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Dissertations / Theses on the topic 'Cycloidal'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

McNabb, Michael Lynn. "Development of a cycloidal propulsion computer model and comparison with experiment." Master's thesis, Mississippi State : Mississippi State University, 2001. http://library.msstate.edu/etd/show.asp?etd=etd-08032001-111940.

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2

Kumar, Naren. "Investigation of drive-train dynamics of mechanical transmissions incorporating cycloidal drives." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/84752/8/Naren%20Kumar%20Thesis.pdf.

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Cycloidal drives are compact, high-ratio gear transmission systems used in a wide range of mechanical applications from conveyor drives to articulated robots. This research hypothesises that these drives can be successfully applied in dynamic loading situations and thereby focuses on the understanding of differences between static and dynamic loading conditions where load varies with time. New methods of studying the behaviour of these drives under static and dynamic loading circumstances were developed, leading to novel understanding and knowledge. A new model was developed to facilitate rese
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3

SPAGNOLO, VALENTINA. "A cycloidal propeller simulation model and its application to low and high speed ship manoeuvres." Doctoral thesis, Università degli studi di Genova, 2019. http://hdl.handle.net/11567/945544.

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The aim of this work is to study the application of a cycloidal propulsion system to a hull whose behaviour, when equipped with a bow thruster and traditional propellers and rudders at the stern, is known. Starting from the kinematical model for each single blade, a simulator of an epicyloidal propeller has been developed on a Matlab/Simulink platform. This kind of simulation involves a reliable representation of the cycloidal propellers, the manufacturers of which unfortunately do not publicly share their performance maps for confidential reasons. The numerical modelling presented is based
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Atkin, Leanne. "Feasibility study to evaluate cycloidal vibration therapy for the symptomatic treatment of intermittent claudication due to peripheral arterial disease." Thesis, University of Huddersfield, 2017. http://eprints.hud.ac.uk/id/eprint/34416/.

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Introduction: Peripheral arterial disease (PAD) is a strong prognostic indicator of poor long-term survival (Norgren et al., 2007). A symptom of PAD is intermittent claudication which affects 5% of the adult population aged over 55 years (Fowkes et al., 2013). Intermittent claudication (IC) occurs during ambulation when the peripheral circulation is inadequate to meet the metabolic requirement of the active leg muscle, resulting in severe pain (Gardner et al., 2008). Consequently, patients suffering from IC find that the ambulatory dysfunction limits daily physical activity and negatively affe
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5

Wittwer, Max. "Modelling and Design of a Test Rig to investigate the dynamic behaviour of a Servo driven Powertrain." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-232565.

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In the present work a simulation model for examining the fundamental dynamic behaviour of a servo driven powertrain is developed. This powertrain consists of a permanent magnet synchronous motor, a cycloidal gearbox and a torque motor to apply a load. On basis of this model the selection of components for the design of a test rig is possible. This leads to the constructive draft of the test rig. In order to model the system, the fundamentals give a brief overview of the components incorporated in the test rig system. With ais of the specified task the simulation purpose is defined and the mod
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6

RUZIMOV, SANJARBEK. "Modeling and Validation of Rolling Rotor Switched Reluctance Motors for Automotive Applications." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2511691.

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Electric machines are widely used in modern automotive technologies. Generally, automotive applications require robust and low cost electric motors for the reason of their mass production and operation in different environments. Permanent magnet motors have been used in automotive applications for their high power density when compared to other existing types of motors. Recent years, the price of permanent magnets is sharply increasing and this trend is expected to continue in future. Moreover, brittle nature of permanent magnets make this type of motor less reliable in high vibration applicat
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Citerne, Helene Lucie. "Examination of CYCLOIDEA-like genes in the Leguminosae." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/13400.

