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Dissertations / Theses on the topic 'Gearbox'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Bengtsson, Jonas. "Gearbox Diagnosis." Thesis, Linköpings universitet, Fordonssystem, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-75565.

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Diagnosis based on vibration analysis is a method that has many benefits to offer. It is easy to implement the method on existing transmissions by attaching accelerometers outside the gearbox housing. If you have knowledge of the gearbox geometry, such as number of tooth on the gears and types of bearings, and any unwanted frequencies can be filtered out a good estimation of the gearbox condition can be achieved. In this thesis a number of condition indicators have been tested to identify and isolate different faults that may appear. All analysing have been done in the time domain on different

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2

Meisingseth, Andreas. "Demodulation Techniques in Gearbox Diagnostics." Thesis, Uppsala universitet, Signaler och System, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-177275.

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This thesis covers the scope of one out of many ways to diagnose gearboxes, demodulating the excited vibrational signals to enhance fault detection and identification. The topic is not only of academic interest since the achievements that can be made by successful machine condition monitoring in the industry. It has a potential value that is close to be absurd, for example unplanned production stops is commonly known to be one of the worst nightmares for manufacturing companies and if one can detect faults in early stages one can improve the possibilityto plan a production stop and therefore i

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3

Zaremba, Slawomir M. Caughey Thomas Kirk Beck J. L. "Dynamical signatures of gearbox vibrations /." Diss., Pasadena, Calif. : California Institute of Technology, 1998. http://resolver.caltech.edu/CaltechETD:etd-02082008-160817.

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4

Hamilton, Andrew. "Development of novel gearbox lubrication condition monitoring sensors in the context of wind turbine gearboxes." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25910.

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Wind power has become established as an alternative power source that forms a significant proportion of national energy generation. An increasing proportion of turbines is being constructed offshore to exploit higher average wind speeds and to avoid development issues associated with onshore wind farms. Isolated locations and unpredictable weather conditions lead to increased access costs for operators when conducting scheduled and unscheduled maintenance and repairs. This has increased interest in condition monitoring systems which can track the current state of components within a wind turbi

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5

Ozturk, Fatih Mehmet. "Optimum Design Of Multistep Spur Gearbox." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606749/index.pdf.

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Optimum design of multistep gearbox, since many high-performance power transmission applications (e.g., automotive, space industry) require compact volume, has become an important interest area. This design application includes more complicated problems that are not taken into account while designing single stage gear drives. Design applications are generally made by trial and error methods depending on the experience and the intuition of the designer. In this study, using Visual Basic 6.0, an interactive program is developed for designing multistep involute standard and nonstandard spur gearb

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6

Gustavsson, Mårdestam Peter, and Adam Lundin. "Efficiency Analysis of a Planetary Gearbox." Thesis, Linköpings universitet, Maskinkonstruktion, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-65578.

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This Bachelor of Science thesis consists of an efficiency evaluation and creation of atheoretical model for an Atlas Copcos epicyclic gearbox. The thesis starts with atheoretical chapter containing the fundamentals of epicyclic gearing and the build of thespecific gearbox investigated. The following chapter contains former testing and theoryof power losses in a gearbox. After the theory is explained the next chapter containstesting, compromises and assumptions during testing and also results from the testing.The next chapter explains the Matlab calculation program based on the theory andmeasur

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7

Arlotto, Amaury. "Engine and Gearbox Thermal Management Modeling." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235508.

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In order to improve the global efficiency of an engine within the French company Groupe PSA, a research axis focuses on gearbox thermalmanagement for a quicker reduction of its own friction losse after a cold start. The principle remains in deriving a little part of the coolant energy towards the gearbox – until now heated by its own internal frictions – as long as the impact on the engine warm-up is low enough for a global final gain. A compromise has then to be found between a gearbox performance enhancement and an engine degradation to get the better global consumption gain in the end. This

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8

Häggström, Martin. "Thermal modelling of a truck gearbox." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63753.

