TY - GEN
T1 - A hybrid learning approach for the simulation of aircraft dynamical systems
AU - Yu, Yang
AU - Yao, Houpu
AU - Liu, Yongming
N1 - Funding Information:
The research reported in this paper was supported by funds from NASA University Leadership Initiative program (Contract No. NNX17AJ86A, PI: Yongming Liu, Project Officer: Kai Goebel). The support is gratefully acknowledged.
Publisher Copyright:
© 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2019
Y1 - 2019
N2 - The computation costs of predicting flight trajectories can be expensive or even prohibitive especially for a large number of aircrafts in the air traffic system. This study proposes the concept of hybrid learning, a novel approach based on data-driven learning and physics, as a computationally efficient method for the simulation of aircraft dynamics. The hybrid learning integrates the underlying physics of dynamical systems into learning models such as neural networks to reduce the training and simulation costs. The application of hybrid learning for simulating aircraft dynamics is demonstrated using a recently introduced physics-aware network known as the deep residual recurrent neural network (DR-RNN) on a Boeing 747-100 aircraft. The aircraft dynamics are described using a six degrees-of-freedom aircraft model. Both a long short-term memory (LSTM) network and a DR-RNN are trained using the simulated responses of the aircraft and then the trained networks are used to predict the response of aircraft under arbitrary control inputs and disturbances. The results show that the DR-RNN can accurately predict aircraft responses and has excellent extrapolation capabilities. Moreover, the DR-RNN exhibits superior computation efficiency compared with a classical numerical method, the fourth-order Runge-kutta method, highlighting its suitability in serving as surrogating models for aircraft dynamical systems.
AB - The computation costs of predicting flight trajectories can be expensive or even prohibitive especially for a large number of aircrafts in the air traffic system. This study proposes the concept of hybrid learning, a novel approach based on data-driven learning and physics, as a computationally efficient method for the simulation of aircraft dynamics. The hybrid learning integrates the underlying physics of dynamical systems into learning models such as neural networks to reduce the training and simulation costs. The application of hybrid learning for simulating aircraft dynamics is demonstrated using a recently introduced physics-aware network known as the deep residual recurrent neural network (DR-RNN) on a Boeing 747-100 aircraft. The aircraft dynamics are described using a six degrees-of-freedom aircraft model. Both a long short-term memory (LSTM) network and a DR-RNN are trained using the simulated responses of the aircraft and then the trained networks are used to predict the response of aircraft under arbitrary control inputs and disturbances. The results show that the DR-RNN can accurately predict aircraft responses and has excellent extrapolation capabilities. Moreover, the DR-RNN exhibits superior computation efficiency compared with a classical numerical method, the fourth-order Runge-kutta method, highlighting its suitability in serving as surrogating models for aircraft dynamical systems.
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U2 - 10.2514/6.2019-0436
DO - 10.2514/6.2019-0436
M3 - Conference contribution
AN - SCOPUS:85083943809
SN - 9781624105784
T3 - AIAA Scitech 2019 Forum
BT - AIAA Scitech 2019 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Scitech Forum, 2019
Y2 - 7 January 2019 through 11 January 2019
ER -