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Relevant bibliographies by topics / Gear rolling / Dissertations / Theses

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Dissertations / Theses on the topic 'Gear rolling'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

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1

Khodaee, Alireza. "Gear Rolling for Production of High Gears." Licentiate thesis, KTH, Industriell produktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173510.

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Gears are used to transmit mechanical workfrom one point to another. They are widely used in different mechanisms and they are the most important components of a transmission system. Thus, it is important that they are manufactured with high precision to deliver the work with highest possible efficiency. The dominant gear production method is metal cutting, like hobbing. The gear manufacturing industry aims to replace their traditional production lines with greener processes and thereby urge engineers to think about using metal forming methods instead of the traditional metal cutting solutions

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2

Saleem, Adil. "Simulations of Gear Rolling by Flat Tools." Thesis, KTH, Industriell produktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140317.

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Gear rolling is one of the latest techniques being used in gear manufacturing. As compared to traditional gear manufacturing techniques, gear rolling can add benefits like improved surface finish, increased flank strength, increased load capacity and less material usage. After initial research initiatives in USA, Germany and China, efforts are underway to make this technique industrially viable for production of both low and high module gears. There are two methods for gear rolling one uses round tools while other uses flat tools. The current work examines advantages and limitations associated

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3

Alshahrany, Shaya. "Rolling contact fatigue in heavily loaded gear transmission contacts." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/90422/.

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This thesis examines the influence of asperities such as found on the teeth of gears and discs, and failure mechanisms associated with rough surface Elastohydrodynamic Lubrication (EHL). The principal outcomes of the research provide a good insight into fatigue life, residual stress effects, damage prediction and surface contact failures. In particular, the study is intended to provide understanding into the residual stress distribution resulting from plastic deformation of surface asperities in the running in process. The residual stress is then added to the asperity elastic stress distributi

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4

Dharmarajan, Vignesh. "An Investigation on Spur Gear Rolling Contact Fatigue Crack Initiation and Crack Propagation under EHL Condition." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1578319670376195.

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5

Shon, Samuel. "An Experimental Study on the Impact of Various Surface Treatments on Friction, Scuffing, and Wear Characteristics of Lubricated Rolling-Sliding Contacts." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1351629351.

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6

Wilson, Steve Jason. "Traction and Wear Evaluation of a Number of Plastic Materials and Greases under Combined Rolling and Sliding Contact Conditions." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337191253.

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7

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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8

Zhu, Shaocheng. "Contribution to the modeling of rolling element bearing – rotor system for railway application." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI136/document.

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Quelques développements sont démontrés dans cette thèse, du modèle de contact au modèle de roulement et du modèle de roulement-rotor à la technique de reproduction par bancs. Tout d’abord, la méthode de perturbation est étendue afin de prouver que la rigidité et l’amortissement distribués en état stable EHL ne remplissent pas les conditions transitoires et que les coefficients intégrés ne sont pas appropriés pour les analyses dynamiques. La loi de distribution de la rigidité et l’amortissement du film d’huile de l’EHL est proposée. En combinant l’état initial d’une solution stable avec l’amort

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9

Hasan, Mushfiq. "Investigation of micropitting and wear in rolling/sliding contacts operating under boundary lubrication conditions." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87215.

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10

Eigner, Florian. "Untersuchungen am koaxialen Getriebe „HypoGear“." Technische Universität Chemnitz, 2019. https://monarch.qucosa.de/id/qucosa%3A34306.

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Auf der Suche nach immer kompakteren koaxialen Getrieben für kleine Antriebe steht eine neue Bauweise bereit. Der Foliensatz stellt kurz die Baugruppen eines solchen Getriebes vor und klärt über einige der Herausforderungen auf, die die Entwicklung beeinflussen. Weiterhin wird auf die Berechnung der verbauten Hypoidzahnradstufe eingegangen. Die Berechnung der Zahngeometrie ausgehend von den Wälz-Gleit-Körpern wird losgelöst von den Einschränkungen betrachtet, die herkömmliche Serienfertigungsverfahren mit sich bringen. Ausblickend werden die Entwicklungsschritte umrissen, die zunächst zum Prot

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11

Vittal, Srigiripura Sahana. "Development of a method for estimation of contact fatigue life in hypoid gears." Thesis, KTH, Maskinkonstruktion (Inst.), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288898.