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The genetic control of floral symmetry in the Leguminosae and the genetic basis for the apparent reversal to radial symmetry in <i>Cadia </i>were investigated using a candidate gene approach. In the model organism <i>Antirrhinum majus </i>(snapdragon, Lamiales), two paralogous genes <i>CYCLOIDEA (CYC)</i> and <i>DICHOTOMA (DICH)</i> determine dorsal (adaxial) floral identity and play a crucial role in the establishment of zygomorphy. The orthologue of <i>CYCIDICH </i>in <i>Arabidopsis thaliana TCP1 </i>also has adaxial expression in the early stages of floral development. <i>CYC</i>-like genes
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8

Soltwisch, Victor [Verfasser]. "Stripes and cycloids : komplexe Ordnungsphänomene in Übergangsmetalloxiden / Victor Soltwisch." Berlin : Freie Universität Berlin, 2012. http://d-nb.info/1026884179/34.

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9

Clark, Jennifer I. "Regulation of cycloidea : a gene controlling floral asymmetry in Antirrhinum majus." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368176.

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10

Toomey, Nicola. "Investigation of the phylogenetic utility of Cycloidea-like genes in various angiosperm lineages." Thesis, University of Reading, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414722.

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11

Coenen, Karine. "Are CYCLOIDEA-like genes involved in the control of floral zygomorphy in Schizanthus wisetonensis?" Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/13439.

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In <i>Antirrhinum majus </i>(Scrophulariaceae), floral dorso-ventral asymmetry (monosymmetry) is controlled by two genes belonging to the TCP gene family, <i>CYCLOIDEA </i>and <i>DICHOTOMA. </i>My<i> </i>project was to investigate if putative orthologs of <i>CYC </i>and <i>DICH </i>have a conserved role in <i>Schizanthus wisotonensis </i>(Solanaceae), a species also bearing monosymmetrical flowers. To do so, TCP genes from <i>S. wisotonensis </i>were isolated and their expression pattern was characterised in both a wild type and a mutant plant with decreased dorso-ventral asymmetry. In the fir
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12

Borislavov, Biser, Ivaylo Borisov, and Vilislav Panchev. "Design of a Planetary-Cyclo-Drive Speed Reducer : Cycloid Stage, Geometry, Element Analyses." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19635.

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This project has been assigned by SwePart Transmissions AB. It is about calculation and dimensioning, of the elements in a cycloid stage of a speed reducer. Their idea is to use the results from this project and go into production of such reducer to cover another segment of the market. The company is interested in supplying transmissions for robust systems and for various industrial purposes, where large ratios of speed reduction are needed. The company has given the necessary input data for the model. They have also provided a real cyclo-drive reducer for further analyses. To obtain the dimen
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13

Rugh, Jonathan Joseph. "Demonstrations." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/42864.

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A two-part project was used to study the idea of demonstration in architecture. The first was the design and fabrication of cycloidal drawing tools. The second was the design of another studio building for the College of Architecture and Urban Studies at Virginia Tech. First, the study of cycloidal lines became the catalyst for designing and fabricating cycloidal drawing tools. Drawing a cylcoid is a demonstration of its construction. There are no specialized tools available for drawing these types of lines, so several iterative generations of design were needed to refine the form of t
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Kim, Joonseog. "EFFECTS OF SILENCING CYC2-LIKE GENES ON FLORAL DEVELOPMENT IN SOLANUM LYCOPERSICUM L. AND NICOTIANA OBTUSIFOLIA M. MARTENS & GALEOTTI (SOLANACEAE)." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/5014.

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CYCLOIDEA (CYC) and DICHOTOMA (DICH) of the CYC2 clade of the TCP gene family have been shown to play a significant role in regulating the identity of the dorsal petals and abortion of the single dorsal stamen in Antirrhinum majus. It is believed that CYC2-like genes are responsible for the convergent evolution of floral zygomorphy, but their role in the development of actinomorphic flowers is still unknown. In Solanaceae, previous analysis has identified two paralogs of CYC2-like genes, CYC2A and CYC2B, resulting from a gene duplication that predates the origin the family. Virus-induced gene
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15

Vu, Ben H. "Investigating the Effectiveness of Cycloid Vibration Therapy on the Quality of Life, Mobility and Nutrition of Aged Care Residents." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/407568.