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The thermal regime of a gearbox is of considerable importance to its performance. Several significant gearbox parameters, such as the efficiency and fatigue life of its components, are temperature dependent. It is thus important to be able to determine the temperatures of the gearbox components during operation, but they are difficult to measure experimentally. A simulation model capable of predicting these temperatures would therefore be a valuable tool. The objective of this master’s thesis was to create a model capable of simulating the thermal regime of a truck gearbox during operation. To

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9

Juhlin-Dannfelt, Peter, and Johan Stridkvist. "Driveline Observer for an Automated Manual Gearbox." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6947.

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<p>The Automated Manual Transmission system Opticruise is dependent on signals from sensors located in different parts of the Scania trucks. These signals are of different qualities and have different update frequencies. Some signals and quantities that are hard or impossible to measure are also of importance to this system.</p><p>In this thesis a driveline observer for the purpose of signal improvement is developed and estimations of unknown quantities such as road incline and mass of the vehicle are performed. The outputs of the observer are produced at a rate of 100 Hz, and include in addit

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10

Prakash, del Valle Carlos. "Thermal modelling of an FZG test gearbox." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-157256.

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Gearboxes are always subject of study in order to increase their efficiency. Energy losses in gear contacts are transformed into heat which is distributed among the gearbox components increasing their temperature. A thermal model of the gearbox brings the opportunity of a deeper understanding of the heat dissipated related to the power losses in the gear contact. A MATLAB program based on ordinary differential equations was developed in order to make a thermal model of an FZG test gearbox. The model is based on a thermal network where each node represents a machine element. The thermal network

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11

Manresa, Pérez Álvaro, and Sanchez Ander Gonzalez. "Use of compliant mechanisms in gearbox applications." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18520.

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The purpose of this thesis is to prove that the use of compliant mechanisms in gearbox applications is viable. Compliant mechanisms are developed for their implementation in Scania’s hybrid asynchronous gearboxes. These mechanisms are presented as a replacement for the latch assembly currently in use to hold the position of the gear-shifting elements. The objective is to implement a compliant mechanism in order to avoid wear and increase the life cycle within the given constraints, as well as to have a better understanding of this kind of mechanisms. The presented literature study shows that b

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12

Pinheiro, Pedro Filipe Pinto. "Automatic management system for the AtlasCar gearbox." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10064.

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Mestrado em Engenharia Mecânica<br>O veículo AtlasCar é um protótipo desenvolvido pelo Laboratório de Automação e Robótica do Departamento de Engenharia Mecânica da Universidade de Aveiro, e tem como principais objetivos o estudo de sistemas de segurança ativos e passivos, técnicas de apoio à condução e soluções para a condução autónoma. Até ao momento, uma das maiores limitações a nível da atuação de mecanismos essenciais para a condução autónoma, verificada no AtlasCar, era a ausência de um sistema que permitisse o controlo da caixa de velocidades. Embora o comutador de caixa estives

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13

DAGA, ALESSANDRO PAOLO. "Vibration Monitoring: Gearbox identification and faults detection." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2763473.

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14

Wendelius, Ludvig. "Development of a SimulationModel of an Automatic Gearbox." Thesis, Umeå universitet, Institutionen för fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-58488.

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A simulation model for an automatic gearbox with primary retarder has been constructedand implemented, in this thesis. Together with other modelled vehicle components, thismodel could for example be used for fuel consumption estimation or optimizing vehicleparameters.The mechanical components and the control system inside the automatic gearbox weremodelled separately and then assembled into the nal gearbox model, using the objectorientedprogramming language Modelica. Modelica ensures that each individual componentcan be reused in other models.The gearbox model was validated through a number of

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15

Ljungbäck, Jacob. "Characterization of Cascade gearbox for wave energy converter." Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-182811.

