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姓名 謝忠翰(Chung-Han Hsieh) 查詢紙本館藏 畢業系所 土木工程學系 論文名稱 顆粒運動之聲音監測 相關論文 檔案 [Endnote RIS 格式] [Bibtex 格式] [相關文章] [文章引用] [完整記錄] [館藏目錄] [檢視] [下載]
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摘要(中) 土石流運動有明顯之聲音產生,本研究先在實驗室進行定性研究,量測不同材質顆粒運動所發出的聲音,分析其音壓值找出顆粒聲音頻率特性與能量大小關係。本研究運用二組實驗,分別使用玻璃珠、BB 彈、細磨石與蛙沙,找到其顆粒固定頻率。比較不同材質撞擊產生音壓能量依序為玻璃珠最大,其次BB 彈,最小為細磨石。材質相同時粒徑越大,則能量越強。因運動狀態不同垂直運動,聲音發聲點在圓筒底部,及蛙沙在速度慢時摩擦底面、邊壁與兩端堆積發聲,在速度快時則顆粒互相碰撞發聲。蛙沙能量圖形為向上凹曲線,以加速度在1.25G 時能量最小。
摘要(英) The motion-induced acoustic signals for different granular particles are experimentally measured in this study. The variation of sound pressures and the corresponding peak frequencies under different forcings are analyzed. Two groups of test are adopted for the granular materials
such as the glass bead, the polypropylene bead, the mill stone and the frog sand. The glass beads generate largest impacting sound pressure, the polypropylene beads in between, and the sound pressure for the mill stones is smallest. The sound pressure increases with particle size for the same material. The sound pressure for frog sand exhibits a peak value at the acceleration of 1.25G.
關鍵字(中) ★ 麥克風
★ 加速度計
★ 蛙沙
★ 土石流
★ 監測系統關鍵字(英) ★ acoustic signals
★ granular particles
★ squeaking sand
★ acceleration.論文目次 摘要.................................................... Ⅰ
Abstract ............................................... II
誌謝................................................... III
目錄.................................................... IV
圖目錄................................................. VII
表目錄.................................................. XV
第一章 緒論.............................................. 1
1-1 前言................................................. 1
1-2 研究動機與目的....................................... 2
1-3 研究方法............................................. 3
1-4 論文架構............................................. 4
第二章 文獻回顧.......................................... 6
2-1 土石流特性........................................... 6
2-1.1 流動特性........................................... 6
2-1.2 流動型態........................................... 9
2-1.3 顆粒分離........................................... 9
2-2 聲音特性............................................ 10
2-2.1 波的參數.......................................... 10
2-2.2 聲音的傳遞........................................ 11
2-2.3 聲音的特性........................................ 11
2-2.4 聲音在空氣中的速度................................ 13
2-2.5 次聲的聲音特性.................................... 14
2-3 顆粒運動特性........................................ 16
2-4 沙鳴的產生.......................................... 20
第三章 理論分析......................................... 25
3-1 分析方法............................................ 25
3-1.1 傅立葉轉換(Fourier Transform) .................. 25
3-1.2 快速傅立葉轉換(Fast Fourier Transform)頻率分析...................................................... 26
3-2 顆粒分析方法........................................ 27
第四章 實驗儀器配置..................................... 30
4-1 實驗目的............................................ 30
4-2 實驗配置............................................ 31
4-2.1 量測儀器介紹...................................... 31
4-2.2 圓筒聲音實驗...................................... 37
4-2.3 蛙沙聲音實驗...................................... 41
4-3 實驗方法與步驟...................................... 42
4-3.1 圓筒.............................................. 42
4-3.2 蛙沙.............................................. 45
4-4 實驗分析軟體........................................ 47
第五章 結果與討論....................................... 50
5-1 圓筒實驗結果........................................ 50
5-1.1 不同材質顆粒運動音頻分析比較...................... 96
5-1.2 同材質不同粒徑音頻分析比較........................ 96
5-1.3 顆粒運動發聲能量及頻率與加速度關係................ 97
5-2 蛙沙實驗結果........................................ 99
5-2.1 蛙沙運動音頻分析.................................. 99
5-2.2 蛙沙發聲點與運動位置的關係....................... 109
5-2.3 蛙沙運動發聲能量及頻率與加速度關係............... 110
第六章 結論與建議...................................... 113
6-1 結論............................................... 113
6-2 建議............................................... 114
參考文獻............................................... 115
附錄................................................... 120
參考文獻 1. Bagnold, R.A.(1966),"The shearing and dilatation of dry sand and the `singing'mechanism," Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 225, No. 1160. (Aug. 6, 1954), pp. 49-63.
2. Benson K. Muite, Shandon F. Quinn and Sankaran Sundaresan(2004),"Silo Music and Silo Quake: Granular Flow Induced Vibration," Powder Technology 145 pp.190-202, 2004.