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In Australia, 3.8 million people are aged 65 or over; this age group is projected to grow to 8.7 million by 2056, making up 22 per cent of Australians (1). This rapid ‘ageing’ of the population is thanks to current advancements in medical technology and public health schemes (2). Although individuals can now expect to live into their sixties and beyond, ageing is associated with an accumulation of generalised impairments to health (3-5). Therefore, managing healthy ageing in older adults to improve their quality of life, mobility and nutrition is an important social and economic challenge in A
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16

Ferraro, Benjamin James. "Examining the roles of CYCLOIDEA, RADIALIS and DIVARICATA in driving the evolution of flower shape Californian Diplacus pictus (Curran ex Greene) Nesom (Phrymaceae)." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1526903.

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<p> Flower shape, color and size are extensively studied to both identify and classify different angiosperm taxa. The availability of well-supported molecular phylogenies produced using complex models of sequence evolution, coupled with an understanding of the genes that regulate morphological form in model organisms, and new methods to infer gene expression patterns in diverse species now allow us to understand the genetic basis of morphological differences among closely related species. Studies in Plantaginaceae, Gesneriaceae, Fabaceae and Brassicaceae show the importance of <i>CYCLOIDEA (CY
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17

Li, Yawei, and Yuanzhe Wu. "Design of a cycloid reducer : Planetary stage design, shaft design, bearing design, bearing selection, and design of shaft related parts." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19758.

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The RV reducer (one tpye of cycloid reducer) which has two stage transmissions is widely used in manyfields of engineering. This project is going to design the first stage of the RV reducer, as well as therelated components. The details contain design of input shaft, planetary gears, output shaft, generalbearings and eccentric bearings. The fatigue analysis is mostly used in the calculation process becausethe fatigue failure happens frequently in such rotation machine. In the same time, the general bearingsdesign is based on SKF General Catalogue and the eccentric bearings design is supported
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18

Coelho, Rejeane Alexandre [UNESP]. "A história dos problemas da tautócrona e da braquistócrona." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/91134.

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Made available in DSpace on 2014-06-11T19:24:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-04-25Bitstream added on 2014-06-13T18:52:57Z : No. of bitstreams: 1 coelho_ra_me_rcla.pdf: 5401836 bytes, checksum: 80bd8b943cf34df4138fa4c1dcc3291e (MD5)<br>O objetivo deste trabalho é analisar a forma como Huygens e os irmãos Bernoulli, propuseram e resolveram, respectivamente, os problemas do Isocronismo do Pêndulo (Tautócrona) e da Braquistócrona, Buscando, assim, contribuir para o entendimento dos métodos utilizados pelos eruditos para essas demonstrações. Trata-se de uma pesquisa de c
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19

Haykal, Angela. "Exploring the antiferromagnetic order with a single-spin magnetometer." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS057.

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Les matériaux antiferromagnétiques (AF) suscitent actuellement un intérêt considérable pour la conception de futurs dispositifs spintroniques à faible coût énergétique et ultra-rapides. Cependant, l’exploration de ces matériaux novateurs se heurte à des défis d’imagerie magnétique : la plupart des techniques conventionnelles de microscopie magnétique en espace réel ne peuvent pas sonder l'ordre AF aux échelles nanométriques, en raison de la compensation des moments magnétiques donnant lieu à des signaux magnétiques extrêmement faibles. Il s'agit d'un obstacle majeur à la compréhension fondamen
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Coelho, Rejeane Alexandre. "A história dos problemas da tautócrona e da braquistócrona /." Rio Claro : [s.n.], 2008. http://hdl.handle.net/11449/91134.

