Compressor Noise Control Using Shaped Piezo-actuators

采用异型压电作动器对压缩机噪声进行了控制实验和分析研究。实验得到了不同形状的压电致动器的等效力、波数和模态耦合特性。为了验证这些观察结果，开发了一种基于有限元方法的公式。压电致动器安装在家用空调机组中常用的压缩机上，以证明该开发的有效性。

A set of experimental and analytical studies is conducted to control compressor noise using shaped piezo actuators. Experiments are conducted to obtain equivalent forces exerted by piezo-actuators, wave numbers, and mode coupling characteristics of different shapes. A finite element method based formulation is developed to verify these observations. Piezo actuators are mounted on compressors commonly used in household air-conditioning units to prove the effectiveness of the developments.