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Статті в журналах з теми "Contrôle de quadrator":
Costa, Antônio Fernando Branco, and Maysa Sacramento de Magalhães. "O uso da estatística de qui-quadrado no controle de processos." Gestão & Produção 12, no. 2 (August 2005): 271–77. http://dx.doi.org/10.1590/s0104-530x2005000200010.
Zhang, Wei. "Based on the State Feedback Optimal Controler Design." Applied Mechanics and Materials 241-244 (December 2012): 1265–68. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.1265.
Moutinho, Marcelo Nascimento, Walter Barra Jr., Carlos Tavares da Costa Jr, and José Augusto Lima Barreiros. "Técnica de controle preditivo baseado em modelo aplicada ao controle de tensão de um gerador síncrono - resultados experimentais." Sba: Controle & Automação Sociedade Brasileira de Automatica 23, no. 5 (October 2012): 570–82. http://dx.doi.org/10.1590/s0103-17592012000500005.
Rasina, Irina Viktorovna, and Oles Vladimirovich Fesko. "Approximate optimal control synthesis for nonuniform discrete systems with linear-quadratic state." Program Systems: Theory and Applications 10, no. 2 (2019): 67–77. http://dx.doi.org/10.25209/2079-3316-2019-10-2-67-77.
ZANUNCIO, José Cola, Adalton Pinheiro da CRUZ, Darcy Francisco dos SANTOS, and Marco Antonio de OLIVEIRA. "EFICIÊNCIA DA ISCA MIREX-S (SULFURAMIDA 0,3%) NO CONTROLE DE Atta cephalotes(HYMENOPTERA: FORMICIDAE) EM TRÊS DOSAGENS." Acta Amazonica 26, no. 1-2 (June 1996): 115–20. http://dx.doi.org/10.1590/1809-43921996261120.
Oliveira, Joanabell Araújo de, and Beatriz Bertolaccini Martínez. "Manual educativo para prevenção e controle da rabdomiólise em exercícios físicos militares." Research, Society and Development 11, no. 6 (April 18, 2022): e2611628600. http://dx.doi.org/10.33448/rsd-v11i6.28600.
Silva, Magno José Gomes da, Clivaldo Silva de Araújo, Saulo de Tarso Marques Bezerra, Simplício Arnaud, Cícero da Rocha Souto, and Heber Pimentel Gomes. "Sistema de controle adaptativo aplicado a um sistema de distribuição de água com ênfase na eficiência energética." Engenharia Sanitaria e Ambiental 20, no. 3 (September 2015): 405–13. http://dx.doi.org/10.1590/s1413-41522015020000107226.
CRUZ, Adalton Pinheiro da, José Cola ZANUNCIO, Ronald ZANETTI, and Odilávio Sá GOMES. "EFICIÊNCIA DE ISCAS GRANULADAS À BASE DE SULFLURAMIDA E DE CLORPIRIFÓS NO CONTROLE DE Atta sexdens sexdens(HYMENOPTERA: FORMICIDAE), NO TRÓPICO ÚMIDO." Acta Amazonica 26, no. 3 (September 1996): 145–50. http://dx.doi.org/10.1590/1809-43921996263150.
Fernandes, Darlan, João Martins, Fabiano Costa, and Maurício Correa. "Sensitive Three-phase Load Voltage Compensation Based On A Repetitive And Least Squares Control System." Eletrônica de Potência 22, no. 3 (September 1, 2017): 237–45. http://dx.doi.org/10.18618/rep.2017.3.2681.
Shi, Guojun, and Robert E. Skelton. "Markov Data-Based LQG Control1." Journal of Dynamic Systems, Measurement, and Control 122, no. 3 (October 6, 1998): 551–59. http://dx.doi.org/10.1115/1.1286868.
Дисертації з теми "Contrôle de quadrator":
Wang, Siyuan. "Contôle homogène de quadrator : théorie et expérience." Thesis, Centrale Lille Institut, 2020. http://www.theses.fr/2020CLIL0026.