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Hypoid gears have been used extensively in automobiles, aerospace, marine and other applications for decades. The special advantages of hypoid gears come with inherent contact complexities of varying curvature and sliding in both profile and lengthwise direction. Spalling failure is catastrophic and needs to be addressed with deeper roots in gear design. Analytical methods present several limitations. Iterative development from experimentation is expensive and time consuming with different nonlinear parameters difficult to interpret. This thesis aims to develop a method to calculate contact fa

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12

Le, Marion. "Influence des liserés de carbures induits par la nitruration gazeuse sur les mécanismes de fissuration de fatigue de contacts roulants." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0102/document.

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La nitruration gazeuse est utilisée par les fabricants d’engrenages pour traiter la surface des dentures. En effet, l’augmentation de la dureté et l’introduction de contraintes résiduelles de compression contribuent à retarder voire inhiber l’initiation et la propagation des fissures superficielles de fatigue de contact. Cependant la majorité des aciers alliés présentent des réseaux de précipités de carbures dans la couche nitrurée. Ceux-ci ont la particularité de se retrouver aux joints de grains relativement parallèles à la surface, ce qui leurs ont attribué les surnoms de «liserés de carbur

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13

Kim, Tae Hyun. "Fatigue of surface engineered steel in rolling-sliding contact." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325019.

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14

Tu, Xinh. "The use of ultrasound measurement system to monitor the mechanical integrity of rolling element bearings and gears." Thesis, Cranfield University, 1992. http://dspace.lib.cranfield.ac.uk/handle/1826/10736.

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A theoretical design and study of production of various types of ultrasound transducers for acoustic emission research into the fatigue failure mechanism and application in machine condition monitoring of rolling element bearings and gears are reported. The transducer transmission modelling was presented and verified, theoretical transducer responses were exercised and their comparisons were made with experimental results. Transducer size, construction and location were considered important in the application of ultrasound. Advanced method of metallurgical attachment improved the bond durabili

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15

Tu, X. "The use of ultrasound measurement system to monitor the mechanical integrity of rolling element bearings and gears." Thesis, Cranfield University, 1992. http://dspace.lib.cranfield.ac.uk/handle/1826/10736.

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A theoretical design and study of production of various types of ultrasound transducers for acoustic emission research into the fatigue failure mechanism and application in machine condition monitoring of rolling element bearings and gears are reported. The transducer transmission modelling was presented and verified, theoretical transducer responses were exercised and their comparisons were made with experimental results. Transducer size, construction and location were considered important in the application of ultrasound. Advanced method of metallurgical attachment improved the bond durabili

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16

Bonetto, Alexis. "Etude de l'indentation et de la fatigue des contacts roulants." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI030.

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La fatigue de surface est aujourd'hui la principale cause de défaillances des roulements. Ce type de fatigue peut se développer du simple fait de la rugosité des surfaces mais est exacerbée par la présence de défauts de surface tels que les indents. La gestion de la pollution des lubrifiants, à l'origine de l'indentation des surfaces, est très coûteuse et ne peut être parfaite puisque la pollution est à la fois présente dans les huiles neuves, générée de manière continue par les systèmes lubrifiés et introduite lors des opérations sur le système. En conséquence, les huiles charrient systématiq

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17

Vouaillat, Guillaume. "Analyse de la fatigue de contact d'engrenages aéronautiques." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI035.