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Orientador: Marcos Vieira Teixeira<br>Banca: Sérgio Nobre<br>Banca: Iran Abreu Mendes<br>Resumo: O objetivo deste trabalho é analisar a forma como Huygens e os irmãos Bernoulli, propuseram e resolveram, respectivamente, os problemas do Isocronismo do Pêndulo (Tautócrona) e da Braquistócrona, Buscando, assim, contribuir para o entendimento dos métodos utilizados pelos eruditos para essas demonstrações. Trata-se de uma pesquisa de cunho histórico-analítico, centrada no século XVII, que fez-se uso de bibliografias que transcreviam os originais dos dois cientistas. Observou-se que para o sucesso d
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21

Venceslau, Allisson Wesley do Nascimento. "Curvas parametrizadas, ciclóides, experimentos e aplicações." Universidade Federal de Sergipe, 2015. https://ri.ufs.br/handle/riufs/6479.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This work aims at presenting methodological referrals able to make mathematics teaching more enjoyable and interactive. In this sense, the work that will be developed here will address the study of some special curves like the Agnesi Curve, the Epicycloid, the Hypocycloid and will focus in greater depth the study of Cycloid addressing its main properties with an emphasis on Tautochrone and Brachistochrone. All work performed in this study shows that mathematics can play an important role in the classroom, helping to develop th
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22

Khojayori, Farahnoz N. "Floral symmetry genes elucidate the development and evolution of oil-bee pollinated flowers of Malpighiaceae and Krameriaceae." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5585.

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Specialization on insect and animal pollinators is thought to be the driving force for the evolution of floral traits. Specifically in the New World (NW), the oil-bee pollination syndrome has led to the convergence of floral characters in two distantly related families of core eudicots, Malpighiaceae and Krameriaceae. Both families display a flag-like structure that establishes a zygomorphic flower and floral oil rewards in epithelial elaiophores. These traits work concomitantly to attract and reward female oil-bees that help fertilize these flowers and in return receive oils. The underlying g
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23

LIN, YOU-YONG, and 林祐永. "Research on Cycloidal Reduction Gear System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/q64m2a.

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碩士<br>吳鳳科技大學<br>光機電暨材料研究所<br>105<br>The purpose of this thesis is about the calculation and size of the components of the cycloid in the reducer and to employ the resultant reducer into the production with the hope that it would fill another part of the market. The authors are interested in providing transmission for robust systems and various industrial purposes which requires a large proportion of reducer. Provided with the necessary input data, the model also runs a further analysis of the true recirculation reducer. In order to obtain the size and shape of the gears, some of the work of Pr
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Wu, Yi-Chen, and 吳懿真. "Tooth Contact Analysis of Cycloidal Gears." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/84430108340102189158.

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碩士<br>清雲科技大學<br>機械工程研究所<br>95<br>In this study, the mathematical models cycloidal gears are derived based on the theorem of gearing firstly. Then, the meshing model of cycloidal gear pair is set up and tooth contact analysis (TCA) is adopted to investigate the transmission errors with different design parameters and assembly conditions. Furthermore, the general-purpose FEA software, ABAQUS, was applied to evaluate the formation of bearing contacts and stress distribution on the tooth surfaces according to different design parameters. Results in this study not only verify the contact nature of
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Rami, Mehdi Habibnia. "CFD Modelling of 3D Effects in Cycloidal Rotors." Doctoral thesis, 2021. http://hdl.handle.net/10400.6/12084.