In the past several decades, quadrotor control problems attract more attentions of the researcher comparing withother flying vehicles. However, most of the commercial products still use linear PID controller, which provides sufficientlygood performance. Development of a controller, which would convince theindustry to use it instead of linear PID, is still a challenge. The aim of this thesis is to show that homogeneous controller is a possiblealternative to linear one. For this purpose, a new methodof upgrading linear algorithm to homogeneous one is proposed. It uses the gains of linear controller/observer provided by the manufacturer for tuning of homogeneous algorithm. The experimental results support the theoretical developments and confirm a significant improvement of quadrotor’s control quality:better precision, more robustness and faster response
Felão, Luiz Henrique Vitti. "High gain approach and sliding mode control applied to quadrature interferometer /." Ilha Solteira, 2019. http://hdl.handle.net/11449/190782.
Abstract: Interferometers are extremely sensitive measurement devices, which use the principle of interference between two or more sources of light to generate a pattern of constructive and destructive interference. This pattern contains information about the physical phenomenon under study, and their light intensity can be used to calculate the optical path difference traveled by the two beams. The optical path difference and light intensity relationship is given by a cosine type function. Large disturbances can change the interferometer operation point, reaching nonlinear regions of the interferometric curve and even inducing ambiguities due to the periodicity of the input/output relationship. The present work concerns with the modeling, development and application of a control strategy based on sliding mode control, in a two-beam quadrature interferometer. It was used the high gain approach, which consists in to fully compensate the phase shifts induced on the sensor arm with the control system, in such a way that the voltage control signal becomes proportional to the phase disturbances. Therefore, the demodulation process does not require phase unwrapping algorithms. This implemented system showed capability to improve dynamic range and bandwidth when compared with other control systems in literature that were based on different high gain approach topologies. Also a new method of interferometric phase demodulation is proposed allying this control strategy to a virtual emulated inte... (Complete abstract click electronic access below)
Resumo: Interferômetros são dispositivos de medição extremamente sensíveis, os quais utilizam o princípio de interferência entre duas ou mais fontes de luz para gerar um padrão de interferência construtiva e destrutiva. Este padrão contém informação sobre os fenômenos físicos sob estudo, e sua intensidade luminosa pode ser usada para calcular a diferença de caminho óptico acumulada pelos dois feixes de luz. A diferença de caminho óptico e a intensidade de luz são relacionadas por uma função cossenoidal. Grandes distúrbios podem alterar o ponto de operação do interferômetro, alcançando regiões não lineares da curva característica do interferômetro e até mesmo induzindo ambiguidades, devido à periodicidade da relação entrada/saída. Este trabalho preocupou-se com o modelamento, desenvolvimento e aplicação de uma estratégia de controle baseada em controle com modos deslizantes, em um interferômetro de dois feixes em quadratura. Foi utilizada a abordagem de alto ganho, a qual consiste em utilizar o sistema de controle para compensar completamente os deslocamentos de fase induzidos no braço sensor, de tal forma que o sinal de controle se relaciona com os deslocamentos de fase por uma equação de reta. Portanto o processo de demodulação não necessita de algoritmos de desdobramento de fase. O sistema implementado mostrou capacidade de melhorar a faixa dinâmica e largura de banda quando comparado com outros sistemas de controle na literatura, também baseados na abordagem de alto ganho. Destaca... (Resumo completo, clicar acesso eletrônico abaixo)
Doutor
Santos, José Eduardo Weber dos. "Método de ajuste para MPC baseado em multi-cenários para sistemas não quadrados." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/141217.
Due to their versatility and reliability, Model Predictive Controllers (MPCs) are the standard solution for advanced process control in the process industry. However, there is a gap between the academic developments and the actual industrial applications, since the most academic studies focus on systems working with set-points and same number of manipulated and controlled variables, whereas the industrial application cope with non-squared configuration usually with several controlled variables in ranging and a reduced number of manipulated variables. This work proposes a tuning methodology for the countable parameters presents in a typical industrial predictive controller, considering the variety of the algorithms presents commercially in the process industry. This methodology is based on the estimation of the best attainable performance for each scenario of the global model of the process, constrained by the relative Robust Performance Number (rRPN), Maximal Sensitivity and restrictions in the control actions. Based on a performance that is attainable, the linear global model is scaled (and the non-linear) and the weights that lead the system to the best operational condition are estimated. This technique covers controllers operating in zones of control and/or set-point tracking and non-square configurations, i.e., with more controlled variables than manipulated. The proposed approach was tested in a Quadruple-Spherical tanks heating system presenting coherent results indicating its potential for industrial applications.
Barão, Renato Casali. "Algoritmos de controle ótimo quadrático com restrições." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/3/3139/tde-22032004-194309/.
