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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 黃光裕(Kuang-Yuh Huang) | |
dc.contributor.author | Meng-Ru Wu | en |
dc.contributor.author | 吳孟儒 | zh_TW |
dc.date.accessioned | 2021-06-16T13:03:55Z | - |
dc.date.available | 2015-08-09 | |
dc.date.copyright | 2013-08-09 | |
dc.date.issued | 2013 | |
dc.date.submitted | 2013-08-05 | |
dc.identifier.citation | [1] Holler, H., “Selection of Operating Fluids for Hydrodynamic Power Transmitting Equipment”, Heidenheim: Voith, 2010.
[2] Nicholas, A., “Hydro-Kinetic Drives, Hydraulic Torque Converters and Hydraulic Couplings”, Engineering and Science Monthly, 1945, pp. 10-16. [3] Shinya, K., Yuji, T., and Kouzou, Y., “Prediction of Torque Converter Characteristics by Fluid Flow Simulation”, KOMATSU, Vol.50, No.154, 2004. [4] Chen, P., ” Numerical Simulation of Torque Converter quashing Design”, Master thesis, National Cheng Kung University, 2009 [5] Douglas, J. F., Gasiorek, J. M., and Swaffield, J. A., “Fluid Mechanics”, London: Pitman, 1979 [6] Schweichkert, H., “Voith Power Transmission, 100 Years of the Fottinger Principle”, Berlin: Springer, 2005. [7] Fottinger, H., “Flussigkeitsgetriebe mit einem oder mehreren treibenden und einem oder mehreren getriebenen Turbinenradern zur Arbeitsubertragung zwischen benachbarten Wellen”, Germany Pattern shrift Nr 221422 , June, 1905 [8] Dong,Y., Korivi, Attibele, P. and Yuan, Y. “Torque Converter CFD Engineering-Part 1: Torque Ratio and K Factor Improvement through Stator Modifications”, SAE Technical Paper, No. 2002-01-0883, 2002. [9] Kothandaraman, C.P. and Rudramoorthy, R., “Fluid Mechanics and Machinery”, U.K.: Tunbridge Wells, 2011, pp.760-762. [10] Sida, S., Eugen, V., and Milun, J., “Theoretical and experimental studies on torque converters”, Thermal Science., Vol. 14, 2010, pp. 231-245. [11] Young, M. and Huebsch, O., “Fundamentals of fluid Mechanics”, U.S.A.: Wiley, 2009. [12] Ohman, H., “100 year of energy efficiency-The Hydraulic transmission”, Nacka: SRM, 2008. [13] 江樹基,“液力偶合器製造技術及使用維護指南”,北京:機械工業出版社2011。 [14] 蔡錫錚,“精密機械設計”,北京:機械工業出版社,2008。 [15] 魏衰官,“液體粘性傳動”,北京:國防工業出版社,1996。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/61480 | - |
dc.description.abstract | 液力耦合器為透過一體介質傳遞動能之傳動機構,具有傳動平穩與過負載保護等優點,已被廣泛運用於船舶、鐵路車輛與重工業。若能縮小液力耦合器之尺寸,並應用於小型精密機械中,可使精密機械於高轉速運轉時之動力傳輸穩定、降低衝擊振動之影響、抑制噪音的生成,進而使得機械運轉更為精密。
本論文目標為設計開發微型液力耦合器以及性能量測裝置。依據液力耦合器原理,輸入耦合器之機械動能將透過泵輪轉成液體動能,帶動液體介質後衝擊渦輪,渦輪再將液體動能轉回轉速和扭力矩輸出。為應用於精密小型機械中,微型液力耦合器之外型尺寸與元件之轉動慣量皆必須有所限制。 微型液力耦合器的性能主要受到液體性質,以及泵輪和渦輪的葉輪外型與結構等流體力學特性影響。考慮到低汙染與醫學運用,水因其低黏滯性和中性性質被選用為動力傳輸媒介。透過理論和有限元素分析探討微型液力耦合器的影響因素和性能之關係以及能量轉換效能之關係。在液體性質不受轉速影響的假設下,微型液力耦合器在輸入轉速2000 rpm時開始啟動耦合效應。 本論文進一步製作微型液力耦合器之實體模型並進行實驗,以了解葉扇角度及葉輪間距對耦合性能的影響。根據實驗結果,葉輪間距和葉扇角度直接影響渦輪輸出扭矩,當葉輪間距越小,輸出扭矩越大,而葉扇角度越接近 時可以產生最大輸出扭矩7 。渦輪輸出速度卻不受葉輪間距和葉扇角度的影響。 | zh_TW |
dc.description.abstract | The hydraulic couplings, which transmit energy through fluid working medium, have been broadly used in marine vessels, railway vehicles, and heavy machines. Because of its design concept of non-contact energy transmission and fluidic properties of fluid working medium, the hydraulic couplings have advantages such as better vibration absorption and overload protection. With these advantages, the mini hydraulic coupling can be applied on small machines to stabilize the power transmission, to reduce the influence of impact vibration, and to suppress the noise. This will improve the precision of small machines during high speed operation.
