本文選題：穿孔管消聲器 + 傳遞損失�。� 參考：《聲學技術(shù)》2017年01期

【摘要】：傳遞損失作為穿孔管消聲器聲學性能的評價指標,可以采用有限元法計算。文章提出數(shù)值聯(lián)合仿真方法計算其傳遞損失,并與試驗結(jié)果進行對比驗證。進而采用該方法結(jié)合正交實驗法研究多腔穿孔管消聲器傳遞損失參數(shù)靈敏度。研究結(jié)果表明,數(shù)值聯(lián)合仿真方法可以準確計算穿孔管消聲器傳遞損失,比傳統(tǒng)方法節(jié)省2/3的時間。在中頻段,進出口管半徑、擴張腔半徑和第一腔結(jié)構(gòu)參數(shù)對多腔穿孔管消聲器傳遞損失影響明顯。
[Abstract]:Transmission loss can be calculated by finite element method as an evaluation index of acoustic performance of perforated tube muffler. In this paper, a combined numerical simulation method is proposed to calculate the transfer loss, and the results are compared with the experimental results. Furthermore, the sensitivity of transmission loss parameters of multi-cavity perforated tube muffler is studied by using this method and orthogonal experiment. The results show that the combined numerical simulation method can accurately calculate the transmission loss of the perforated tube muffler and save 2 / 3 of the time compared with the traditional method. In the middle frequency band, the radius of the inlet and outlet tube, the radius of the expanded cavity and the structure parameters of the first cavity have a significant effect on the transmission loss of the muffler in the multi-cavity perforated tube.
【作者單位】： 武漢軟件工程職業(yè)學院;江蘇理工學院;北京歐鵬巴赫新能源科技股份有限公司;
【基金】：湖北省職教學會2015年度科學研究項目(ZJGB201512) 常州市科技計劃資助項目(CE20155056)
【分類號】：TB535.2

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本文編號：1819620