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Sensors play an important role in the health monitoring and fault diagnosis along the gas path of the turbofan engine. In order to obtain effective and accurate sensors signals in the faults diagnosis of engine gas path components, a new sensor optimization scheme based on combination of the baseline sensor and the additional sensor is proposed. This scheme combines the nonlinear component-level model...
As the heart of aircraft, aero-engine's performance is one of the influence factors of flight safety and fuel efficiency. The purpose of this paper is to study turbofan engine blade fouling's formation mechanism and development progress. Blade is one of the key parts of the whole turbofan engine which includes fan blades and axial compressor rotor and stator blades. Blade fouling is the process that...
Online aero-engine washing is an advanced way to remove the compressor fouling, which is specified in the AMM (Aircraft Maintenance Manual). The effect of Aero-engine washing would be influenced by the characterization of liquid sheet. A numerical method is put forward to simulate the motion of liquid drop in the aero-engine when the particles enter into the front of the engine from nozzle. The study...
Users often fail to find the right keywords to precisely describe their queries in the information seeking process. Techniques such as user intention predictions and personalized recommendations are designed to help the users figure out how to formalize their queries. In this work, we aim to help users identify their search targets using a new approach called Interactive User Intention Understanding...
Java Virtual Machine (JVM) education has become essential in training embedded software engineers as well as virtual machine researchers and practitioners. However, due to the lack of suitable instructional tools, it is difficult for students to obtain any kind of hands-on experience and to attain any deep understanding of JVM design. To address this issue, the authors designed the RHE, or Reduced...
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