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Le micro-écaillage est une défaillance en fatigue de contact qui intervient sur les composants de transmissions mécaniques tels que les roulements et les engrenages. Le plus souvent, il est le résultat d’un manque de lubrification ou d’un écart avec les spécifications d’état de surfaces. La conséquence est alors l’apparition de sur-contraintes dans le matériau qui évoluent vers des arrachements microscopiques de matière. Ces derniers sont appelés micro-écailles et peuvent éventuellement amener à des dysfonctionnements de la transmission dans laquelle les pièces impactées sont en jeu. La littér

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18

Kosar, Jakub. "Konstrukční řešení reverzní vírové turbiny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416611.

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The thesis deals with the construction design of reversible swirl turbine used in a tidal range power plant for bidirectional operation. The theoretical part provides an overview of state-of-the-art technologies in the usage of tidal energy, mostly by means of tidal range and stream tidal power plants. It also analyses respective designs of tidal turbines and their advantages and disadvantages. The practical part of the thesis demonstrates individual steps applied when examining loading forces and also shows the design method and strength inspection procedure of the turbine and its parts, espe

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19

Fernandes, Carlos Miguel da Costa Gomes. "Power loss in rolling bearings and gears lubricated with wind turbine gear oils." Doctoral thesis, 2015. https://repositorio-aberto.up.pt/handle/10216/78594.

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20

Fernandes, Carlos Miguel da Costa Gomes. "Power loss in rolling bearings and gears lubricated with wind turbine gear oils." Tese, 2015. https://repositorio-aberto.up.pt/handle/10216/78594.

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21

Chen, Chun-Fan, and 陳雋帆. "Simulation and Experiment of Double Flank Gear Rolling Testers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/07138784614330506064.

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碩士<br>清雲科技大學<br>機械工程研究所<br>95<br>Double flank composite testing is a method by which a test gear is rolled together, in tight mesh, with master gear. As the gear roll, slight variations of center distance are measured and recorded as an indicator of gear quality. The double flank testing machine which is investigated in this study is easy and low coasted, and is widely used in gear industry. In this study, the meshing model of double flank composite testing has been set up according to the gear with errors firstly. Then, tooth contact analysis was adopted to simulate the results of double flan

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22

Zeng, Zi-Chen, and 曾子承. "Finite Element Modeling and Analysis on Double Flank Gear Rolling Testing." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06738265546242794498.

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碩士<br>清雲科技大學<br>機械工程所<br>100<br>The double flank testing machine investigated in this study is compect and low coasted, and is widely used in gear industry. Double flank testing is a method by which a test gear is rolled together, in tight mesh, with master gear. As gears roll, slight variations of center distance are measured and recorded as an indicator of gear quality. In this study, the process of double flank testing is simulated by finite element analysis software ABAQUS. The effect of gear errors on the results of double flank testing has been studied was well. The results of this study

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23

Δημήτριος, Ρούλιας. "Methodologies for remaining useful life estimation with multiple sensors in rotating machinery." Thesis, 2014. http://hdl.handle.net/10889/8258.

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The focus of this thesis was the development of failure prognosis methods (prognostics) in rotating machinery with use of multiple sensors digital signal processing and machine learning techniques. The motivation stems from the void in literature concerning prognostics in meshing gearboxes. Moreover, there are several but inconclusive works regarding bearing prognosis. Few research groups have studied multi-hour fatigue gear experiments and this was one of the contributions of this thesis. Moreover, the study expanded beyond the sheer application of vibration monitoring with the addition of

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24

Yang, Pei-Lin, and 楊沛霖. "The Comparison on the Rolling/Sliding Characteristics Between Spur Gears and A Fatigue Test Model." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/32060732472937613095.

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碩士<br>國立成功大學<br>機械工程學系<br>89<br>The study was focused on the rolling/sliding characteristics of surface contact between the components of the test model on a Falex friction and wear tester, which is used to simulate the contact stress between involute gear teeth. Involute gears are the important elements in power transmission systems, but it accompanies rolling/sliding phenomenon. Although the experiments using two rollers press each other to estimate wear or strength is widely adopted, no detail of rolling/sliding characteristics of the simulation tests has been reported. Based

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