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The cycloidalrotor (cyclorotor) is a revolutionary propulsion system that has not been systematically studied in the past in terms of its different aspects and applications. Therefore, the current research presents the viability of the cyclorotor concept for powering a hoveringcapable unmanned scale aerial vehicle (UAV) through both computational fluid dynamics (CFD) and also artificial neural network (ANN) analysis. Numerical or CFD simulations included both performance and flow field measurements on a cyclorotor of span and diameter equal to 0.8 meter. The simulations consist of dive
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Chiu, Cho-Chun, and 邱卓群. "Innovative Design and Analysis of Cycloidal Gear Reducers." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/54710155342605336648.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>100<br>Cycloidal gear reducers are commonly used for speed reduction where machine needs high reducing ratio and/or high torque drive. In the past decades, a great amount of research has been focused on the design of cycloidal gear reducers and many patents were also invented. Nonetheless, not much research has addressed the topological structure of the cycloidal gear reducers. In the first part of this thesis, the topology of the cycloidal gear reducer is analyzed first. Then structural characteristics of such mechanisms are investigated and summarized. Subsequentl
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Sung, Ming-Jui, and 宋明芮. "THE CYCLOIDAL GEAR PROFILE COMPENSATION OF EXTRUSION MODEL." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/99r9r6.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>107<br>At present, the common manufacturing method of cycloidal gears seen on the market is grinding after hobbing. The extrusion processing of cycloidal gears is a new research field. Although the manufacturing time is relatively short, it also has the disadvantage of difficult to control the size and accuracy, which has caused many troubles to the actual production. To solve the problem of the precision of extruded products, many people will use analysis software to simulate and analyze the situation of products after processing, and then amend it to reduce waste g
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LUO, SHI-HONG, and 羅仕宏. "PRECISION EVALUATION OF TOOTH PROFILE FOR CYCLOIDAL GEARS." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/qw7652.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>107<br>As factory production gradually evolves toward automation, robotic arm replacement is the current trend. Because the mechanical arm joint output is large, it is necessary to use a small volume and high-speed ratio precision reducer to increase the torque. Therefore, cycloidal gears with high gear ratio, small size, lightweight and low noise are often used in robot arms. The purpose of this paper is to develop the accuracy evaluation method of cycloidal gear and propose a mathematical model for accuracy evaluation. Firstly, the 2D point data of the tooth profil
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Ding, Nan-Yao, and 丁南堯. "A Cycloidal Speed-Reduction Drive with Eccentric Ring Magnets." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/u3u799.

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碩士<br>國立雲林科技大學<br>機械工程系<br>103<br>The thesis explores the design of a cycloid motor which integrates a cycloid reducer with a rotor of eccentric ring magnets. The magnetic flux distribution of the ring magnets is computed using a 2D magneto-static analysis software. The data are then post-processed using Scilab to calculate the magnetic flux through the stator windings and the torque generated per unit of applied current. It is intended to maximize torque under certain weight constraint on the ring magnets. To improve the performance of the motor, a double-plate rotor is devised. Experimen
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Dung, Pham Quang, and 范光勇. "The Study of the Structural Design of Cycloidal Gear." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/qmvpce.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>102<br>The cycloidal gear is widely used in many industrial application for speed and torque transmission purposes because the advantages of high efficiency, large ratios, compact design, long and reliable working life. A fine design about the geometry of the output shaft will decrease the stress concentration on the gear disc when transferring power. In this study, a computer program is developed for calculating the profile data of the cycloidal gear and export to Pro/E software to create a 3D cycloid mechanism module for dynamic analysis. The dynamic models co
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Peng, Long-Hui, and 彭龍輝. "The Study on Cycloidal Reducer made by 3D Printing." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/a3a8db.

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碩士<br>健行科技大學<br>機械工程系碩士班<br>106<br>Cycloidal reducers have been applied in modern engineering universally. Compared with the traditional gear reducers, cycloidal reducers have the characteristics of high load ability, low-backlash, high-ratio, reliable functioning in dynamical load conditions, compact, and high efficiency. The main purpose of this study is to develop a cycloidal reducer with less weight by 3D printing. The CAD model is constructed by SolidWorks. After the parts have been printed, the reducer are assembled and the driving tests are performed. The results of this study shows the
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Cheng, Yu-Hsuan, and 鄭宇軒. "Force Analysis of a Cycloidal Speed Reducer with Tooth Modifications." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/75797128451767877123.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>102<br>Cycloidal reducer, commonly used in industry for decades, is a speed reduction device with high speed ratio, high efficiency, and high locating precision. This thesis studies the force on a cycloidal speed reducer with midified teeth. Firstly the cycloidal gear profile is generated by using theory of gearing. To satisfy engineering requirements, the cycloidal gear profile is then modified. Second, the force performance and kinematic error are analyzed with the results of tooth contact analysis. Finally, an optimization design is discussed. The optimal results
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HUANG, CHIN-CHEN, and 黃金振. "The Study of Optimum Design on Cycloidal Gear Tooth Profile." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/nba5v2.

