<address id="xrvvb"><listing id="xrvvb"></listing></address>

          <form id="xrvvb"></form>

          <address id="xrvvb"></address>

          華中科技大學學報(自然科學版) 2020, Vol. 48 Issue (12): 55-60 DOI10.13245/j.hust.201210

          欄目:機械工程
          管殼式換熱器管程消聲性能分析
          龔京風 a , 江致遠 a , 袁興軍 b , 宣領寬 b
          a. 武漢科技大學汽車與交通工程學院,湖北 武漢 430065
          b. 中國艦船研究設計中心船舶振動噪聲重點實驗室,湖北 武漢 430064
          摘要 為了分析利用換熱器管程降低上游流噪聲的可行性,試驗分析管殼式換熱器的消聲性能,基于頻域有限元法建立了管殼式換熱器管程聲學性能數值預報方法.對比基于純聲場模型和聲-結構耦合模型計算得到的結果,分析換熱器管程傳遞損失及聲-結構耦合效應的影響,通過在進口設置插入管嘗試改善換熱器管程消聲性能.結果表明:管殼式換熱器管程具備消聲能力,在1階通過頻率前消聲量較小,在1階通過頻率后具有明顯的消聲效果;聲-結構耦合效應使得傳遞損失曲線向低頻方向移動;通過合理設置插入管長度,可以有效提高1階和2階通過頻率處的消聲量.
          關鍵詞 換熱器 ;水管路 ;消聲性能 ;聲-結構耦合 ;仿真分析
          Analysis of acoustic attenuation performance of shell and tube heat exchangers
          GONG Jingfeng a , JIANG Zhiyuan a , YUAN Xingjun b , XUAN Lingkuan b
          a. School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430065,China
          b. State Key Laboratory of Ship Vibration and Noise,China Ship Development and Design Center,Wuhan 430064,China
          Abstract In order to analyze the feasibility of reducing upstream low frequency flow noise using the tube side of heat exchangers,the acoustical performance of shell and tube heat exchanger was studied experimentally,and numerical prediction methods based on frequency domain finite element method were established.By comparing the results obtained from the pressure acoustic physics module and the acoustic-structure interaction physics module,the transmission loss (TL) in the tube side of heat exchanger was analyzed,and the effects of the acoustic-structural coupling were discussed.The influences of inserted tubes on the TL were studied.It is found that the pipe side of the shell and tube type heat exchanger has the capability of noise elimination,and the tube side of heat exchanger is of small noise attenuation before the first passing frequency,while has obvious noise reduction after the first passing frequency in the calculated frequency band.The acoustic-structure coupling makes the TL curve move to the lower frequency band.By designing and arranging an appropriated inserted tube,the noise attenuation can be increased at the first and the second passing frequencies.
          Keywords heat exchanger ; tube ; acoustic attenuation performance ; acoustic-structure interaction ; simulation analysis
          基金資助國家自然科學基金資助項目(51909197);湖北省自然科學基金資助項目(2019CFB136);武漢科技大學2019年度國防預研基金資助項目(GF201911).

          中圖分類號TB535
          文獻標志碼A
          文章編號1671-4512(2020)12-0055-06
          參考文獻
          [1]戴俊,蘇勝利.艦船通海管路低頻消聲技術的研究進展[J].艦船科學技術,2016,38(5):7-11.
          [2]連華英.管殼式換熱器振動的預測[J].煉油設備設計,1984(4):10-16.
          [3]周國成.管束流致振動與噪聲特性研究[D].哈爾濱:哈爾濱工程大學圖書館,2010.
          [4]CAO Y P,KE H B,LIN Y S,et al.Investigation on the flow noise propagation mechanism in pipelines of shell-and-tube heat exchangers based on synergy principle of flow and sound fields[J].Applied Thermal Engi- neering,2017,122:339-349.
          [5]蘇勝利,王強勇.水管路消聲器聲學性能的時域計算及分析[J].艦船科學技術,2016,38(2):65-68.
          [6]周城光,劉碧龍,李曉東,等.腔壁彈性對充水亥姆霍茲共振器聲學特性的影響:圓柱形腔等效集中參數模型[J].聲學學報,2007,32(5):426-434.
          [7]龔京風,宣領寬,周健,等.結構聲耦合對膨脹腔水消聲器聲學性能的影響[J].哈爾濱工業大學學報,2018,50(10):189-193.
          [8]XUAN L K,LIU Y,GONG J F,et al.A time-domain finite volume method for the prediction of water muffler transmission loss considering elastic walls[J].Advances in Mechanical Engineering,2017,9 (2):1-9.
          [9]黃繼嗣.內燃機排氣消聲器聲學和阻力特性研究[D].哈
          爾濱:哈爾濱工程大學圖書館,2006:15-20.
          [10]袁啟慧.基于Virtual.Lab的汽車排氣消聲器性能仿真研究[D].重慶:重慶交通大學圖書館,2013:35-44.
          [11]周振威,吳家鳴.雙層板內插微穿孔板的隔聲性能[J].華中科技大學學報(自然科學版),2018,46(10):57-62.
          [12]馬大猷.噪聲與振動控制工程手冊[M].北京:機械工業出版社,2002:377.
          [13]DU T,LI S Y,LIU J T,et al.Acoustic performance of a water muffler[J].Noise Control Engineering Journal,2015,63(3):239-248.
          [14]CHANG Y C,CHIU M C,HUANG S E.Numerical analysis of circular straight mufflers equipped with three chambers at high-order-modes[J].Applied Acoustics,2019,155:167-179.
          [15]孫玉東,鐘榮,王鎖泉,等.基于雙端口聲源特性測試方法的離心泵水動力噪聲試驗研究[J].船舶力學,2016,20(1/2):198-205.
          [16]韓雷,季宏麗,裘進浩,等.兩級串聯擴張腔式消聲器聲學特性的分析[J].應用力學學報,2018,35(1):60-64.
          [17]杜功煥,朱哲民,龔秀芬.聲學基礎[M].3版.南京:南京大學出版社,2012.
          文獻來源
          龔京風, 江致遠, 袁興軍, 宣領寬. 管殼式換熱器管程消聲性能分析[J]. 華中科技大學學報(自然科學版), 2020, 48(12): 55-60
          DOI:10.13245/j.hust.201210
          澳门盘口