摘要
本文详细论述了采用自适应滤波技术实现结构振动主动控制的原理和方法，并研制出自适应结构振动主动控制系统。自适应算法为最小均方（ＬＭＳ）算法，硬件是由ＴＭＳ３２０Ｃ２５组成的信号处理系统。运用该系统对一矩形薄板进行了振动主动控制实验，取得了良好的抵消振动效果和降低噪声辐射效果。
In this paper, the adaptive active vibration control system developed by the authors is presented and discussed which consists of TMS320C25 unit and Filtering X-LMS algorithm. By using this system, tests out on a rectangular plate are carried. It shows that, the control system is stable, quickly convergent and satisfactorily adaptive to vibration circumstances. One or two control forces are employed in the test, which are used for resonant or off-resonant vibration control respectively, and the sound reduction as well as vibration attenuation are satisfactory and encouraging.
出处
《振动与冲击》
EI
CSCD
北大核心
1996年第1期18-24,共7页
Journal of Vibration and Shock
基金
博士点基金
关键词
振动
主动控制
自适应
active vibration control,adaptive filtering,secondary source error sensor, sound radiation
