Multi-objective Optimized Design for Intermediate-Frequency Noise Reduction in Aircraft Cabins

A multi-objective optimized noise reduction design strategy for aircraft cabins was formulated and a mathematical model of multi-objective structural optimization was established based on the dynamic response and acoustic radiation equations of the structure. Later, the finite element and statistica...

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Bibliographic Details
Published in:Wireless personal communications 2018-10, Vol.102 (4), p.3737-3747
Main Authors: Gao, Jie, Qiang, Ning
Format: Article
Language:English
Subjects:
Acoustic noise
Aircraft
Aircraft compartments
Aircraft design
Aircraft noise
Algorithms
Communications Engineering
Computer Communication Networks
Computer simulation
Design optimization
Dynamic response
Engineering
Finite element method
Frequencies
Mathematical models
Multiple objective analysis
Networks
Noise control
Noise reduction
Optimization algorithms
Signal,Image and Speech Processing
Sound pressure
Sound waves
Statistical energy analysis
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Summary:A multi-objective optimized noise reduction design strategy for aircraft cabins was formulated and a mathematical model of multi-objective structural optimization was established based on the dynamic response and acoustic radiation equations of the structure. Later, the finite element and statistical energy analysis of the simplified hybrid simulation model of the aircraft cabin section was conducted to identify noise sources in aircraft cabin under different excitation conditions. A multistage optimization task was set up using the collaborative optimization algorithm, and an overall optimization process was designed for multi-objective optimization calculation and analysis. Results were compared with non-optimized results to verify the validity of the proposed optimization algorithm. Calculated results demonstrated that the proposed multi-objective optimized design can reduce sound pressure in aircraft cabin effectively, with an average reduction of 3–4 dB in the intermediate-frequency band.
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-018-5405-2