當今工業發展蓬勃，除了帶來經濟上的效益，同時也會帶來空氣污染，危害生活品質甚而傷害人體；幸而政府針對空氣污染防制制定各種污染排放物之排放標準，任何工業生產時所排放之污染物皆受到嚴格的控管把關，工廠必須使用空污防制設備，減少污染物排放，既遵守法律亦負起社會責任。靜電集塵器（Electrostatic Precipitator）乃為現今較成熟的空氣污染防治設備技術，其運作流程利用放電極線使灰塵分子離子化後，附著於集塵極板上並經由敲擊系統將灰塵擊落至收集斗槽中廢棄之；對於因燃燒不完全產生之粉塵、微粒等污染物，有良好的收集效率，並已廣泛應用於各種工業上。然而敲擊系統因疲勞破壞，嚴重影響集塵效率。
本研究著重於敲擊系統之動態模擬與分析；根據機械設計圖及參數統整後使用多體運動分析軟體了解敲擊系統之運動機制；進而使用有限元素模擬軟體進行敲擊系統在運動過程中的應力分析，完成整個敲擊系統之動態運動狀態及受力在學理上的了解，同時透過接觸應力分析對模型處理理論值上的驗證，期望提高電腦模型的可信度進而提供業者改善設計之參考方向。更進一步增加擺錘元件質量，思考改變設計後對機構的影響：是否衝擊力度能夠增益且對於元件的負擔是否增加。
根據有限元素法分析得到的應力分布數據，進行各元件的疲勞壽命分析，推斷在一般運動過程中，元件產生破壞的可能位置，提供廠商可以提前進行補強的建議部位或避免最大應力發生的情形，期望增加整體系統的使用壽命。並了解擺錘元件質量增加對敲擊系統壽命之影響。

Industrial growth not only brings economical benefit to the society but also exhaust gas stream in the air. The polluted air might endanger the quality of life and develop a health problem for the human beings. So, to control the air pollution from the plants normally is mandated by the government. In many industries, an electrostatic precipitator (ESP) is a common emission-control device that can remove dust particles from a flowing gas. The performance of the ESP normally depends on proper operation and maintenance of every component in the machine. Among the ESP components, the rapping system provides for removing dust from the collecting plate and the discharge electrodes. Without the proper function of the rapping system, the efficiency of the ESP will reduce or the machine might shut down in the worse scenario. Therefore, there is a need to understand the dynamic behavior of the ESP rapping system

In this thesis, dynamic computer models for the rapping system of the ESP based on multibody dynamics and finite element method are developed to interpret the system behavior during operation. The multibody model is used to understand the kinematic behavior of the system. In the other hand, the finite element model is used to perform the stress analysis for the components in the rapping system. In comparison with the actual operation, the results show a good agreement and the models are validated. Two sets of analysis based on this developed model are conducted in the study. The first one is to understand the relationship between impact force and impact mass. Since the fatigue problem is common for the rapping system, the fatigue analysis based on the simulation results is performed in the second one. Accordingly, the expected life for the components in the rapping system can be predicted. Based on these results from the analysis, the advanced technical capability for designing and maintaining the rapping system can be provided based on this study. As a result, the efficiency of the ESP and the quality of the air can be improved.

ANSYS. (2009) ANSYS Verification Manual, Pittsburg, PA, ANSYS Inc., USA.

Drumwright, E. (2008) ”A fast and stable penalty method for rigid body simulation,” IEEE Trans. Vis. Comput. Graph,14(1),pp231-240.

Japanese Industrial Standards Committee. (2005) “Cold-reduced carbon steel sheet and strip,” JISG3141 .

Juvinall,R.C. and Marshek,K.M. (2006) Fundamentals of Machine Component Design, 4th edition, John Wiley & Sons,Inc. ,USA.

Lillieblad, L, Thimanson, M., Porle, K. and Kirsten, M. (2001) ”On dust cake removal in Electrostatic precipitator,” 8th International Conference on Electrostatic Precipitator, Birmingham USA, May 14-17.

Lloyd. (1988) Electrostatic Precipitator Handbook, Adam Hilger. USA.

LS-DYNA. (2009) Keyword User’s Manual Version 971, Livermore Software Technology Corporation. ,USA.

MATLAB. (2007) MATLAB Reference Guide, Natick ,MA, The Mathworks Inc. ,USA

Misaka, T. ,Kawabata, S. ,and Yabuta, H. (1993)”Application of moving electrode type electrostatic precipitator for high resistivity dust,” Proc. of 6th Asian Conf. on Electrical Discharge, Oita, Japan, pp 245-248

Misaka, T. ,Oura, T. , and Yamazaki, M. (2006)”Improvement of reliability for moving electrode type electrostatic precipitator,” ICESPX, Australia, paper No. 9A1

Nowak, A. and Wojciech, S. (2004) “Optimisation and experimental verification of a dust-removal beater for the electrostatic precipitators,” Computer and Structures, 82, pp.1785-1792

Shimizu, T. and Sano, T. (1995) “An application of a penalty method contact and friction algorithm to a 3-Dimensional tool surface expressed by a B-spline patch,” Journal of Materials Processing Technology, 48, pp.207-213.

Tumati P.R. (1993) “Evaluation of ESP rapper performance and optimum rapping force.” 10th Particulate Control Symposium, Washington D.C. USA.April 5-8.

Vulovic, S., Zirkovic, M., and Grujovic, (2008) ”Contact problems based on the penalty method,” Scientific Technical Review, vol. L.VIII, pp33-37.

Wong,J.Y. (2001) Theory of Ground Vehicles,3rd edition,USA John Wiley & Sons,Inc.

台耘工業，(2007) 靜電集塵器運轉維護與改善實務。靜電集塵器運轉維護與改善實務研討會。台耘工業舉辦。高雄。民國九十六年六月六日舉行。

行政院環境保護署，(2010) 環保白皮書九十九年版。初版。台北。
行政院環境保護署。

行政院環境保護署，(2011) 空氣污染防制法。網址：http://ivy5.epa.gov.tw/epalaw/index.aspx,日期：民國100年7月

李健彰，(2000) 引伸成形加工問題之有限元素分析。碩士論文。桃園：國立中央大學機械工程研究所。

許金和，(1996) 靜電集塵器與出灰系統。初版。高雄。高雄復文圖書出版社。

傅増隸，(2004) 電腦輔助工程設計－ADAMS基礎應用手冊。初版。台北。高立圖書有限公司。