复杂封闭空间有源消声压电陶瓷片位置的优化  

Optimum Placement of PZT Patches of Active Noise Control Within an Irregular Cavity

作　　者：王晓峰[1] 饶柱石[1] 耿厚才[1] 

机构地区：[1]上海交通大学振动,冲击,噪声国家重点实验室,上海200030

出　　处：《电声技术》2002年第1期7-10,共4页Audio Engineering

摘　　要：分析了复杂封闭空间有源消声过程中压电陶瓷作动器的位置优化问题,通过建立复杂封闭空间的系统模型,以单对压电陶瓷片在板中心局部杂声场为例,提出了局部目标的控制函数。经过位置优化,在不同扰动频率下都可得到良好的消声效果。In this paper,the optimum placement of PZT patches for active noise control within irregular cavity is analyzed.A control function of locality target is present ed by building up a system model of irregular cavity and by using a single pair of PZT patches located in the local noise field at center of the panel as an example.After optimization of the placement ,good effect of noise reduction is obtained at different disturbing frequencies.

关 键 词：复杂封闭空间 压电陶瓷 位置优化 有源消声 

分 类 号：TM282[一般工业技术—材料科学与工程]