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A grey target performance evaluation model for aeroengine pressure test bench

Yanhua Zhang (College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, China)
Kaixin Ying (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China)
Jialin Zhou (AECC Sichuan Gas Turbine Establishment, Chengdu, China)
Yuehua Cheng (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China)
Chenghui Xu (AECC Sichuan Gas Turbine Establishment, Chengdu, China)
Zhigeng Fang (Institute for Grey Systems Studies, Nanjing University of Aeronautics and Astronautics, Nanjing, China)

Grey Systems: Theory and Application

ISSN: 2043-9377

Article publication date: 29 August 2024

Issue publication date: 24 September 2024

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Abstract

Purpose

This paper aims to optimize the air pressure regulation scheme of the aeroengine pressure test bench.

Design/methodology/approach

Based on the requirements of pressure regulation process and the operating mechanism of aeroengine pressure test bench, a grey performance evaluation index system is constructed. The combination of principal component analysis and grey theory is employed to assign weights to grey indexes. The grey target evaluation model is introduced to evaluate the performance of historical regulation processes, and the evaluation results are analyzed to derive optimization mechanism for pressure regulating schemes.

Findings

A case study based on monitoring data from nearly 300 regulation processes verifies the feasibility of the proposed method. On the one hand, the improved principal component analysis method can achieve rational weighting for grey indexes. On the other hand, the method comparison intuitively shows that the proposed method performs better.

Originality/value

The pressure test bench is a fundamental technical equipment in the aviation industry, serving the development and testing of aircraft engines. Due to the complex system composition, the pressure and flow adjustment of the test bench heavily rely on manual experience, leading to issues such as slow adjustment speed and insufficient accuracy. This paper proposes a performance evaluation method for the regulation process of pressure test bench, which can draw knowledge from historical regulation processes, provide guidance for the pressure regulation of test benches, and ultimately achieve the goal of reducing equipment operating costs.

Keywords

Acknowledgements

This work was funded by the National Natural Science Foundation of China (No: 72271124). The authors of this paper would like to thank the Fault Detection and Diagnosis team at Nanjing University of Aeronautics and Astronautics for their support of this research.

Citation

Zhang, Y., Ying, K., Zhou, J., Cheng, Y., Xu, C. and Fang, Z. (2024), "A grey target performance evaluation model for aeroengine pressure test bench", Grey Systems: Theory and Application, Vol. 14 No. 4, pp. 812-829. https://doi.org/10.1108/GS-01-2024-0013

Publisher

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Emerald Publishing Limited

Copyright © 2024, Emerald Publishing Limited

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