[1]胡如夫,李普,孙庆鸿,等.结构振动噪声的H∞反馈力控制研究[J].东南大学学报(自然科学版),2004,34(2):232-234.[doi:10.3969/j.issn.1001-0505.2004.02.021]
 Hu Rufu,Li Pu,Sun Qinghong,et al. H∞ feedback force control study for structure-acoustic system[J].Journal of Southeast University (Natural Science Edition),2004,34(2):232-234.[doi:10.3969/j.issn.1001-0505.2004.02.021]
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结构振动噪声的H反馈力控制研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第2期
页码:
232-234
栏目:
数学、物理学、力学
出版日期:
2004-03-20

文章信息/Info

Title:
H feedback force control study for structure-acoustic system
作者:
胡如夫12 李普1 孙庆鸿1 陈南1
1 东南大学机械工程系, 南京 210096; 2 宁波高等专科学校机械系, 宁波 315016
Author(s):
Hu Rufu12 Li Pu1 Sun Qinghong1 Chen Nan1
1 Department of Mechanical Engineering, Southeast University, Nanjing 210096, China
2 Department of Mechanical Engineering, Ningbo College, Ningbo 315016, China
关键词:
H控制 主动控制 封闭空间 结构-声耦合
Keywords:
H control active control enclosed space structural acoustical coupling
分类号:
TB535
DOI:
10.3969/j.issn.1001-0505.2004.02.021
摘要:
基于H控制理论,采用次级力作为执行器,应用反馈控制来抑制结构振动噪声,建立了结构振动声辐射反馈力控制模型,引入了性能加权函数,得到了广义系统模型,将反馈控制器设计问题转化为标准H控制问题求解.同常用的自适应滤波前馈控制相比,这种方案不需要用参考信号、不存在声反馈问题.封闭空间结构振动声耦合反馈力控制仿真结果表明:通过合理选择性能加权函数,噪声可以在指定频带得到良好的控制,最大噪声峰值近20 dB(A).
Abstract:
The feedback control model of structure-acoustic system is presented in this paper using force actuator via H control theory, and the augmented plant is presented by introducing performance weighting function. The feedback controller design scheme is transformed into the solution of a H standard problem. In comparison with the normal adaptive active noise control scheme, the reference signal is not needed and the sound feedback problem is no longer existent in the proposed scheme. Simulation results for the structural acoustical coupling in enclosed space show that the structure-brone noise can be reduced effectively in assigned frequency band, the maximum control value for noise peak value is near 20 dB(A).

参考文献/References:

[1] 陈克安, 马远良.自适应有源噪声控制——原理、算法及实现[M].西安:西北工业大学出版社,1993.89-94.
[2] 孙庆鸿,李普.智能结构声控制研究的新进展[J].东南大学学报(自然科学版),2002,32(3):392-396.
  Sun Qinghong,Li Pu.Research advance in intelligent structure acoustic control[J]. J of Southeast University(Natural Science Edition),2002,32(3):392-396.(in Chinese)
[3] Safonov G,Limebeer D J N,Chiang R C.Simplifying the H theory via loop-shifting,matrix-pencil and descriptor concepts [J].International J of Control,1989,50(6):2467-2488.
[4] Doyle J C,Glover K.State-space solution to standard H and H control problems [J].IEEE Trans Automat Contr, 1989,Ac-34:831-847.
[5] 李普,孙庆鸿,陈南.振动系统复合摄动的鲁棒H控制研究[J].振动工程学报,2001,14(1):118-121.
  Li Pu,Sun Qinghong,Chen Nan.Robust H control for active vibration system with mixed uncertainty [J].Journal of Vibration Engineering, 2001,14(1):118-121.(in Chinese)
[6] Dowell E H,Gorman III G F,Smith D A.Acoustoelasticity:general theory,acoustic natural modes and forced response to sinusoidal excitation,including comparisons with experiment [J].J Sound and Vib, 1977,54(1):519-542.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50375027)、宁波市青年基金资助项目(203A62001).
作者简介: 胡如夫(1966—),男,博士生,副教授; 孙庆鸿(联系人),男,教授,博士生导师,qhsun@seu.edu.cn.
更新日期/Last Update: 2004-03-20