Feature simulation part design method and engine disk test method

By constructing a three-dimensional geometric model and multi-physical finite element analysis model of the engine roulette, the simulation parts are designed to optimize stress concentration and gradient distribution structure, which solves the problem of poor flexibility in the design adjustment of simulation parts in the prior art, and achieves higher simulation accuracy and design optimization efficiency.

CN119849065BActive Publication Date: 2025-05-27AECC HUNAN AVIATION POWERPLANT RES INST
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Patent Information

Application Number
CN202510322750.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2025-05-27
Estimated Expiration
2045-03-19

AI Technical Summary

Technical Problem

In the prior art, the simulation parts for the engine roulette crack propagation simulation test have poor flexibility in design and adjustment range and limited adjustment range, making it difficult for the simulation results to accurately reflect the real test results.

Method used

By constructing a three-dimensional geometric model of the engine roulette, a multi-physics finite element analysis model was established, and the simulation component was designed with the goal of crack propagation driving force equivalent, and the stress concentration and gradient distribution structure of the simulation component were optimized. The stress concentration and gradient characteristics of the actual components were simulated using elliptical holes and arc structures, and the structural parameters of the simulation component were adjusted through finite element simulation and iterative optimization.

Benefits of technology

It achieves higher simulation accuracy, making the stress distribution of the simulated parts closer to the real situation, avoiding the problem of inconsistent with the actual disk test results, and improving the design optimization efficiency.

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Abstract

The present invention discloses a method for designing a feature simulation component and a method for testing an engine disk. The method for designing the feature simulation component, where the feature simulation component is used for the crack propagation test of the engine disk, includes: S1. constructing a three-dimensional geometric model based on the actual component of the engine disk; S2. establishing a finite element analysis model based on the three-dimensional geometric model and material parameters of the actual component of the engine disk; S3. designing the simulation component to have a stress concentration simulation structure and a stress gradient distribution simulation structure, and determining the initial basic dimensions of the simulation component; S4. performing finite element simulation analysis; S5. judging whether the stress test data of the simulation component is consistent with that of the actual component. If so, the design of the simulation component is completed. If not, adjust the dimensions of the stress concentration simulation structure of the simulation component and / or adjust the dimensions of the stress gradient distribution simulation structure of the simulation component, and repeat steps S4 - S5 until the stress test data of the simulation component is consistent or tends to be consistent with that of the actual component.
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