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This Master Thesis, written in collaboration with CorPower Ocean, serves as the finalization of the author’s master degree education at KTH (Royal Institute of Technology) Stockholm. The purpose has been to characterize the Cascade gearbox which is used to convert vertical motion induced by waves to rotational motion which powers generators in the company’s future wave energy power plant. The purpose was also to suggest future improvements and shed light on any problems discovered. The method for characterizing the Cascade gearbox was to conduct physical measurements of the load sharing in the

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16

Ivanov, Dinko. "Gearbox housing design – topology optimization through generative design." Thesis, KTH, Maskinkonstruktion (Avd.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244983.

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Detta examensarbete använder ett systematiskt tillvägagångssätt för att omkonstruera ett växellådshus till ett elektriskt fordon med avsikt att förbättra prestanda med avseende på hållfasthet, livslängd och styvhet. I examensarbetet ges även en kort beskrivning av hur växellådan fungerar, vilken roll den spelar i de elektriska fordonen, samt grundläggande teori som används vid konstruktion av liknande växellådor. Den huvudsakliga arbetsmetoden som använts för att nå målen är topologioptimering och olika lösningar har simulerats för att förenkla den framtida omkonstruktionen. Analyser av de ol

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Alkhadafe, H. "Computational intelligence for fault diagnosis in gearbox systems." Thesis, Nottingham Trent University, 2015. http://irep.ntu.ac.uk/id/eprint/133/.

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Employing an efficient condition monitoring system in industrial applications is an important factor in improving the quality of production and increasing the operational life of machines by revealing machine faults at the earlier stage. Damage in gearbox system is one of the most catastrophic failures in machineries. Any defects related to a gearbox will influence the performance of an entire mechanical system. A reliable and efficient fault diagnosis system is required to reduce the maintenance cost and downtime, thereby preventing machinery performance degradation and failure. Many conditio

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18

Abdalla, Gaballa M. A. "Planetary gearbox condition monitoring based on modulation analysis." Thesis, University of Huddersfield, 2017. http://eprints.hud.ac.uk/id/eprint/32087/.

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The epicycle gearbox or planetary gearbox (PG) is a central power transmission systems of important machines such as helicopters and wind turbines which are mission critical and high cost systems. Condition monitoring (CM) has been explored extensively in recent years to avoid any unexpected interruptions and severe accidences caused by faults PGs. Although, considerable advancements in CM techniques, there still existed significant deficiency such as insensitivity, false diagnosis and high costs in implementing such techniques in industries. To improve CM techniques, therefore, this thesis fo

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19

Dogantimur, Erkan, and Daniel Johnsson. "Analysis of Accuracy for Engine and Gearbox Sensors." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388346.

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This thesis provides a standardized method to measure accuracy for engine and gearbox sensors. Accuracy is defined by ISO 5725, which states that trueness and precision need to be known to provide a metric for accuracy. However, obtaining and processing the data required for this is not straight forward. In this thesis, a method is presented that consists of two main parts: data acquisition and data analysis. The data acquisition part shows how to connect all of the equipment used and how to sample and store all the raw data from the sensors. The data analysis part shows how to process that ra

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20

Zhuang, Shengnan. "Gearbox housing topology optimization with respect to gear misalignment." Thesis, Linköpings universitet, Mekanik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-87263.

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Structural topology optimization methods have existing and been improving theoretically since 1980s; however, in industry, with respect to the certain conditions, proper modification is always desired. This study develops a specific method to utilize topology optimization for gearbox housing design. Gearbox housing maintains the position of the shafts to ensure the precision of gear engagement in all operational states (Naunheimer, et al., 2010). The current housing design processing used in Vicura AB, a Swedish powertrain company, is able to achieve stiff optimal housing material distribution

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21

Yesilyurt, Isa. "Gearbox fault detection and severity assessment using vibration analysis." Thesis, University of Manchester, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488107.

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22

Turner, Adam James. "Application of CFD to model an aeroengine internal gearbox." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/29105/.

