A novel case-based reasoning framework for civil aircraft structural maintenance: Handling uncertainty with intuitionistic fuzzy entropy

Ruiguan Lin, Dun Li, Changwei Zhou, Yubin Yue, Department of Industrial Engineering, Tsinghua University, s Republic of China, College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, s Republic of China

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Published online on March 26, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Ahead of Print.
Civil Aircraft Structural Maintenance (CASM) decision-making for out-of-manual repairs is a critical task fraught with uncertainty, relying heavily on subjective expert knowledge. Existing Case-Based Reasoning (CBR) systems, while useful, often struggle ...