噪声与振动控制
譟聲與振動控製
조성여진동공제
Noise and Vibration Control
2015年
5期
65-68
,共4页
韩敬永%于开平%宋海洋%杨雨超
韓敬永%于開平%宋海洋%楊雨超
한경영%우개평%송해양%양우초
声学%整流罩%蜂窝夹层板%三明治夹芯板理论%噪声振动预示
聲學%整流罩%蜂窩夾層闆%三明治夾芯闆理論%譟聲振動預示
성학%정류조%봉와협층판%삼명치협심판이론%조성진동예시
acoustics%fairing%honeycomb sandwich panel%sandwich theory%noise and vibration prediction
针对整流罩主体结构由蜂窝板结构构成的特点,在使用统计能量分析法进行整流罩结构高频振动噪声环境预示研究时,重点对蜂窝夹层板建模的三明治夹芯板理论、等效板理论和蜂窝板理论三种等效方法进行比较分析。采用蜂窝夹层板的三种不同等效理论对整流罩整尺度结构进行统计能量分析建模,并将预示结果与在混响室内进行的该整流罩声振实验结果进行对比,分析表明三明治夹芯板理论更适用于研究蜂窝板的高频振动特性。
針對整流罩主體結構由蜂窩闆結構構成的特點,在使用統計能量分析法進行整流罩結構高頻振動譟聲環境預示研究時,重點對蜂窩夾層闆建模的三明治夾芯闆理論、等效闆理論和蜂窩闆理論三種等效方法進行比較分析。採用蜂窩夾層闆的三種不同等效理論對整流罩整呎度結構進行統計能量分析建模,併將預示結果與在混響室內進行的該整流罩聲振實驗結果進行對比,分析錶明三明治夾芯闆理論更適用于研究蜂窩闆的高頻振動特性。
침대정류조주체결구유봉와판결구구성적특점,재사용통계능량분석법진행정류조결구고빈진동조성배경예시연구시,중점대봉와협층판건모적삼명치협심판이론、등효판이론화봉와판이론삼충등효방법진행비교분석。채용봉와협층판적삼충불동등효이론대정류조정척도결구진행통계능량분석건모,병장예시결과여재혼향실내진행적해정류조성진실험결과진행대비,분석표명삼명치협심판이론경괄용우연구봉와판적고빈진동특성。
Three modeling methods of honeycomb panels were studied. The sandwich theory, equivalent plate theory and honeycomb plate theory were compared one another using statistical energy analysis for prediction of high-frequency noise and vibration environment of faring structures. The statistical energy analysis models based on the three equivalent theories were established for the whole-scale fairing structure. The prediction results were compared with the experimental data tested in a reverberation chamber. This study indicates that the sandwich theory is more suitable for studying the high-frequency vibration characteristics of the honeycomb panels than the others.