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碩士<br>國立虎尾科技大學<br>機械設計工程系碩士班<br>107<br>The process of the cycloidal gear movement is driven by point contact, Therefore, if the tooth shape is poorly designed, the tooth surface of the cycloidal gear will be uneven during operation. The tooth surface wear is different and the transmission accuracy and service life are reduced. In order to make the tooth surface force close to uniform size. In this paper, the tooth surface is evenly stressed, Minimum tooth surface stress and Minimum tooth surface maximum stress wave front difference is the target. Use optimization analysis to achieve the above
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Zeng, Bo-Sang, and 曾柏桑. "Force Analysis of a Cycloidal Speed Reducer Using Finite Element Method." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/41714539707485908954.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>102<br>Cycloidal speed reducers have been applied in modern engineering universally. Compared with the traditional planetary gear reducer, cycloidal speed reducers have the characteristics of high load ability, low-backlash, high-ratio, reliable functioning in dynamical load conditions, compact, and high efficiency. Theoretically, the teeth of cycloid disk are in contact with appropriate rollers on the outer stationary case simultaneously. But in practical application, in order to compensate the manufacturing errors and reserve the space for lubricating, the cycloid
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Chen, Tse-Yu, and 陳冊宇. "Force Analysis and Finite Element Simulation of a Cycloidal Gear Reducer." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/21575906893065121931.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>101<br>Cycloidal reducers have been applied for the transmission mechanism in precision machine for a long time. Recently, the development of cycloid gear reducers has been focused on the high torque density design. In light of this trend, it is necessary to understand and explore the gear reducer in the force/torque aspect. This thesis first reviewed the methods of force analysis for cycloid gear reducers. Then, a method based upon the superposition method is proposed for the analysis of the contact force between cycloid lobe and pin. The results are compared with
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Lin, Wan-Sung, and 林灣松. "Kinematic Error Analysis and Design of a Two-Stage Cycloidal Speed Reducer." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/80669841004561412766.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>101<br>The cycloidal drive is a compact, high-ratio, low-backlash speed reduction device, commonly used in industry for decades. This thesis studies the design of a novel two-stage cycloidal speed reducer. The mechanism and working principle of cycloid drive is explained by topological structure and kinematic diagram. The advantages of two-stage cycloidal drives over one-stage cycloidal drive are discussed. Then, the cycloidal gear profile is generated by using theory of gearing. Due to the manufacturing errors, the cycloidal gear profiles have to be modified. Types
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Lin, Yi-Fong, and 林逸鋒. "Motion and Structure Analysis of Cycloidal Speed Reducer with Skew Angle Design." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/m5yyeu.

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碩士<br>國立虎尾科技大學<br>創意工程與精密科技研究所<br>98<br>This paper presented is design of the cycloid drives gear tooth profile. This goal is in to solve the question of the speed reduce with the vibration and make the work effectively. The discussion about Dynamic simulation analysis and structure analysis using the design of the cycloid drives gear tooth profile. From the analysis compare their differences: new gear tooth profile and skew angle design of the traditional cycloid gear. Using the Solid Works to build a new project of gear tooth profile and prove the curve of mathematic model is correct. At fir
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Wang, Wei-hsiang, and 王韋翔. "STUDY ON THE DUAL FACE-HOBBING METHOD FOR CYCLOIDAL CROWNING OF HELICAL GEARS." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/20131773764587208695.

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博士<br>國立中正大學<br>機械工程所<br>98<br>Of the gear pairs and transmissions that play an important role in many industrial applications—including vehicles and machine and power tools—involute helical gears are among the most common because of their simple geometry, easy manufacturing, and low sensitivity to center distance. However, the conventional helical gear pair meshes in line contact, is very sensitive to assembly errors, and is prone to edge contact problems. Therefore, based on the theory of gearing and differential geometry, this investigation proposes a novel face-hobbing method to generate a
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CHANG, YU-CHENG, and 張育宸. "The manipulator design and control based on a novel two-stage cycloidal speed reducer." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/n387rw.

