems solved by technology

Designing in this way is time-consuming and labor-intensive

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