Literatura académica sobre el tema "Rotors – Dynamics"
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Artículos de revistas sobre el tema "Rotors – Dynamics"
Liu, Bao Guo, Hai Feng Hua, Long Wang Yue y Xiao Ding Xu. "Design of the Post-Processor for Rotors Dynamics Based on the STEP Standard". Advanced Materials Research 706-708 (junio de 2013): 1871–76. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.1871.
Texto completoJalal, Sara, Fernando Ponta, Apurva Baruah y Anurag Rajan. "Dynamic Aeroelastic Response of Stall-Controlled Wind Turbine Rotors in Turbulent Wind Conditions". Applied Sciences 11, n.º 15 (27 de julio de 2021): 6886. http://dx.doi.org/10.3390/app11156886.
Texto completoZaytsev, Nikolay, Denis Zaytsev, Andrey Makarov y Dmitriy Mineev. "NUMERICAL SIMULATION OF THE DYNAMICS OF A FLEXIBLE ROTOR WITH TWO BALL AUTO-BALANCERS". Perm National Research Polytechnic University Aerospace Engineering Bulletin, n.º 62 (2020): 31–44. http://dx.doi.org/10.15593/2224-9982/2020.62.04.
Texto completoPacholczyk, Michał y Dariusz Karkosiński. "Parametric Study on a Performance of a Small Counter-Rotating Wind Turbine". Energies 13, n.º 15 (29 de julio de 2020): 3880. http://dx.doi.org/10.3390/en13153880.
Texto completoFan, Ye Sen, San Min Wang y Zhen Yang. "Dynamic Characteristics of the Coupled System of the High Pressure Rotor and the Radial Driveshaft of a Turbofan Engine". Advanced Materials Research 44-46 (junio de 2008): 127–34. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.127.
Texto completoPacholczyk, Michał, Krzysztof Blecharz y Dariusz Karkosiński. "Numerical investigation on the performance of a small counter-rotating wind turbine". E3S Web of Conferences 116 (2019): 00055. http://dx.doi.org/10.1051/e3sconf/201911600055.
Texto completoMimmi, G. y P. Pennacchi. "Analytical model of a particular type of positive displacement blower". Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 213, n.º 5 (1 de mayo de 1999): 517–26. http://dx.doi.org/10.1243/0954406991522743.
Texto completoKaleta, Jiří, Josef Michl, Cécile Mézière, Sergey Simonov, Leokadiya Zorina, Pawel Wzietek, Antonio Rodríguez-Fortea, Enric Canadell y Patrick Batail. "Gearing motion in cogwheel pairs of molecular rotors: weak-coupling limit". CrystEngComm 17, n.º 41 (2015): 7829–34. http://dx.doi.org/10.1039/c5ce01372k.
Texto completoMuszynska, Agnes, Charles T. Hatch y Donald E. Bently. "Dynamics of Anisotropically Supported Rotors". International Journal of Rotating Machinery 3, n.º 2 (1997): 133–42. http://dx.doi.org/10.1155/s1023621x97000134.
Texto completoMimmi, Giovanni y Paolo Pennacchi. "Compression Load Dynamics in a Special Helical Blower: A Modeling Improvement". Journal of Mechanical Design 123, n.º 3 (1 de octubre de 1999): 402–7. http://dx.doi.org/10.1115/1.1377016.
Texto completoTesis sobre el tema "Rotors – Dynamics"
Jarroux, Clément. "Nonlinear transient dynamics of on-board rotors supported by Active Magnetic Bearings". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI069/document.
