MORIOKA Noriko : Manager, Control Systems Engineering Department, Research & Engineering Division, Aero-Engine & Space Operations KAKIUCHI Daiki : Control Systems Engineering Department, Research & Engineering Division, Aero-Engine & Space Operations OZAWA Kanji : Manager, Engine Technology Department, Research & Engineering Division, Aero-Engine & Space Operations SEKI Naoki : Engine Technolog...

A novelty detection approach to condition monitoring of aerospace gas-turbine engines is presented, providing a consistent framework for onand off-line analysis, each with differing typical implementation constraints. On-line techniques are introduced for observing abnormality in engine behaviour during aircraft flights, and are shown to provide early warning of engine events in real-time. Off-...

The aerospace industry is one of the biggest consumers of advanced materials because of its unique combination of mechanical and physical properties and chemical stability. Highly alloyed stainless steel, titanium alloys and nickel based superalloys are mostly used for aerospace applications. High alloyed stainless steel is used for the shafts of aero engine turbines, titanium alloys for compre...

This paper describes a method for constructing a model of normal system state for the purpose of providing continuous condition monitoring of an aerospace gas-turbine engine. We show how the model can be visualised in 2D to allow an intuitive identification of abnormal engine and how periods of abnormal engine condition can be identified by means of a novelty score. This approach is illustrated...

Aerospace engine is the source of power for development national defense and aerospace. Engine bolt tightening an important part aerospace production process. At present, most methods engines are manual or traditional rigid tightening, which lead to problem low efficiency large deformation. This paper proposes a process planning method based on digital twin, including flexible mechanism design,...

For advanced aerospace propulsion systems, development of ceramic matrix composite integrally-bladed turbine disk technology is attractive for a number of reasons. The high strength-to-weight ratio of ceramic composites helps to reduce engine weight and the onepiece construction of a blisk will result in fewer parts count, which should translate into reduced operational costs. One shortcoming w...