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This thesis describes research undertaken to improve computational modelling capability for the internal gearbox (IGB) of an aeroengine. Using the commercial computational fluid dynamics (CFD) software ANSYS FLUENT modelling methodologies for regions within the IGB have been developed, applied and refined. The IGB is a bearing chamber that houses the bearings that support the low pressure, intermediate pressure and high pressure shafts and in addition the spiral bevel gear pair that enable power to be taken from the high pressure shaft to power aircraft auxiliary systems. Within civil aeroengi

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23

Bruce, Thomas. "Analysis of the premature failure of wind turbine gearbox bearings." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/13903/.

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Wind turbine gearbox bearings are the component that leads to the most downtime of operating wind turbines due to their high failure rates. Failures occur within 10 % of bearing design life, despite the fact that they are designed to the same bearing standards that satisfactorily predict bearing lifetime in many other industrial applications. No theory has yet been widely accepted to explain the reasons for this premature failure, despite intensive research effort and many theories have been suggested both from industrial and academic researchers alike. The most widely accepted theory at the c

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24

Staszewski, Wieslaw Jerzy. "The application of time-variant analysis to gearbox fault detection." Thesis, University of Manchester, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.552995.

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25

Jones, Rhys Gareth. "The mathematical modelling of gearbox vibration under applied lateral misalignment." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/54939/.

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In the mathematical modelling of gear vibrations it is found that there is a gap between the transient models developed in academia and the steady state models frequently used in industry. It is seen that the academic models are adept at modelling the nonlinear phenomena seen during gear contact for system with only a few degrees-of-freedom, whereas the industrial models are capable of solving the linear steady state response of more complex transmission systems. The work presented in this thesis attempts to bridge the gap between the two models, through the development of a transient nonlinea

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26

Krumins, Armands. "Gearbox fault detection, based on Machine Learning of multiple sensors." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301603.

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The increasing demand for higher efficiency and lower environmental impact of transmissions, used in automotive and wind energy industries has created a need for more advanced technical solutions to fulfil those requirements. Condition monitoring plays an important role in the transmission life cycle, saving resources and time. Recently condition monitoring, using machine learning has shifted from reactive to proactive action, predicting minor faults before they become significant. This thesis intends to develop a methodology that can be used to predict faults like pitting initiation, before p

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27

Polly, Joseph H. "An Experimental Investigation of Churning Power Losses of a Gearbox." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1362745236.

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28

Rutledge, Matthew S. "Aircraft Gearbox Dynamics Subject to Electromechanical Actuator Regenerative Energy Flow." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1292358176.

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29

Simpson, D. J. A. "The object-oriented paradigm applied to the design and analysis of mechanical systems." Thesis, Heriot-Watt University, 1996. http://hdl.handle.net/10399/717.

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30

Åkerblom, Mats. "Gearbox noise : Correlation with transmission error and influence of bearing preload." Doctoral thesis, KTH, Maskinkonstruktion (Inst.), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9899.

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The five appended papers all deal with gearbox noise and vibration. The first paper presents a review of previously published literature on gearbox noise and vibration. The second paper describes a test rig that was specially designed and built for noise testing of gears. Finite element analysis was used to predict the dynamic properties of the test rig, and experimental modal analysis of the gearbox housing was used to verify the theoretical predictions of natural frequencies. In the third paper, the influence of gear finishing method and gear deviations on gearbox noise is investigated in wh

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31

Enocksson, Staffan. "Modeling in MathWorks Simscapeby building a model of an automatic gearbox." Thesis, Uppsala universitet, Avdelningen för systemteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-151891.

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The purpose of this thesis work has been to analyze the usability and the feasibility formodeling with MathWorks simulation tool Simscape by building a simplified model ofthe automatic gearbox ZF-ECOMAT 4 (HP 504 C / HP 594 C / HP 604 C). It hasbeen shown throughout the thesis how this model is build. First has systemknowledge been acquired by studying relevant literature and speaking with thepersons concerned. The second step was to get acquainted with Simscape and thephysical network approach. The physical network approach that is accessible throughthe Simscape language makes is easy to buil

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32

Vatkar, Shirish Talia Jorge E. "Design of a two stage epicyclic gearbox in sintered metal gears." Diss., A link to full text of this thesis in SOAR, 2007. http://soar.wichita.edu/dspace/handle/10057/1183.