Texto completoTurbomachines are rotating machines enabling the conversion of the different types of energy. The latter are composed of a rotating mechanical part, called rotor, interacting with a fluid. Therefore, rotation play a key role in these machines and the mechanical link between the fixed and the rotating parts, called bearing, is essential for reliable and optimal operations. Turbomachines supported by active magnetic bearings (AMBs) are increasingly used by industrial companies, especially thanks to the absence of direct contact between fixed and rotating parts, enabling energy savings and reduction of CO2 emissions. Most of the time, these machines are "on-board" and are fixed on mobile supports. The motions generated by these supports must be considered in the prediction of the dynamic behaviour of turbomachinery in order to improve the designs accordingly. This PhD is a contribution to the study of turbomachines supported by AMBs subjected to strong external base motions. The approach is numerical and experimental. The use of an academic scale test rig comprising a rotor-AMB system, with the properties of an industrial turbomachine, allowed to test the developed models for cases of external solicitations such as earthquake and shock, thanks to the 6-axis shaker of the equipex PHARE. It is shown that the model provides good predictions of the behaviour of the machine for the tested cases. This tool can therefore be used for industrial designs
Matos, Catherine Anne Moseley. "Download reduction on a wing-rotor configuation". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12058.
Texto completoRigsby, James Michael. "Stability and control issues associated with lightly loaded rotors autorotating in high advance ratio flight". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26536.
Texto completoCommittee Chair: J.V.R. Prasad; Committee Member: Daniel P. Schrage; Committee Member: David A. Peters; Committee Member: Dewey H. Hodges; Committee Member: Lakshmi N Sankar. Part of the SMARTech Electronic Thesis and Dissertation Collection.
El-Shafei, Aly. "Dynamics of rotors incorporating squeeze film dampers". Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/87804.
Texto completoHe, Chengjian. "Development and application of a generalized dynamic wake theory for lifting rotors". Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/12389.
Texto completoBitzer, Michael. "Identification of an improved body aerodynamics model for the BO 105". Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/13832.
Texto completoRiley, Troy M. "Aeroacoustics and Fluid Dynamics Investigation of Open and Ducted Rotors". University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627667464605408.
Texto completoMendes, Ricardo Ugliara 1987. "Desenvolvimento de um sistema de atuação magnética para excitação de sistemas rotativos". [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264158.
Texto completoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
Made available in DSpace on 2018-08-17T15:03:09Z (GMT). No. of bitstreams: 1 Mendes_RicardoUgliara_M.pdf: 2835811 bytes, checksum: c8cae753b116c3893246e25fb64fdf4c (MD5) Previous issue date: 2011
Resumo: Máquinas rotativas apresentam um vasto campo de aplicação como aeronaves, fábricas, laboratórios e usinas de energia. Estas aplicações contêm eixos girando a altas velocidades que devem ter alto nível de confiabilidade. Assim, a análise do comportamento dinâmico destas bombas e turbinas é necessária para estabelecer padrões de funcionamento do equipamento. Ultimamente, com projetos feitos com auxílio de computador, modelos de elementos finitos de eixos incluindo mancais, discos, selos e acoplamentos têm sido desenvolvidos. Através destes modelos, o comportamento das máquinas pode ser previsto, permitindo projetos otimizados baseados nos cálculos de velocidades críticas e simulações de instabilidades do filme de óleo. Estas informações fornecem a base para o desenvolvimento de controladores para reduzir vibrações durante a partida de máquinas, assim como aceleração ou desaceleração através das velocidades críticas, ou ainda para controlar instabilidades do filme de óleo. Uma das técnicas aplicadas na identificação de parâmetros de máquinas e estruturas é a análise modal, a qual consiste em aplicar uma força de perturbação no sistema e, então, medir sua resposta. Entretanto, há uma dificuldade que traz limitações à excitação de sistemas com eixos rotativos, quando utilizando martelos de impacto ou shakers, uma vez que, devido ao atrito, forças tangenciais e ruídos indesejados podem ser aplicados ao sistema. Portanto, o estudo de uma técnica de excitação externa sem contato se torna de grande interesse. Neste sentido, o presente trabalho trata do estudo e desenvolvimento de um modelo em elementos finitos de máquinas rotativas integrado ao modelo de um atuador magnético como fonte de excitação externa, focando na resposta do modelo e sua interação com o atuador. Também é apresentada uma comparação entre simulações numéricas e testes práticos obtidos de uma bancada experimental
