摘要
基于 Ｈ∞控制理论，建立了结构振动声辐射反馈力控制模型，将反馈控制器设计问题转化为标准 Ｈ∞控制问题求解。建立了一套以 ＴＭＳ３２０Ｃ３０数字信号处理芯片为核心的封闭空间弹性壁振动声辐射Ｈ∞控制实验系统。实验取得了在指定频带上噪声最大下降 ７ ｄＢ的良好效果。ＰＡＣＳ数： ４３．２０， ４３．４０， ４３．
Based on the H∞ control theory, the feedback control model of structure-acoustic system is presented in this papers the feedback controller design problem is transformed into the H∞ standard problem to solve. A H∞control system for enclosed space is also build up, which is based on the TMS320C30 DSP board. In experiment, the noise has been reduced 7 dB(A) in assigned frequency band.
出处
《声学学报》
EI
CSCD
北大核心
2000年第5期472-475,共4页
Acta Acustica
基金
国家自然科学基金资助!(编号:59975017)