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碩士<br>國立臺北科技大學<br>機械工程系機電整合碩士班<br>107<br>In recent years, the continuous development and promotion of Industry 4.0 has made the industrial model gradually replace labor with automation, and installed various types of sensors to evaluate the current and estimated state of the future machine. Nowadays, the development of robotic arms is becoming more and more mature, and the repeatability is less than 0.01 that used in various precision assembly, welding, simple pick and place task, etc. These industrial robots usually achieve high precision with strong structure and materials, but their weight
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Hsu, Ting-Hsiang, and 徐鼎翔. "Contact Force Analysis and Finite Element Simulation of the Cycloidal Speed Reducer with Modified Tooth Profile." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/42zv3e.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>104<br>The cycloidal speed reducer has been widely used in precision machinery. Compared with the traditional planetary gear speed reducer, the cycloidal speed reducer has larger torque density, less backlash, smaller noise, higher efficiency and stable dynamic contact force. This paper presents the force analysis of the cycloidal speed reducer. First, the model of the force analysis for the reducer in three different types were established and the calculation of force reaction between the cycloidal disc and the contact pins was introduced. Then, a procedure of the
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Huang, Chorng-Shiann, and 黃重憲. "On the Surface Design, Tooth Contact Analysis, and Optimum Design of Cycloidal Drives with Modified Tooth Profiles." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/03317185194236448182.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>94<br>Cycloidal drives are used in many machinery. They have some advantages, such as larger range of speed ratio, more compact, lighter weight, higher capacity, and higher efficiency, etc. The main purpose of this study is to investigate the characteristics of the drives with modified tooth profiles and to determine the optimum amounts of tooth modifications such that they have better characteristics. 　　Based on the theory of conjugate surfaces, a general model for the profile design of the cycloidal wheel without or with various tooth modifications is develop
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Lai, Chien-Chih, and 賴健智. "Two-stage Differential Cycloidal Speed Reducer with a High Reduction Ratio of the Dynamic Simulation Technology Research." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/01867304416380839264.

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碩士<br>國防大學理工學院<br>兵器系統工程碩士班<br>103<br>This research used Two-stage differential cycloidal speed reducer (CPD-105-v2) provided by ITRI as an example, proceed kinematics analysis (by ADAMS Mutibody Dynamics) first, also to simulate the results. Then this research used Nonlinear Transient Finite Element Method adopted by AGOR, proceeding transient stresses and strains analysis under structure and mechanism coupling effects. Finally, this research used Fatigue theorem to analyze the life-cycle of the critical components of cycloidal speed reducer. The transmission shaft of cycloidal speed reducer
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Wittwer, Max. "Modelling and Design of a Test Rig to investigate the dynamic behaviour of a Servo driven Powertrain." Master's thesis, 2017. https://tud.qucosa.de/id/qucosa%3A30754.

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In the present work a simulation model for examining the fundamental dynamic behaviour of a servo driven powertrain is developed. This powertrain consists of a permanent magnet synchronous motor, a cycloidal gearbox and a torque motor to apply a load. On basis of this model the selection of components for the design of a test rig is possible. This leads to the constructive draft of the test rig. In order to model the system, the fundamentals give a brief overview of the components incorporated in the test rig system. With ais of the specified task the simulation purpose is defined and the mod
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Javorská, Zdeňka. "Kinematická geometrie v rovině." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-352607.

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Diploma thesis is divided into three chapters. In first chapter are explained elementary ideas of kinematic geometry in the plane included not just images but also dynamic files made in software GeoGebra. Second chapter is about specific motions in the plane. It describes construstion of the curves in synthetic and analytic way. Every motion has its own file with animation of that motion. Last chapter devoted to history of some curves and also to aplication of kinematic geometry in real life. This thesis is useful for university students of descriptive geometry, but it also may help as motivat
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Ying-GueiLiao and 廖盈貴. "Characterization of CYCLOIDEA-like genes inPhalaenopsis equestris." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/64009702259731151050.

