Active Absorption of Perforated Plate Based on Airflow

作     者：ZHANG Renqi ZHU Congyun DING Guofang HUANG Qibai 张仁琪;朱从云;丁国芳;黄其柏

作者机构：School of Mechatronics EngineeringZhongyuan University of TechnologyZhengzhou 450007China School of Mechanical Science&EngineeringHuazhong University of Science and TechnologyWuhan 430074China 

出 版 物：《Journal of Donghua University(English Edition)》 (东华大学学报（英文版）)

年 卷 期：2022年第39卷第6期

页      面：590-596页

学科分类：12[管理学] 083002[工学-环境工程] 1204[管理学-公共管理] 120402[管理学-社会医学与卫生事业管理(可授管理学、医学学位)] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0837[工学-安全科学与工程] 

基　　金：National Natural Science Foundation of China(No.51705545) 

主　　题：airflow perforated plate resonance absorption coefficient active absorption 

摘      要：The theory of active absorption of the perforated plate is proposed in this *** perforated plate is used as the material of active absorption and the depth of the cavity behind the perforated plate is changed according to the resonant frequency of the perforated *** rigid wall is moved to produce resonance so that the absorption coefficient can reach the maximal *** is shown from the numerical calculation that when the perforated plate resonates,the moving distance is large at low frequencies,and the absorption coefficient is low under certain *** plate resonance is effective for single frequency of incident sound wave,which is difficult for the wide frequency,so active absorption based on airflow is posed,and the numerical calculation and experiment are carried *** results denote that this method of active absorption is practical.