The goal of the work is to present two algorithms for the solution of robust quadratic optimal control problems with restrictions, within a model predictive control (MPC) setup. Initially we present a brief introduction of the MPC algorithms, emphasizing the linear quadratic controller approach. Next the two algorithms of interest, using LMI optimization techniques, are presented. By using this technique the restrictions and uncertainties can be written in a computational way. Finally some simulations and comparisons between these algorithms, as well as with MPC techniques found in the current literature, are performed.
Cheng, Chun-Min. "Use of linear quadratic and quadratic programming methods in model-based process control /." Thesis, Connect to this title online; UW restricted, 1986. http://hdl.handle.net/1773/9814.
Castro, Marcelo Hirai. "Processo para obtenção de furos quadrados utilizando máquinas ferramentas CNC com ferramenta em rotação." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264536.
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
Made available in DSpace on 2018-08-21T02:13:50Z (GMT). No. of bitstreams: 1 Castro_MarceloHirai_M.pdf: 4008200 bytes, checksum: a0c71450e4b5c3ac934e22f6e3cc9f4b (MD5) Previous issue date: 2012
Resumo: A inovação é a chave para o diferencial da indústria no mercado competitivo atual. Fazer diferente, melhor e mais barato sempre agrega valor ao produto. Por outro lado, a resistência às mudanças faz parte do comportamento humano, seja na sociedade, ou na indústria. O objetivo principal deste trabalho é estudar a viabilidade de se fazer furos não cilíndricos com uma ferramenta em rotação utilizando máquinas-ferramenta CNC. Estes sempre foram obstáculos na indústria de fabricação pela dificuldade de obtenção. Sendo assim, o processo apresentado nesse trabalho busca usinar um furo quadrado com a mesma configuração de ferramentas e fixação de peças utilizadas para um furo cilíndrico, tão comum à indústria. Isso visa reduzir custos de fabricação e facilitar a obtenção de furos não cilíndricos com os recursos de equipamentos programáveis existentes no chão de fábrica. A partir de um modelo matemático, a máquina é programada para executar movimentos sincronizados entre a rotação e os deslocamentos do eixo da ferramenta. Diversas programações foram testadas em diferentes máquinas ferramenta CNC, com diferentes comandos, com e sem recursos de alta velocidade, com diferentes quantidades de pontos programados, interpolações lineares e circulares. A partir dos experimentos, foram analisadas as configurações das máquinas, a capacidade de execução do controlador numérico instalado, a velocidade desenvolvida pela máquina na operação e a geometria obtida dos furos quadrados. Os experimentos apontam que para executar o furo quadrado, os comandos devem ser capazes de controlar um eixo rotativo como eixo propriamente dito, além de sincronizarem mais três eixos lineares. O crítico para este tipo de operação é a velocidade desempenhada pela máquina, sendo o fator mais significativo, o tempo que o comando precisa para o processamento do bloco de programação, independentemente da ativação de recursos de alta velocidade, interpolações lineares ou circulares. Verificou-se também que quanto maior a quantidade de pontos para compor a trajetória do centro da ferramenta, melhor será a geometria obtida do furo. Sendo assim, as máquinas ferramenta CNC que estão em operação na indústria são capazes de realizar a furação não cilíndrica de forma muito próxima à furação cilíndrica quanto ao tempo de usinagem e ao sistema de fixação da ferramenta e da peça, sendo necessária uma programação sincronizada do eixo spindle presente em toda e qualquer máquina ferramenta
Abstract: The innovation is the key for the differential of the industry on the competitive market nowadays. To make different, better and cheaper always it is worth a lot to the product. By the other side, the resistance to changes makes part of the human behavior, in society, or in the industry. The main goal of this work is to study the feasibility to machining of non-cylindrical holes by a tool in rotation using CNC machine tools. That always has been offering obstacles to manufacturing industry by the difficulty of fabrication. Thus, the process presented on this work will machining a square hole with the same configuration of tools and systems for fixation of the parts, used for a cylindrical drilling, so common to industry. This intends to reduce the costs of fabrication and make easier to get non-cylindrical drilling using resources of the programmable equipment which are working at the shops. From a math model on, the machine is programmed to execute synchronized movements between the rotation and the displacements of the axis of the tool. Different programs were tested in different CNC machine tools, with different controllers, with and no resources for high speed, with different quantity of programmed points, with linear and circular interpolations. From the experiments, it was analyzed the configuration of the machines, the capacity for execution of the controller installed, the speed developed by machine at the operation and the geometry of the square holes. The experiments show that to machine a square hole, the controllers must be able to control a rotating axis itself, beyond to synchronize three axis. The critical to this kind of operation is the speed developed by the machine, being the most significant factor, the time the controller needs to process the block of programming, independently the activation of resources for high speed, linear or circular interpolations. It was verified than as larger the amount of points to compose the trajectory of the center of tool, better will be the geometry of the hole. Thus, the CNC machine tools in operation in the industry are able to machine the non-cylindrical drilling in a way very closely the cylindrical drilling as the time of machining and the fixing system of the tool and parts, requiring a programming that synchronizes the main spindle installed in any machine tool
Mestrado
Materiais e Processos de Fabricação
Mestre em Engenharia Mecânica
Aasa, Johan. "Linear-Quadratic Regulation of ComputerRoom Air Conditioners." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-71031.