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Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering..<br>"May 2007." Title from PDF title page (viewed on Dec. 29, 2007). Thesis adviser: George Talia. Includes bibliographic references (leaves 100-101).

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Unibaso, Eguzkitza Beñat, and Dobón Ismael Ismail. "Development of a flexible test platform utilizing gearbox simulators through programming." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-12415.

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A gearbox simulator is developed as platform for testing and demonstrating purposes. For that, a rig composed by a mechanical system and electronic equipment for controlling two servomotors is used. The objective of this equipment is to simulate the forces that the gearbox would transmit to the gear lever when the gear change operation is being carried-out. To reach this goal, a program is developed in LabVIEW to command the servomotors, emulating the forces by controlling the output torque and transmitting them to the gear stick as it would be in a real gearbox, taking into account real force

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34

Åkerblom, Mats. "Gearbox noise : correlation with transmission error and influence of bearing preload /." Stockholm : Maskinkonstruktion, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9899.

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Shen, Anne Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Optimised reduction of the radiated noise from the casing of a constant speed gearbox." Publisher:University of New South Wales. Mechanical & Manufacturing Engineering, 2008. http://handle.unsw.edu.au/1959.4/43020.

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This thesis presents a comprehensive methodology for predicting and minimising the noise radiated from a constant speed gearbox assembly by means of attaching optimally placed stiffening ribs on the casing. The procedure involves building an FE model of the gearbox, which is updated using modal parameters extracted from a modal test. This is followed by synthesis of the required FRFs with respect to the forcing degrees-of-freedom. The forces, which are assumed to act only at the bearings are identified from these FRFs and the measured operational velocities of the casing. The identified forces

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Paya, Basir Abdul. "Vibration condition monitoring and fault diagnostics of rotating machinery using artificial neural networks." Thesis, Brunel University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390220.

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Al-Balushi, Khamis Rajab Nasser. "The use of high frequency stress waves for monitoring gears." Thesis, Cranfield University, 1995. http://dspace.lib.cranfield.ac.uk/handle/1826/10575.

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The aim of this research is to investigate the feasibility of using stress waves for condition monitoring of gears. The project involved setting up an experimental rig, carrying out experimental work, acquiring stress waves signatures, and processing the signals. It has been shown that stress waves can successfully be employed for early detection of incipient gear failure. A experimental gearbox was employed during the experiments. Miniature ultrasound transducers, both sensitive and sufficiently small, were manufactured and installed on the stationary outer race of the rolling element bearing

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Henriksson, Mats. "Analysis of dynamic transmission error and noise from a two-stage gearbox /." Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-488.

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Svensson, Gustav, and Mischa Huisman. "Concepts for a suitable condition based monitoring system for a planetary gearbox." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-74787.

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In the trends of technical improvements and automatization is it important for companies to keep up with the developments to be competitive on the market. SwePart Transmissions AB is a company that manufacture and develop gearboxes for the currently growing robot arms industry and the main task with this study is to investigate how to apply condition based monitoring on a new gearbox from the company. The work considers vibration analysis and testing new ideas in the oil analysis field. The tests that were performed are based on measuring the difference in impedance or magnetic field due to th

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Marx, Alexandre Maxìme Andre. "An in-depth comparative study of direct drive versus gearbox wind turbines." Thesis, KTH, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-245060.

