微穿孔板吸声结构在阶梯教室中的声反射和声吸收性能分析  

Analysis and pplication for sound reflecting and absorbing characteristics of the microperforated panel sturctures in leature theatre

作　　者：陆凤华[1] 籍仙蓉[1] 王佐民[2] 

机构地区：[1]太原理工大学建筑与土木工程学院,太原030024 [2]同济大学声学研究所,上海200092

出　　处：《声学学报》2006年第3期222-227,共6页Acta Acustica

基　　金：国家自然科学基金(50578101);山西省科技攻关项目(033073);山西省自然科学基金(20041063)资助项目

摘　　要：依据马大猷教授的微穿孔板基本理论,在对微穿孔板吸声结构完成吸声理论计算结果的基础上,进行参数选择并设计了微穿孔吸声反射板结构,用于新建的阶梯教室中。分析了这种微穿孔吸声反射板结构在阶梯教室中的声反射和声吸收的性能。经现场测试与主观评价,表明了此方法对阶梯教室控制音质效果的有效性和可行性。Besed on MAA Dah-You＇s general theory of microperforated panel,the theoretical result of sound absorption coefficient of the microperforated panel absorber sturcture are selected. It is applied to design the controlling building acoustics in the new university classroom. Sound reflecting and absorbing characteristics of the microperforated sturcture in the new leature theatre were investigated. The results of field testing and subjective assessment show that the fulfilling acoustical performance of the classroom have been achieved. All these proved the validity and feasibility of the method to controlling of acoustics in the leature theotre.

关 键 词：微穿孔板 阶梯教室 吸声结构 声反射 吸收性能 计算结果 参数选择 主观评价 现场测试 音质效果 

分 类 号：TU112[建筑科学—建筑理论]