A rotor tip assembly clearance prediction method considering multi-sources uncertainties

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-04-02 DOI:10.1016/j.ast.2025.110186

Yingzhi Zhang , Huibin Sun , Xiaoxia Zhang , Wanxuan Liu , Kai Chen , Cheng Yan

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引用次数: 0

Abstract

Rotor Tip Assembly Clearance (RTAC) significantly affects the aerodynamic performance and safety of aero-engines. Accurate prediction of RTAC is essential for effective control. However, existing prediction models fail to consider multi-sources uncertainty induced by limited measurement data and process execution. To address this issue, this paper proposes a prediction method for RTAC under multi-sources un-certainties. The uncertainties related to the RTAC and the quantification method are studied. Based on the deterministic prediction model and probability box theory, the formation mechanism of RTAC uncertainty is revealed. RTACs and their distribution at different phases, blades and stages are predicted and analyzed. Furthermore, the estimation methods for probability of RTAC overproof are proposed based on prediction responses. The feasibility of the proposed method is verified through a case study. The results provide more reliable reference for engineers in decision-making.

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考虑多源不确定性的转子叶尖总成间隙预测方法

旋翼叶尖总成间隙（RTAC）对航空发动机的气动性能和安全性有着重要的影响。准确预测RTAC对有效控制至关重要。然而，现有的预测模型没有考虑到有限的测量数据和过程执行所引起的多源不确定性。针对这一问题，本文提出了一种多源不确定性下RTAC的预测方法。研究了RTAC的不确定度及其量化方法。基于确定性预测模型和概率盒理论，揭示了RTAC不确定性的形成机理。对rtac及其在不同阶段、叶片和阶段的分布进行了预测和分析。在此基础上，提出了基于预测响应的RTAC过防概率估计方法。通过实例验证了该方法的可行性。研究结果为工程师决策提供了更可靠的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.