Axehill, Daniel. "Integer quadratic programming for control and communcation /." Linköping : Department of Electrical Engineering, Linköping University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10642.
Patek, Stephen D. (Stephen David). "Robust H[infinity] control via quadratic stabilization." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12276.
On t.p., "[infinity]" appears subscript, as the mathematical symbol.
Includes bibliographical references (leaves 126-129).
by Stephen David Patek.
M.S.
Axehill, Daniel. "Integer Quadratic Programming for Control and Communication." Doctoral thesis, Linköpings universitet, Reglerteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10642.
This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the Linköping University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this material, you agree to all provisions of the copyright laws protecting it.
Книги з теми "Contrôle de quadrator":
Pham, Khanh D. Linear-Quadratic Controls in Risk-Averse Decision Making. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5079-5.
Dorato, P. Linear-quadratic control: An introduction. Englewood Cliffs, N.J: Prentice Hall, 1995.
Dorato, Peter. Linear-quadratic control: An introduction. Englewood Cliffs, N.J: Prentice Hall, 1995.
Sima, Vasile. Algorithms for linear-quadratic optimization. New York: M. Dekker, 1996.
Anderson, Brian D. O. Optimal control: Linear quadratic methods. Englewood Cliffs, N.J: Prentice Hall, 1990.
Tagaras, George. Economic acceptance sampling by variables with quadratic quality costs. Fontainebleau: INSEAD, 1992.
Kratz, Werner. Quadratic functionals in variational analysis and control theory. Berlin: Akademie Verlag, 1995.
Daiuto, B. J. The hyperbolic map and applications to the linear quadratic regulator. New York: Springer-Verlag, 1989.
Pham, Khanh D. Linear-Quadratic Controls in Risk-Averse Decision Making: Performance-Measure Statistics and Control Decision Optimization. New York, NY: Springer New York, 2013.
Altshuller, Dmitry. Frequency Domain Criteria for Absolute Stability: A Delay-integral-quadratic Constraints Approach. London: Springer London, 2013.
Частини книг з теми "Contrôle de quadrator":
Yong, Jiongmin, and Xun Yu Zhou. "Linear Quadratic Optimal Control Problems." In Stochastic Controls, 281–344. New York, NY: Springer New York, 1999. http://dx.doi.org/10.1007/978-1-4612-1466-3_6.
Curtain, Ruth, and Hans Zwart. "Linear Quadratic Optimal Control." In Introduction to Infinite-Dimensional Systems Theory, 385–478. New York, NY: Springer New York, 2020. http://dx.doi.org/10.1007/978-1-0716-0590-5_9.
Trentelman, H. L. "Linear Quadratic Optimal Control." In Encyclopedia of Systems and Control, 644–49. London: Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5058-9_201.
Tang, Shanjian. "Stochastic Linear-Quadratic Control." In Encyclopedia of Systems and Control, 1343–47. London: Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5058-9_228.
Trentelman, Harry. "Linear Quadratic Optimal Control." In Encyclopedia of Systems and Control, 1–8. London: Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-5102-9_201-3.
Tang, Dr Shanjian. "Stochastic Linear-Quadratic Control." In Encyclopedia of Systems and Control, 1–6. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-5102-9_228-1.