3. Chris Wensrich,"Experimental behaviour of quaking in tall silos," Powder Technology 127 (2002) pp.87–94.
4. Cook, R.K. and J.M. Young ( 1962 ) ,"Strange Sounds in the Atmosphere-Part2,"Sound Vo.1,pp.25-33,The Acoustical Society Of America
5. Daniel M. Hanes, Otis R. Walton ( 2000 ) ,"Simulations and physical measurements of glass spheres flowing down a bumpy incline," Powder Technology 109 pp.133-144, 2000.
6. Ernest D. Scott, Christopher T. Hayward, Robert F. Kubichek, Jerry C. Hamann, John W. Pierre(2007),"Results of recent infrasound avalanche monitoring studies,"Cold Regions Science and Technology 47,2007,pp159-170.
7. Groupement De Rechereche Milieux Divises(2004),"On dense granular flows,"The European Physical Journal E Manuscript.
8. Gwenaelle Felix,Nathalie Thomas(2004),"Relation between dry ganular flow regimes and morphology of deposits:formation of levees in pyroclastic deposits,"Earth and Planetary Science Letters 221 pp.197-213,2004.
9. Hardow B., Schlze D., Schwedes J.,"An Experimental Analysis of the `Silo Quaking' phenomenon,"Proc. Of the 3rd World Congress on Particle Technology, Brighton, England(1998).
10. Jahagirdar S.,"An Experimental Study of Sound Emission during Granular Flow," Department of Chemical Engineering, Indian Institute of Science, Bangalore, India(1999).
11. J.M. Buick, J. Chavez-Sagarnaga, Z. Zhong, J.Y. Ooi, D.M. Campbell, and C.A. Greated,"Investigation of Silo Honking:Slip-Stick Excitation and Wall Vibration,"J. Engrg. Mech.Volume 131,Issue 3,pp.299-307(March 2005).
12. Hidaka,J.,Miwa,S.,Makino,K."Mechanism of generation of sound in shear flow of granular materials," International Chemical Engineering,Vol.28,No.1,99-107(1988).
13. Mark A. Zumberge, Jonathan Berger, Michael A.H. Hedlin, Eric Husmann, and Scott Nooner(2003)," An optical fiber infrasound sensor: A new lower limit on atmospheric pressure noise between 1 and 10 Hz," J. Acoust. Soc. Am.,Vol.113, No.5,May 2003.
14. Paul Sholtz, Michael Bretz and Franco Nori ( 1997 ) ,"Sound-producing sand avalanches,"Contemporary Physics, 1997, volume 38, number 5, pages 329-342
15. Rayleigh J.W.S.,“The Theory of Sound vol. II,"Dover
Publications (1945).
16. Shigeo Miwa, http://bigai.world.coocan.jp/msand/index.html
17. Sungjin Park, Fredric M. Ham, Christopher G. Lowrie,"
Discrimination of infrasound events using parallel neural network classification banks," Nonlinear Analysis 63 (2005) e859–e865.
18. S. Douady, A. Manning, P. Hersen, H. Elbelrhiti, S. Protiere, A. Daerr, B Kabbachi,"Song of the Dunes as a Self-Synchronized Instrument," The American Physical Society, PRL 97, 018002 (2006).
19. 周憲德(2003),"坡地災害次聲特性及監測系統之研究,"行政院農會委員會水土保持局計畫。
20. 周憲德(2005),"次聲於坡地災害監測之應用,"行政院農會委員會水土保持局計畫。
21. 劉格非、李欣輯(1999),"地聲探測器應之初步研究,"第二屆土石流研討會論文第84-93 頁。
22. 劉格非、李欣輯(2000),"地聲探測器之應用," 第二屆兩岸山地災害與環境保育學術研討會,第161-169 頁。
23. 章書成、洪勇、餘斌(2002),"泥石流次聲特性及警報裝置,"中國科學院、水利部成都山地災害與環境研究所。
24. 黃清哲、張友龍、章書成(2005),"土石流運動時之次聲特性監測及分析,"中華水土保持學報,,第36 卷第3 期,233-238 頁。
25. 詹錢登(2000),"土石流概論,"科技圖書。
26. 方耀民、周天穎、李秉乾(2008)," 防災監測技術新思維," 農業資訊科技應用研討會論文集,2008。
27. 蔡國隆、王光賢、塗聰賢(2005),"聲學原理與噪音量測控制,"全華圖書。
指導教授 周憲德(Hsien-Ter Chou) 審核日期 2010-8-1 推文 facebook plurk twitter funp google live udn HD myshare reddit netvibes friend youpush delicious baidu 網路書籤 Google bookmarks del.icio.us hemidemi myshare