Abstract: Rotating machines have a wide range of application such as airplanes, factories, laboratories and power plants. These applications contain shafts rotating at high speeds that must have high trust levels. Thus, the dynamic behavior analysis of these pumps and turbines is required to establish operational patterns of the equipment. Lately, with computer aid design, shafts finite element models including bearings, discs, seals and couplings have been developed. Through these models the machines behavior can be predicted, allowing optimized design based on the critical speeds calculus and oil instabilities simulations. These informations provide the basis for controller development in order to reduce vibrations during the machines start-up and acceleration or deceleration through the critical speeds, or even to control oil instabilities. One of the technique es applied in parameters identification of machines and structures is the modalanalysis, which con sists of applying a perturbation force into the system and then to measure its response. However, there is a difficulty that brings limitations to the excitation of systems with rotating shafts when using impact hammers or shakers, due to friction, undesired tangential forces and noise that can be applied to the system. Therefore, the study of a non-contact technique of external excitation becomes of high interest. In this sense, the present work deals with the study and development of a finite element model for rotating machines using a magnetic actuator as source of external excitation, focusing on the model response and its interaction with the actuator. It is also presented a comparison between the numerical simulations and practical tests obtained from a rotor test rig
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica
Medeiros, Everton Coelho de. "Projeto e avaliação do comportamento dinâmico de um conjunto de mancais hidrodinâmicos aplicados a um rotor Jeffcott /". Guaratinguetá, 2017. http://hdl.handle.net/11449/151475.
Texto completoCoorientador: Willy Roger de Paula Mendonça
Banca: José Elias Toamzini
Banca: Everaldo de Barros
Resumo: Os estudos relacionados a máquinas rotativas são muito importantes no apoio e manutenção da operação de máquinas de grande porte, tais como turbo compressores ou turbinas. Modelos analíticos e numéricos têm sido aplicados por anos, entretanto, eles nem sempre apresentam as condições reais dessas máquinas. Por isso, o uso de procedimentos experimentais para a avaliação e validação de resultados de máquinas rotativas é importante para a etapa de projeto mecânico. O uso de modelos em escala, por exemplo, turbinas hidráulicas ou turbinas a vapor, tem sido comum nesta área. Um rotor é dividido em várias partes, sendo uma delas os elementos de suporte, mais especificamente os mancais. Os mancais podem ser divididos em vários tipos, os mais utilizados são os do tipo rolamento e tipo hidrodinâmico. Devido este último ser o mais encontrado em máquinas pesadas, seu estudo é muito importante. Este trabalho objetiva apresentar o projeto de um protótipo de um mancal hidrodinâmico e sua avaliação experimental. O mancal desenvolvido consiste de uma bucha de bronze montada sobre uma casa de mancal de alumínio e sistemas de vedação para o óleo lubrificante. As geometrias das buchas e as propriedades dos fluidos foram analisadas pela medição do comportamento dinâmico de um rotor apoiados por esses mancais. Esta avaliação foi baseada na medição de uma bancada do tipo Jeffcott apoiada em um par de mancais hidrodinâmicos em condições diversas, incluindo combinações entre mancais do tipo rolamento... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Studies related to rotary machines are very important to support and keep the operation of large machines such as turbochargers or turbines. Analytical and numerical models have been applied for years, however, they do not always present the real condition of these machines. Therefore, the use of experimental procedures for the evaluation and validation of rotating machine results is important for mechanical design step. The use of scale models, for example, hydraulic turbines or steam turbines, has been very common in this area. A rotor is divided into several parts, one of which is the support elements, more specifically the bearings. The bearings can be divided into several types, the most common are the ball/roller bearing and the hydrodynamic bearing. Due to the latter be the most applied in heavy machinery, his study is very important. This work aims to show the design of a prototype of a hydrodynamic bearing and its experimental evaluation. The developed bearing consists of a bronze bushing mounted on an aluminum bearing housing and sealing systems for lubricating oil. The bushing geometries and the properties of the fluids are analyzed by measuring the dynamic behavior of a rotor supported by these bearings. This evaluation was based on the measurement of a Jeffcott rotor test bench supported by hydrodynamic bearings under a variety of conditions, including combinations of rolling and hydrodynamic type bearings,variation of the internal geometry of the bronze bushing ... (Complete abstract click electronic access below)
Mestre
Jayasuriya, Arachige Tilak A. "Dynamics of unbalanced rotors on rigid and flexible bearings". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0016/MQ48062.pdf.
