A highly accurate method for forecasting the compressor geometric variable system based on the data-driven method

PLoS One. 2023 Jul 27;18(7):e0283108. doi: 10.1371/journal.pone.0283108. eCollection 2023.

Abstract

To make the puzzle of aero-engines complete, understanding the law of the compressor geometric variable system is a vital part. Modeling all aspects of aero-engines quickly has been a continuous area of research since the advent of artificial intelligence (AI). However, diagnosing or predicting faults is an ancient adage, and it is vital to explore key system forecast research, particularly since traditional forecasting techniques do not account for future information of non-target parameters. In this article, based on the feasibility of forecasting the compressor geometric variable system, an enhanced ConvNeXt model utilizing the Sliding Window Algorithm mechanism is proposed. And this method takes into account the future information of non-target parameters. With the novel strategy, the issue of the forecast's error increasing with forecast length is alleviated. As a result, in a particular condition, the error we obtained only accounts for 20.07% of that of the standard forecast approach. Additionally, it is verified that this method can be applied to various aero-engines. Finally, experiments on several aero-engine states involving the transition state and the steady state are conducted to strengthen the plausibility and credibility of our theories. It should be noted that the foundation of each experiment is data from actual flights.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms*
  • Artificial Intelligence*
  • Forecasting

Grants and funding

Funding Source: ①the Key R & D plan of Sichuan Provincial Department of science and Technology [grant number 2022YFG0356]; ②the Key R & D plan of Tibet Science and Technology Department [grant number XZ202101ZY0017G]; ③CAAC education and training program [grant number 0252001]; ④and the Fundamental Research Funds for the Central Universities [grant number J2022-014]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.