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碩士<br>國立成功大學<br>熱帶植物科學研究所<br>102<br>The Orchidaceae is one of the most species-rich plant families, which are renowned for their spectacular floral diversity. To maintain bilateral symmetry of flower is important for orchid flower to attract pollinator. Previous studies showed that CYCLOIDEA genes can regulate bilateral symmetry by inhibit cell proliferation. CYC genes belong to TCP family, which involved in the development of cell. In Antirrhium majus, CYC gene plays an role on inhibition of the cell proliferation of dorsal petals and stamens. In Asteraceae and Gesneriaceae, previous study sh
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HUANG, SHI-WEN, and 黃詩雯. "Simulation and performance analysis of cycloid reducers." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/36707649217069328183.

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碩士<br>國立雲林科技大學<br>機械工程系<br>105<br>The thesis investigates the performance of a cycloidal reducer designed by our lab-developed software tool. The tool is capable of simulating the meshing between the ring gear and the eccentric gear, facilitating the analysis of backlash and stepping errors. A 10-tooth reducer is first designed to explore how backlash and stepping errors occur. Then 40-tooth reducers are investigated. Three different simulations are conducted to observe the effect on backlash and stepping errors. The first is to reduce the eccentricity by 0.01 mm, in order to allow for machin
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Wang, Bo-Han, and 王柏翰. "Design and Analysis on Cycloid Reducer Gear." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26122952031548179031.

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碩士<br>國立雲林科技大學<br>機械工程系<br>102<br>Cycloid reducer have many uses in industry, and is compact structure and with high efficiency speed reducer. Until now, for the study of cycloid reducer is to research its unique tooth profile. The formation of tooth profile have several ways, but for how to design a different gear ratio is not systematic design approach on cycloid reducer. This paper is proposed design method for different gear ratio of speed reducer and hope the backlash well minimum when speed reducer is rotation without interfering. For how to make the backlash to reduce method is adjusti
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Yeh, Chian-Yea, and 葉千雅. "The Properties and Applications of Epi- and Hypo- cycloids." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/51201854340971416903.

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碩士<br>國立清華大學<br>數學系<br>87<br>The epi- and hypo- cycloids are the track described by a point of a circle rolling on a stationary circle (base-circle). There are two parts in this thesis. The first part, we discuss the properties and applications of epi- and hopi- cycloids. The next part deals with the problems about the epicycloid-cardioid. We prove that a cardioid is the inverse of a parabola and show how a cardioid may be determined by ruler and compass without the knowledge of the base-circle.
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Wang, Chih-Chung, and 王志忠. "Researches Of Cycloid Reducer With One Tooth Difference." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/89008870896318216830.

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碩士<br>遠東科技大學<br>機械工程研究所在職專班<br>100<br>The study is focused on the introduction of cycloid、and the actual deduction of basic vector operations、such as linear and circular, Displacement and rotation vector,And use of epitrochoidl lines with normal mathematical theory,Theory to do with the envelope as a planetary gear teeth difference cycloid tooth profile design、And use of basic vector operations to draw the pin gear、Center circle、Base circle and the two cycloidal planetary gear arrangement of the eccentric position to draw a mathematical combination chart、And the use of mathematical equations r
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Muliawan, Jocelin, and 王佩琦. "Transcriptional Factors Responsive to CYCLOIDEA in zygomorphic flower of Sinningia speciosa." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/79fksw.

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碩士<br>國立臺灣大學<br>生命科學系<br>107<br>Floral zygomorphy (bilateral symmetry), in which the dorsal, lateral and ventral petals are arranged along a single plane, dividing flower into two mirror-image halves, has been selected as the major trend in angiosperm evolution. Zygomorphic flowers allow the pollinators to enter the flower in fixed angle to facilitate exact pollen deposition and stigma reception, thus greatly enhance reproductive success. In Antirrhinum, TCP transcription factor, CYCLOIDEA (CYC) is strictly expressed at the dorsal petals and it can function to regulate cell proliferation and e
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