Texto completoLibros sobre el tema "Rotors – Dynamics"
Kiciński, Jan. Rotor dynamics. 2a ed. Gdańsk: Wydawn. IMP PAN, 2006.
Buscar texto completoKrämer, Erwin. Dynamics of Rotors and Foundations. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1.
Texto completoDynamics of rotors and foundations. Berlin: Springer-Verlag., 1993.
Buscar texto completoKrämer, Erwin. Dynamics of Rotors and Foundations. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.
Buscar texto completoRao, J. S. Rotor dynamics. 2a ed. New York: J. Wiley, 1991.
Buscar texto completoRao, J. S. Rotor dynamics. 2a ed. New Delhi: Wiley Eastern, 1991.
Buscar texto completoI, Friswell M., ed. Fundamentals of rotor dynamics. New York: Cambridge University Press, 2010.
Buscar texto completoConference on Mechanical Vibration and Noise (12th 1989 Montreal, Quebec). Rotating machinery dynamics. New York, N.Y. (345 E. 47th St., New York 10017): American Society of Mechanical Engineers, 1989.
Buscar texto completoInternational Symposium on Transport Phenomena and Dynamics of Rotating Machinery (3rd 1990 Honolulu, Hawaii). Rotating machinery--dynamics: Proceedings of the Third International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-3). Washington: Hemisphere Pub. Corp., 1992.
Buscar texto completoRotordynamics. Boca Raton: Taylor & Francis, 2005.
Buscar texto completoCapítulos de libros sobre el tema "Rotors – Dynamics"
Krämer, Erwin. "Cracked Rotors". En Dynamics of Rotors and Foundations, 329–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_23.
Texto completoKrämer, Erwin. "Vertical Rotors". En Dynamics of Rotors and Foundations, 115–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_8.
Texto completoNordmann, Rainer. "Dynamics of Flexible Rotors". En Magnetic Bearings, 251–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00497-1_10.
Texto completoGenta, Giancarlo. "Dynamics of controlled rotors". En Mechanical Engineering Series, 581–613. New York, NY: Springer US, 2005. http://dx.doi.org/10.1007/0-387-28687-x_16.
Texto completoKrämer, Erwin. "Bending Stresses in Rotors". En Dynamics of Rotors and Foundations, 325–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_22.
Texto completoKrämer, Erwin. "Rotors with Oil-film Bearings". En Dynamics of Rotors and Foundations, 97–114. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_7.
Texto completoKrämer, Erwin. "Introduction". En Dynamics of Rotors and Foundations, 3–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_1.
Texto completoKrämer, Erwin. "Shaft Seals". En Dynamics of Rotors and Foundations, 143–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_10.
Texto completoKrämer, Erwin. "Steam Whirl". En Dynamics of Rotors and Foundations, 161–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_11.
Texto completoKrämer, Erwin. "Internal Damping". En Dynamics of Rotors and Foundations, 169–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-02798-1_12.
Texto completoActas de conferencias sobre el tema "Rotors – Dynamics"
Marin, Manuel A. "Rotor Dynamics of Overhung Rotors: Hysteretic Dynamic Behavior". En ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68285.
Texto completoFriedmann, Peretz, Kuo-An Yuan, Thomas Millott y Comandur Venkatesan. "Correlation studies for hingeless rotors in forward flight". En Dynamics Specialists Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-1722.
Texto completoBeylich, Alfred E. "An interlaced system for rigid rotors". En RAREFIED GAS DYNAMICS: 22nd International Symposium. AIP, 2001. http://dx.doi.org/10.1063/1.1407593.
Texto completoSteijl, R., G. Barakos y K. Badcock. "A CFD Framework for Analysis of Helicopter Rotors". En 17th AIAA Computational Fluid Dynamics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-5124.
