[1]高行山,雷平..飞机座舱减振降噪优化设计方法[J].郑州大学学报(工学版),2006,27(04):97-100.[doi:10.3969/j.issn.1671-6833.2006.04.024]
　Gao Xing Mountain,Lepin.Optimization design method of aircraft cabin vibration and noise reduction [J].Journal of Zhengzhou University (Engineering Science),2006,27(04):97-100.[doi:10.3969/j.issn.1671-6833.2006.04.024]
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飞机座舱减振降噪优化设计方法()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
27
期数:
2006年04期
页码:
97-100
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Optimization design method of aircraft cabin vibration and noise reduction

作者:
高行山; 雷平.
西北工业大学工程力学系,陕西,西安,710072, 西北工业大学工程力学系,陕西,西安,710072
Author(s):
Gao Xing Mountain; Lepin
关键词:
飞机座舱;  振动;  噪声;  拓扑优化
Keywords:
DOI:
10.3969/j.issn.1671-6833.2006.04.024
文献标志码:
A
摘要:
基于变密度拓扑优化方法和声-结构耦合系统有限元模型,对四角固支箱体模拟的飞机座舱进行了减振降噪分析.通过数值模拟,对结构质量和刚度特性优化配置使结构的固有频率避开激振频率,从而避免共振.通过比较优化前后结构固有频率的变化和对声压的影响,验证了拓扑优化在结构减振降噪方面的可行性和有效性.这种方法对飞机座舱减振降噪设计具有一定的参考价值.
Abstract:
Based on the variable density topology optimization method and the finite element model of acoustic-structure coupling system, the vibration and noise reduction analysis of the aircraft cockpit simulated by the four-corner solid support box was analyzed. Through numerical simulation, the structure quality and stiffness characteristics are optimally configured so that the natural frequency of the structure avoids the excitation frequency, thereby avoiding resonance. By comparing the changes of the natural frequency of the structure and the influence on sound pressure before and after optimization, the feasibility and effectiveness of topology optimization in structural vibration and noise reduction are verified. This method has certain reference value for the design of vibration and noise reduction in aircraft cockpit.

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更新日期/Last Update: 1900-01-01