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Volume 13
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10.3390/met13071151
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Article

Design for the Vent Holes of Gas Turbine Flow Guide Disks Based on the Shape Optimization Method

by
Changlong Wen
1,*,
Yanbing Zheng
1,
Dong Mi
1,*,
Zhengming Qian
1 and
Hongjian Zhang
2
1
AECC Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China
2
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
*
Authors to whom correspondence should be addressed.
Metals 2023, 13(7), 1151; https://doi.org/10.3390/met13071151
Submission received: 29 May 2023 / Revised: 19 June 2023 / Accepted: 19 June 2023 / Published: 21 June 2023
(This article belongs to the Special Issue Fatigue Damage Mechanism and Fatigue Life Prediction of Metallic Materials)
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Abstract

Two shape optimization methods, based on non-parametric and geometric parameters, were developed to address stress concentrations in the vent holes of gas turbine flow guide disks. The design optimization focused on reducing the maximum equivalent stress at the hole edge in an aero-engine gas turbine flow guide disk. The effectiveness of both methods in achieving this objective was studied. The results indicated that the non-parametric-based optimization method reduced the maximum equivalent stress at the hole edge by 24.5% compared to the initial design, while the geometric parameter-based optimization method achieved a reduction of 20.2%. Both shape optimization methods proved effective in reducing stress concentrations and improving fatigue life. However, the non-parametric shape optimization method resulted in a better design for the vent holes based on the study’s findings.
Keywords: shape optimization; flow guide disk; vent hole; design optimization shape optimization; flow guide disk; vent hole; design optimization

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MDPI and ACS Style

Wen, C.; Zheng, Y.; Mi, D.; Qian, Z.; Zhang, H. Design for the Vent Holes of Gas Turbine Flow Guide Disks Based on the Shape Optimization Method. Metals 2023, 13, 1151. https://doi.org/10.3390/met13071151

AMA Style

Wen C, Zheng Y, Mi D, Qian Z, Zhang H. Design for the Vent Holes of Gas Turbine Flow Guide Disks Based on the Shape Optimization Method. Metals. 2023; 13(7):1151. https://doi.org/10.3390/met13071151

Chicago/Turabian Style

Wen, Changlong, Yanbing Zheng, Dong Mi, Zhengming Qian, and Hongjian Zhang. 2023. "Design for the Vent Holes of Gas Turbine Flow Guide Disks Based on the Shape Optimization Method" Metals 13, no. 7: 1151. https://doi.org/10.3390/met13071151

APA Style

Wen, C., Zheng, Y., Mi, D., Qian, Z., & Zhang, H. (2023). Design for the Vent Holes of Gas Turbine Flow Guide Disks Based on the Shape Optimization Method. Metals, 13(7), 1151. https://doi.org/10.3390/met13071151

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