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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72129完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 鍾添東(Tien-Tung Chung) | |
| dc.contributor.author | Tzu-Hao Lin | en |
| dc.contributor.author | 林子皓 | zh_TW |
| dc.date.accessioned | 2021-06-17T06:24:49Z | - |
| dc.date.available | 2023-08-21 | |
| dc.date.copyright | 2018-08-21 | |
| dc.date.issued | 2018 | |
| dc.date.submitted | 2018-08-17 | |
| dc.identifier.citation | [1] R. Dearn, “The fine art of gear pump selection and operation,” World Pumps, pp.38-740,2001.
[2] Hydraulic & Pneumatics, “Hydraulic Pumps,” Fluid Power Handbook & Directory, pp. 119-127, 1998-1999. [3] U.S. patent 3,472,445, “Rotary positive displacement machines,” 1969. [4] U.S. patent 4,224,016, “Rotary positive displacement machines,” 1980. [5] U.S. patent 4,504,201, “Mechanical pumps,” 1985. [6] U.S. patent 4,934,908, “Vacuum pump systems,” 1990. [7] U.S. patent 6,364,642, “Rotary piston machine with three blade rotors,” 2002. [8] C. F. Hsieh, Y.W. Hwang, and Z.H. Fong, “Study on the tooth profile for the screw claw-type pump,” Mechanism and Machine Theory, 2008. 43(7): p. 812-828. [9] C. F. Hsieh, “A study of the geometric design and gas port of the claw-type rotor,” J. Mechanical Engineering Science. Vol. 223, part C, 2009. [10] U.S. patent 7,565,741, “Methods for designing lobe-type rotors,” 2009. [11] W. K. Fan, “Design and analysis of a new claw vacuum pump,” National Taiwan University Master Thesis, July, 2008. [12] C. G. Fu, “Design of a liquid pump with new claw rotors,” National Taiwan University Master Thesis, July, 2009 (Traditional Chinese) [13] U.S. patent 2014/0102233, “Device of a pair of claw-type rotors having same profiles,” 2014. [14] L. Y. Kung, “Clearance and leakage analysis of a liquid pump with claw rotors,” National Taiwan University Master Thesis, July, 2011. [15] P. K. Chao, “Development of new claw rotor profiles with variable trochoid ratio epicycloid curves,” National Taiwan University Master Thesis, July, 2012. [16] H. H. Wu, “Development of new claw rotor profiles with deviation function curves,” National Taiwan University Master Thesis, July, 2012. [17] C. F. Hsieh, Y. W. Hwang, “Study on the high-sealing of Roots rotor with variable trochoid ratio,” Journal of Mechanical Design, 2007. 129(12): p. 1278-1284. [18] H. C. Liu, S. H. Tong, and D. C. Yang, “Trapping-free rotors for high-sealing lobe pumps,” Journal of Mechanical Design, 2000. 122(4): p. 536-542. [19] S. C. Tsai, “Development of new claw rotor profiles with involute curves,” National Taiwan University Master Thesis, July, 2016. [20] C. F. Hsieh, Y.W. Hwang, “Study on the high-sealing of roots rotor with variable trochoid ratio,” ASME Transaction, Journal of Mechanical Design, vol. 129, pp.1278-1284, 2007. [21] C. F. Hsieh, “A new curve for application to the rotor profile of rotary lobe pumps,” Mechanism and Machine Theory 87 (2015), pp. 70-81. [22] N. D. Manring, “Measuring pump efficiency: uncertainty considerations,” Journal of energy resources technology, 2005. 127(4): pp. 280-284. [23] Litvin F. L., “Gear geometry and applied theory,” Prentice-Hall, New York, pp. 114-116, pp. 152, 1994. [24] Y. B. Li, K. Jia, Q. W. Meng, H. Shen, and X. H. Sang, “Flow simulation of the effects of pressure angle to lobe pump rotor meshing characteristics,” IOP Conf. Series: Materials Science and Engineering, 52(2013). | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72129 | - |
| dc.description.abstract | 此篇論文發展了一個具有橢圓擺線之新型爪式轉子外形設計。此種爪式轉子之單一爪部外形由一段外擺線、兩段圓弧、一段橢圓擺線及一段與橢圓擺線相對應之曲線所組成。其外形輪廓由三個不同的獨立參數所定義，分別為：節圓半徑、爪數、橢圓長軸。為了減少帶回量，此篇論文亦提出修正型爪尖輪廓使運轉更平順。此外，本篇論文推導新型爪式轉子幾何模型之幾何限制條件以避免不適當之轉子輪廓。並且建立一AUTOLISP輸入對話框讓設計者能夠輸入想要繪製的爪式轉子參數來產生爪式轉子外型。在影響爪式轉子泵浦中，爪式轉子的面積效率扮演很重要的角色。再來，本篇論文將新型爪式轉子之效率與現有之類似爪式轉子比較。此外，此對新型爪式轉子外型具有兩相同外型之爪式轉子，並且每一爪部輪廓皆相同，如此可以降低組裝以及製造的成本。 | zh_TW |