The purpose of this thesis is to design and develop a mini hydraulic coupling along with its performance verification equipment. Based on the hydraulic coupling principle, the mechanical input energy is transformed by the pump impeller into the fluidic kinetic energy of fluid working medium, and then creates the fluid motion. The turbine wheel turns the fluidic kinetic energy into the mechanical energy after being directly lashed by moving fluid. With a view to applying to small precision machines, the dimensions and rotational inertias of mini hydraulic coupling should be limited. The performance of the mini hydraulic coupling is significantly influenced by the fluid properties of fluid working medium and the fluid dynamic properties of the pump and turbine wheels, such as shape and structure. In consideration of kinetic motions, medical application and pollution prevention, water is chosen as the fluid working medium because of its low viscosity and stable properties. Though the theoretical and finite element analyses, the relationship between the design parameters and the performance such as energy transformation efficiency are closely studied. Under the the assumption that fluid properties are unaffected by speed, the designed mini hydraulic coupling can start its coupling operation at the rotational speed of 2000 rpm. The prototype of the mini hydraulic coupling has been developed based on the analytical results. The experimental measurement has also been carried out to verify the relationship between the design parameter, such as vane angle and wheel span, and the performance of the mini hydraulic coupling. The results show that the wheel spans and vane angle both have direct influence on the turbine torque. The output torque will increase while the wheel span decreases, and there is a maximum torque output of 7 for the vane angle near . The output speed has no significant affiliation with these two design parameters. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T13:03:55Z (GMT). No. of bitstreams: 1 ntu-102-R00522621-1.pdf: 2613382 bytes, checksum: f071efab61a8330ea08b99379165a5d3 (MD5) Previous issue date: 2013 | en |
dc.description.tableofcontents | 口試委員會審定書 #
誌謝 i 中文摘要 ii ABSTRACT iii CONTENTS v LIST OF FIGURES vii LIST OF TABLES ix LIST OF SYMBOLES x Chapter 1 Introduction 1 1.1 Research Background and Motivation 1 1.2 General Background Information 2 1.2.1 Hydrodynamic power transmission development 2 1.2.2 Classification of hydraulic transmission 7 1.3 Section Summary and Research Overview 8 Chapter 2 Principles and Analyses 10 2.1 Theoretical Principles 10 2.1.1 Coupling principle 12 2.1.2 Similarity laws for hydrodynamic power transmitters 13 2.2 Performance and Influential Parameters 15 2.3 Fluidic Analysis 21 Chapter 3 Design and Development of Mini Hydraulic Coupling 24 3.1 Configuration of Mini Hydraulic Coupling 24 3.2 Fluid working medium 27 3.3 Pump Impeller and Turbine Wheel 28 3.4 Fluid Sealing 31 3.5 Fluid housing 32 Chapter 4 Experimental Verifications 33 4.1 Experimental Setup 33 4.1.1 Rotational Speed Measurement Unit 34 4.1.2 Torque measurement unit 35 4.2 Dynamic Power Transmission with Different Vane angle 38 4.3 Dynamic Power Transmission with Different Spans 41 4.4 Experimental Repeatability 45 Chapter 5 Conclusions and Future Works 48 5.1 Conclusions 48 5.2 Future Works 49 REFERENCES 50 | |
dc.language.iso | en | |
dc.title | 微型液力耦合器之設計與開發 | zh_TW |
dc.title | Design and Development of Mini Hydraulic Coupling | en |
dc.type | Thesis | |
dc.date.schoolyear | 101-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 陳美勇(Mei-Yung Chan),蔡得民(Der-Min Tsay) | |
dc.subject.keyword | 液力耦合器,動力傳輸,微型化,渦輪葉輪,有限元素分析, | zh_TW |
dc.subject.keyword | Hydraulic coupling,Power transmission,Minimization,Vane wheel,Finite element analysis, | en |
dc.relation.page | 54 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2013-08-05 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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