摘要
微穿孔—蜂窝结构的吸声性能主要受微孔板厚度、微孔直径、穿孔率、微孔形状、背后空腔、蜂窝形状、蜂窝芯层高度、蜂窝蜂房边长和壁厚等参数的影响。本文以共振频率、吸声系数峰值、平均吸声系数和理论吸声带宽等指标作为衡量标准来判断这些参数对微穿孔—蜂窝结构吸声性能的影响。同时建立了有限元模型对分析结果进行了验证,并通过设计不同参数的正交试验分析了各因素之间的相互影响以及主次关系。
The sound absorption performance of the microperforated-honeycomb structure is mainly restricted by such parameters as the thickness,diameter,perforation rate,shape and cavity at the back of the microporous plate,and shape,core height,cell side length and wall thickness of the honeycomb structures.Based on the perspectives of resonance frequency,peak value of sound absorption coefficient,average sound absorption coefficient and theoretical sound absorption bandwidth,the influence of these parameters on the sound absorption performance of microperforated honeycomb structure was investigated.Subsequently,a finite element model was developed to validate the proposed analytical model.The mutual influence and primary and secondary relationship among the factors were studied via orthogonal test.
作者
张磊
谢芳
张城森
杨颖慧
桂洪斌
巩庆涛
ZHANG Lei;XIE Fang;ZHANG Chengsen;YANG Yinghui;GUI Hongbin;GONG Qingtao(School of Ocean Engineering,Harbin Institute of Technology,Weihai 264209,China;Ulsan Ship and Ocean College,Ludong University,Yantai 264025,China)
出处
《舰船科学技术》
北大核心
2024年第11期63-69,共7页
Ship Science and Technology
关键词
微穿孔
蜂窝结构
吸声
正交试验
microperforation
honeycomb
sound absorption
orthogonal test