Texto completoGupta, K., R. Kumar, M. Tiwari y O. Prakash. "Effect of Rotary Inertia and Gyroscopic Moments on Dynamics of Two Spool Aeroengine Rotor". En ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-045.
Texto completoIancu, Florin, Janusz Piechna y Norbert Müller. "Numerical Solutions for Ultra-Micro Wave Rotors (UmWR)". En 35th AIAA Fluid Dynamics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-5034.
Texto completoTatossian, Charles y Siva Nadarajah. "Optimum Shape Design of Helicopter Rotors via Control Theory". En 18th AIAA Computational Fluid Dynamics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-3951.
Texto completoDaly, John, Elvis Sheik Bajeet, Ajit Thakker y Patrick Frawley. "A 3D Computational Fluid Dynamics Analysis of the Wells Turbine". En ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31321.
Texto completoDang, Ying, S. Subramanian y Gopal Gaonkar. "Modeling turbulence seen by multibladed rotors for predicting rotorcraft response with three-dimensional wake". En Dynamics Specialists Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1217.
Texto completoShang, Xiaoyang y Dewey Hodges. "Aeroelastic stability of composite hingeless rotors with advanced configurations". En 37th Structure, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1548.
Texto completoInformes sobre el tema "Rotors – Dynamics"
Zheng, Wanzheng y Jason Merret. Aerodynamic Survey of Novel eVTOL Configuration Using SU2. Illinois Center for Transportation, agosto de 2022. http://dx.doi.org/10.36501/0197-9191/22-014.
Texto completoEngblom, John J. y Ozden O. Ochoa. Nonlinear Dynamic Responses of Composite Rotor Blades. Fort Belvoir, VA: Defense Technical Information Center, agosto de 1988. http://dx.doi.org/10.21236/ada200145.
Texto completoVande Vate, John H., John J. Bartholdi y III. Static and Dynamic Balance of Rotor Stacks. Fort Belvoir, VA: Defense Technical Information Center, abril de 1995. http://dx.doi.org/10.21236/ada299409.
Texto completoBartholdi III, John J. y John H. Vande Vate. Static and Dynamic Balance of Rotor Stacks. Fort Belvoir, VA: Defense Technical Information Center, febrero de 1998. http://dx.doi.org/10.21236/ada340085.
Texto completoWatson, Kevin, Jason Cormey, Narayanan Komerath y James DiOttavio. Diagnostics of 3D Dynamic Stall on Rotor Blades. Fort Belvoir, VA: Defense Technical Information Center, junio de 2008. http://dx.doi.org/10.21236/ada499703.
Texto completoShabana, Ahmed A. A New Non-Incremental Finite Element Solution Procedure for Rotor Dynamics. Fort Belvoir, VA: Defense Technical Information Center, noviembre de 2005. http://dx.doi.org/10.21236/ada440805.
Texto completoSokolov, Volodymyr, Oleg Krol, Oksana Stepanova y Petko Tsankov. Dynamic Characteristics of Rotary Motion Electrohydraulic Drive with Volume Regulation. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, mayo de 2020. http://dx.doi.org/10.7546/crabs.2020.05.12.
Texto completoSrinivasan, Ganapathi R. A Free-Wake Euler and Navier-Stokes CFD Method and its Application to Helicopter Rotors Including Dynamic Stall. Fort Belvoir, VA: Defense Technical Information Center, noviembre de 1993. http://dx.doi.org/10.21236/ada278000.
Texto completoChaplin, Harvey R. Some Dynamic Properties of a Rigid Two-Bladed Fully Gimballed Rotor with Teetering Feedback. Fort Belvoir, VA: Defense Technical Information Center, julio de 1986. http://dx.doi.org/10.21236/ada194946.
Texto completoGillard, William J. Innovative Control Effectors (Configuration 101) Dynamic Wind Tunnel Test Report. Rotary Balance and Forced Oscillation Tests. Fort Belvoir, VA: Defense Technical Information Center, julio de 1998. http://dx.doi.org/10.21236/ada362903.
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