Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/4278
標題: Bezier及OURBS變幅桿的設計及其應用
Design of Bezier and OURBS horns and their applications
作者: 阮澄心
Nguyen, Tam Hai-Dang
關鍵字: 變幅桿的;Bezier horn;置換擴增;優化;B-spline horn;optimization;ultrasonic actuation;displacement amplification
出版社: 精密工程學系所
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Moisan, The state of the art of ultrasonic machining, CIRP Annals – Manufacturing Technology, 30 (1981) 107-110. [5] S.G. Amin, M. H. M. Ahmed and H. A. Youssef, Computer-aided design of acoustic horns for ultrasonic machining using finite-element analysis. Journal of Materials Processing Technology, 55 (1995) 254-260. [6] C.-H. Lee and A. Lal, Silicon ultrasonic horns for thin film accelerated stress testing, in: Proceedings of 2001 IEEE Ultrasonics Symposium, pp. 867– 870. [7] E. Eisner, Design of sonic amplitude transformers for high magnification, The Journal of the Acoustical Society of America, 35 (1963) 1367–1377. [8] A. Bangviwat, H. K. Ponnekanti and R. D. Finch, Optimizing the performance of piezoelectric drivers that use stepped horns, The Journal of the Acoustical Society of America, 90 (1991) 1223–1229. [9] D. Sindayihebura and L. Bolle, Theoretical and experimental study of transducers aimed at low-frequency ultrasonic atomization of liquids, The Journal of the Acoustical Society of America, 103 (1998) 1442–1448. [10] B. N. Nagarkar and R. D. Finch, Sinusoidal horns, The Journal of the Acoustical Society of America 50 (1971) 23–31. [11] K. F. Graff, Wave Motion in Elastic Solids, The Clarendon Press, Oxford, 1995. [12] V. Salmon, A new family of horns, The Journal of the Acoustical Society of America, 17 (1946) 212–218. [13] O.V. Abramov, High-intensity Ultrasonics: Theory and Industrial Applications. Gordon and Breach Science Publishers, The Netherlands, 1998. [14] D. F. Rogers and J. A. Adams, Mathematical Elements for Computer Graphics, second ed., McGRAW-Hill, New York, 1990. [15] J. Woo, Y. Roh, K. Kang and S. Lee, Design and construction of an acoustic horn for high power ultrasonic transducers, in: Proceedings of 2006 IEEE Ultrasonics Symposium, pp. 1922–1925. [17] B. Fu, T. Hemsel and J. Wallaschek, Piezoelectric transducer design via multiobjective optimization, Ultrasonics, 44 (2006) e747–e752. [18] D.-A. Wang, W.-Y. Chuang, K. Hsu and H.-T. Pham, Design of a Bezier-profile horn for high displacement amplification, Ultrasonics, 51 (2011) 148-156. [19] K. Deb, A. Pratap, S. Agarwal and T. Meyarivan, A fast and elitist multiobjective genetic algorithm: NSGA-II, IEEE Transactions on Evolutionary Computation, 6 (2002) 182–197. [20] A. Cardoni, M. Lucas, M. Cartmell and F. Lim, A novel multiple blade ultrasonic cutting device, Ultrasonics, 42 (2004) 69–74. [21] G. Sinn, B. Zettl, H. Mayer and S. Stanzl-Tschegg, Ultrasonic-assisted cutting of wood, Journal of Materials Processing Technology, 170 (2005) 42-49. [22] M. Zhou, X. J. Wang, B. K. A. Ngoi and J. G. K. Gan, Brittle-ductile transition in the diamond cutting of glasses with the aid of ultrasonic vibration, Journal of Materials Processing Technology, 121 (2002) 243-251. [23] B. O''Daly, E. Morris, G. Gavin, J. 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摘要: 
在這篇論文中,我開發了超聲波喇叭具有高排量放大。三次Bezier和開放均勻有理B-spline曲線(OURBS),分別是基於配置文件的號角。超聲波驅動的角利用縱向振動模式的號角。使用的優化方案和有限元分析的角的設計方法。由數控加工過程中的角的原型製造。建議牛角的表演已經通過實驗評估。
與設計過程的基礎上的,實驗結果吻合較好。在超聲波切割穿透力測量顯示貝塞爾喇叭的優勢。標本由喇叭OURBS焊接的熔接強度優於由傳統catenoidal的喇叭和貝塞爾角具有相同的長度和端表面直徑。

In this thesis, I developed ultrasonic horns with high displacement amplification. The profiles of the horn are based on cubic Bezier and open uniform rational B-spline (OURBS) curve, respectively. The ultrasonic actuations of the horns exploit the first longitudinal vibration mode of the horn. A design method of the horns using an optimization scheme and finite element analyses is developed. Prototypes of the horns are manufactured by a numerical control machining process. Performances of the proposed horns have been evaluated by experiments.
The experimental results are in good agreement with those based on the design procedure. Penetration force during ultrasonic cutting is measured to show the advantage of the developed Bezier horn. The weld strength of specimens welded by OURBS horn is better than those by the traditional catenoidal horn and the Bezier horn with the same length and end surface diameters.
URI: http://hdl.handle.net/11455/4278
其他識別: U0005-2008201310570200
Appears in Collections:精密工程研究所

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