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The wind turbine industry is constantly growing and new concepts are flourishing to improve the performance of the turbine drive-train. Typically in conventional large-scale wind power generators, a gearbox is used between the turbine rotor and the electrical generator to increase the rotational speed from around 100 rpm to around 1200 rpm. Other technologies, such as the direct-drive ones, apply a low-speed generator to avoid using a gear and are gaining ground in recent years both in the field of research and in commercial applications. The question is very relevant whether the direct-drive

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McDonald, Kyler. "An Experimental Study of Spin Power Losses of a High-Speed Gearbox." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523371969014841.

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42

Howard, Thomas Peter. "Development of a novel bearing concept for improved wind turbine gearbox reliability." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/11631/.

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The wind industry has experienced rapid growth in recent years as a result of ever increasing concerns over fossil fuel power generation and the associated impact this has upon climate change. Wind turbine technology has however displayed relatively poor reliability from the outset, largely due to the highly variable nature of the wind, which subsequently places system components under extremely harsh loading conditions. Such reliability issues are becoming increasingly problematic for the wind turbine operator, as wind farms – and indeed the turbines themselves – continue to be up-scaled thus

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43

Guan, Yunpeng. "Velocity Synchronous Approaches for Planetary Gearbox Fault Diagnosis under Non-Stationary Conditions." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38636.

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Time-frequency methods are widely used tools to diagnose planetary gearbox fault under non-stationary conditions. However, the existing time-frequency methods still have some problems, such as smearing effect and cross-term interference, and these problems limit the effectiveness of the existing time-frequency methods in planetary gearbox fault diagnosis under non-stationary conditions. To address the aforementioned problems, four time-frequency methods are proposed in this thesis. As nowadays a large portion of the industrial equipment is equipped with tachometers, the first three methods ar

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Černuško, Lukáš. "Převodovka pro pohon přední nápravy vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318518.

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Goal of the Master Thesis was to design conception of electric vehicle driveline, which is able of torque vectoring between each wheel independently and to design front axle gearbox. The aim was to use up the car on race track and to test dynamic properties of electric vehicle for follow-up development. Due to determined requirements and possible solutions the conception of driveline was designed and basic parameters were defined. The main part of the thesis contains a design of gearbox including strength calculation of gearing, the control of shafts to fatigue and elasticity limiting states,

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BERLATO, Francesco. "DIAGNOSTICA VIBRAZIONALE DI RIDUTTORI EPICICLOIDALI IN AMBIENTE INDUSTRIALE: PROCEDURE, IMPLEMENTAZIONE E VALIDAZIONE." Doctoral thesis, Università degli studi di Ferrara, 2017. http://hdl.handle.net/11392/2487841.

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Questa Tesi di Dottorato di ricerca concerne lo sviluppo,l’implementazione e la validazione sperimentale di metodologie per il monitoraggio,la diagnostica ed il controllo qualità di rotismi,basate su tecniche avanzate ed innovative di analisi sperimentale delle vibrazioni e di analisi del segnale,con particolare riferimento ai rotismi epicicloidali.L’analisi delle vibrazioni in questo tipo di rotismi è resa complessa dal movimento dei satelliti che fa variare continuamente la distanza –e conseguentemente le funzioni di trasferimento- tra le sorgenti di vibrazioni (ingranamenti e cuscinetti) ed

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Saribay, Zihni Burçay Smith Edward C. Rao Suren B. Bill Robert C. Wang K. W. "Analytical investigation of the pericyclic variable-speed transmission system for helicopter main-gearbox." [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-4689/index.html.

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Schön, Peter Paul. "Unconditionally convergent time domain adaptive and time-frequency techniques for epicyclic gearbox vibration." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-08282007-142010.

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Al-Hamadani, Haider Rahman Dawood. "System dynamic modelling of wind turbine gearbox under normal and transient operating conditions." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/20545/.

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Srinivasan, Vijay. "Mobility Analysis of Structure-borne Noise Paths in a Simplified Rotorcraft Gearbox System." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276884944.

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LI, MINGFENG. "ACTIVE VIBRATION CONTROL OF A GEARBOX SYSTEM WITH EMPHASIS ON GEAR WHINE REDUCTION." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1115131866.

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