| dc.description.abstract | This thesis develops a novel design for claw rotor profiles with elliptical roulette. The profile of a new claw rotor profile consists of an epitrochoid curve, two arcs, an elliptical roulette, and a conjugate curve corresponding to the elliptical roulette. The rotor profile is defined by three parameters: pitch radius, claw number, major axis of ellipse. The modified claw-shaped is also proposed for reducing the carryover volume in this thesis. In addition, the design constraint is presented for avoiding to generate discontinuous curves. An AUTOLISP interface program is built for designers to provide design parameters and generate claw rotor profiles. The area efficiency of claw rotor profiles play an integral role in pump performance and its performance of claw rotor pumps can be in contrast to previous types of claw rotor pumps. Furthermore, a pair of new type of claw rotor has two identical claw rotor profiles and each claw also has the same profile, which can decrease the cost of assembly. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T06:24:49Z (GMT). No. of bitstreams: 1 ntu-107-R05522636-1.pdf: 3619093 bytes, checksum: 200de95b861d91e087db936118bb1016 (MD5) Previous issue date: 2018 | en |
| dc.description.tableofcontents | 誌謝 i
摘要 ii ABSTRACT iii CONTENTS iv LIST OF SYMBOLS vii LIST OF FIGURES x Chapter 1 Introduction 1 1.1 Introduction 1 1.2 Classification of rotary pumps 2 1.2.1 Gear pumps 2 1.2.2 Lobe pumps 4 1.2.3 Screw pumps 4 1.3 Literature and patent review 5 1.4 Motivation 14 1.5 Outline 15 Chapter 2 Background knowledge for claw rotor pumps 16 2.1 Conjugate theory 16 2.2 Elliptical roulette applied in the rotary lobe pumps 18 2.3 Mathematical model of claw-shaped profile 21 2.3.1 Original claw-shaped profile 21 2.3.2 Modified claw-shaped profile 22 2.4 Specific flow rate and area efficiency 24 2.5 Pump efficiency 26 Chapter 3 Geometric designs of claw rotor profiles 27 3.1 Geometric design of new type claw rotor profiles 27 3.1.1 Curve A 28 3.1.2 Curve C 30 3.1.3 Curve D 32 3.1.4 Arc B and E 33 3.1.5 Finish claw rotor profile 34 3.2 Design constraints of rotor profile 36 3.3 Computer aided design 39 Chapter 4 Performance analysis of claw rotor profiles 42 4.1 Performance analysis of new type claw rotor 42 4.1.1 Area efficiency with different pitch ratio 42 4.1.2 Minimum pitch ratio with different number of claws 43 4.1.3 Area efficiency with different major axis of ellipse 44 4.2 Performance analysis comparison with similar claw-type rotors 45 4.2.1 Comparison between the new type of claw rotor and type 5 46 4.2.2 Comparison between the new type of claw rotor and type 6 49 4.2.3 Comparison between the new type of claw rotor and type 7 54 Chapter 5 Conclusions and suggestions 58 5.1 Conclusions 58 5.2 Suggestions 59 References 60 Appendix A: The interface of AutoCAD program 62 Appendix B: The program for new type claw rotor 65 Vitae 70 | |
| dc.language.iso | en | |
| dc.subject | 爪式轉子 | zh_TW |
| dc.subject | 橢圓擺線 | zh_TW |
| dc.subject | 外擺線 | zh_TW |
| dc.subject | 面積效率 | zh_TW |
| dc.subject | Claw rotor | en |
| dc.subject | elliptical roulette | en |
| dc.subject | epitrochoid curve | en |
| dc.subject | area efficiency | en |
| dc.title | 具有橢圓擺線之新型爪式轉子外形發展 | zh_TW |
| dc.title | Development of New Claw Rotor Profiles with Elliptical
Roulette | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 106-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 劉霆(Tyng Liu),劉正良(Cheng-Liang Liu) | |
| dc.subject.keyword | 爪式轉子,橢圓擺線,外擺線,面積效率, | zh_TW |
| dc.subject.keyword | Claw rotor,elliptical roulette,epitrochoid curve,area efficiency, | en |
| dc.relation.page | 70 | |
| dc.identifier.doi | 10.6342/NTU201803849 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2018-08-17 | |
| 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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