| Citation: | WANG Ruiqing, LI Dong, LI Yunhua, et al. Thermal boundary simulation and temperature prediction for aircraft fuel system with full flight profile[J]. Journal of Beijing University of Aeronautics and Astronautics, 2022, 48(3): 369-375. doi: 10.13700/j.bh.1001-5965.2020.0555(in Chinese)
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Through simulation experiments and machine learning, this paper studies the main factors that affect the temperature in aircraft fuel systems and predicts the temperature of the fuel system. The basic structure and layout of aircraft fuel system were determined. A simulation model was established using the Simulink simulation platform to simulate the temperature of each node of the fuel circuit with full flight profile, and the main factors affecting the temperature of each node of the fuel system were obtained by changing different conditions. The temperature of the fuel system was predicted through a machine learning model. This research can estimate and perceive the operating temperature of fuel system, aircraft hydraulic system and lubricating oil system, which lays a foundation for further sensing the thermal boundary of fuel hydraulic system and controlling the thermal load absorption of airborne hydraulic and electromechanical systems.
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