Boltyanski, Vladimir G., and Alexander S. Poznyak. "Linear Quadratic Optimal Control." In Systems & Control: Foundations & Applications, 71–118. Boston, MA: Birkhäuser Boston, 2012. http://dx.doi.org/10.1007/978-0-8176-8152-4_4.
Söderström, T. "Linear Quadratic Gaussian Control." In Discrete-time Stochastic Systems, 319–65. London: Springer London, 2002. http://dx.doi.org/10.1007/978-1-4471-0101-7_11.
Curtain, Ruth F., and Hans Zwart. "Linear Quadratic Optimal Control." In Texts in Applied Mathematics, 269–334. New York, NY: Springer New York, 1995. http://dx.doi.org/10.1007/978-1-4612-4224-6_6.
Gajić, Zoran, and Xuemin Shen. "Linear-Quadratic Control Problems." In Parallel Algorithms for Optimal Control of Large Scale Linear Systems, 15–59. London: Springer London, 1993. http://dx.doi.org/10.1007/978-1-4471-3219-6_2.
Тези доповідей конференцій з теми "Contrôle de quadrator":
Stellato, Bartolomeo, Goran Banjac, Paul Goulart, Alberto Bemporad, and Stephen Boyd. "OSQP: An Operator Splitting Solver for Quadratic Programs." In 2018 UKACC 12th International Conference on Control (CONTROL). IEEE, 2018. http://dx.doi.org/10.1109/control.2018.8516834.
Lee, Chong-Dao. "Decoding Quadratic Residue Codes Based on Bivariate Weak-Locator Polynomials." In 2018 13th APCA International Conference on Automatic Control and Soft Computing (CONTROLO). IEEE, 2018. http://dx.doi.org/10.1109/controlo.2018.8439726.
van der Geest, Robert, and Anders Rantzer. "Linear quadratic control under quadratic constraints." In 1997 European Control Conference (ECC). IEEE, 1997. http://dx.doi.org/10.23919/ecc.1997.7082632.
Hu, Tiejun, and Won-Jong Kim. "Modeling and Multivariable Control of a High Precision Multidimensional Positioner." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59536.
Bonnard, B., and H. Tebbikh. "Quadratic control systems." In 26th IEEE Conference on Decision and Control. IEEE, 1987. http://dx.doi.org/10.1109/cdc.1987.272729.
Borggaard, Jeff, and Lizette Zietsman. "The Quadratic-Quadratic Regulator Problem: Approximating feedback controls for quadratic-in-state nonlinear systems." In 2020 American Control Conference (ACC). IEEE, 2020. http://dx.doi.org/10.23919/acc45564.2020.9147286.
Delanaye, M., and J. A. Essers. "Finite Volume Scheme With Quadratic Reconstruction on Unstructured Adaptive Meshes Applied to Turbomachinery Flows." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-234.
Jovanovic, Mihailo R., and Fu Lin. "Sparse quadratic regulator." In 2013 European Control Conference (ECC). IEEE, 2013. http://dx.doi.org/10.23919/ecc.2013.6669833.
Hu, Kun, Qingxian Wu, Yikun Li, and Wenhui Chen. "Quadrator QFT Control Based on Model Reduction Method." In 2018 5th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS). IEEE, 2018. http://dx.doi.org/10.1109/iccss.2018.8572366.
Kokame, Hideki, and Takehiro Mori. "Relaxed Quadratic Stabilizability Criteria." In 1992 American Control Conference. IEEE, 1992. http://dx.doi.org/10.23919/acc.1992.4792671.
Звіти організацій з теми "Contrôle de quadrator":
Puta, Mircea, Marius Butur, Gheorghe Goldenthal, and Ionel Mos. Maxwell–Bloch Equations with a Quadratic Control About Ox1 Axis. GIQ, 2012. http://dx.doi.org/10.7546/giq-2-2001-280-286.
Puta, Mircea. Geometrical Aspects in the Rigid Body Dynamics with Three Quadratic Controls. GIQ, 2012. http://dx.doi.org/10.7546/giq-1-2000-209-224.
Bell, Kristine L. Adaptive Beampattern Control Via Linear and Quadratic Constraints for Circular Array STAP. Fort Belvoir, VA: Defense Technical Information Center, December 2002. http://dx.doi.org/10.21236/ada417462.
An Input Linearized Powertrain Model for the Optimal Control of Hybrid Electric Vehicles. SAE International, March 2022. http://dx.doi.org/10.4271/2022-01-0741.