TY - GEN
T1 - Study on Mechanical Environment Analysis Method of Aircraft Cabin
AU - Zhang, Xiaoguang
AU - Li, Bin
N1 - Publisher Copyright:
© 2023, Chinese Aeronautical Society.
PY - 2023
Y1 - 2023
N2 - In order to ensure the high reliability of aircraft, it is necessary to study the mechanical environment of aircraft. In this paper, the vibration and noise sources of the aircraft in cruise state are sorted out, and the external dynamic load of the typical mission profile of the aircraft is calculated by computational fluid dynamics simulation analysis combined with empirical formula method to obtain the aerodynamic noise load of the aircraft surface. Then, the low frequency response of the aircraft cabin is analyzed based on the finite element method, and the high frequency response of the aircraft cabin is analyzed based on the statistical energy method. The full frequency vibration and noise environment of the aircraft cabin is predicted, and the internal vibration and noise spectrum of the aircraft cabin is obtained. The detailed design method of cabin mechanical environment is established, which lays the foundation for the establishment of complete mechanical environment of the whole aircraft, and also provides a reference for the mechanical environment analysis of aircraft in high mobility and large overload environment.
AB - In order to ensure the high reliability of aircraft, it is necessary to study the mechanical environment of aircraft. In this paper, the vibration and noise sources of the aircraft in cruise state are sorted out, and the external dynamic load of the typical mission profile of the aircraft is calculated by computational fluid dynamics simulation analysis combined with empirical formula method to obtain the aerodynamic noise load of the aircraft surface. Then, the low frequency response of the aircraft cabin is analyzed based on the finite element method, and the high frequency response of the aircraft cabin is analyzed based on the statistical energy method. The full frequency vibration and noise environment of the aircraft cabin is predicted, and the internal vibration and noise spectrum of the aircraft cabin is obtained. The detailed design method of cabin mechanical environment is established, which lays the foundation for the establishment of complete mechanical environment of the whole aircraft, and also provides a reference for the mechanical environment analysis of aircraft in high mobility and large overload environment.
KW - Acoustic vibration coupling
KW - Aerodynamic noise
KW - Aircraft cabin
KW - Mechanical environment
KW - Statistical energy method
UR - http://www.scopus.com/inward/record.url?scp=85147997210&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-7652-0_70
DO - 10.1007/978-981-19-7652-0_70
M3 - 会议稿件
AN - SCOPUS:85147997210
SN - 9789811976513
T3 - Lecture Notes in Electrical Engineering
SP - 787
EP - 796
BT - Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum
PB - Springer Science and Business Media Deutschland GmbH
T2 - 10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022
Y2 - 9 October 2022 through 10 October 2022
ER -