Dissertations / Theses on the topic 'Active control'
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Cleave, Ra. "Active bandsaw control." Thesis, University of Canterbury. Mechanical Engineering, 2001. http://hdl.handle.net/10092/7189.
Full textIbrahim, Kamarul Asri. "Active statistical process control." Thesis, University of Newcastle Upon Tyne, 1989. http://hdl.handle.net/10443/407.
Full textMatheu, Enrique E. "Active and Semi-Active Control of Civil Structures under Seismic Excitation." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30310.
Full textPh. D.
Khairallah, Ousama Said. "Robotics Control using Active Disturbance Rejection Control." Cleveland State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1262832204.
Full textAbbaspour, Ali Reza. "Active Fault-Tolerant Control Design for Nonlinear Systems." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3917.
Full textJohnson, Martin Eric. "Active control of sound transmission." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243189.
Full textHuang, X. "Active control of aerodynamic instabilities." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237877.
Full textTideman, Erik. "Control System for Active Camouflage." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122282.
Full textCobelo, I. "Active control of distribution networks." Thesis, University of Manchester, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.685442.
Full textAoki, Yohko. "Strain transducers for active control." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/66297/.
Full textReynolds, Matthew. "Active control of viscoelastic metamaterials." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/377011/.
Full textTu, Yifeng. "Multiple Reference Active Noise Control." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36790.
Full textMaster of Science
Hanagan, Linda M. "Active control of floor vibrations." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164824/.
Full textAbouel-Nour, Aly. "Active control of vehicle suspension." Thesis, University of Leeds, 1989. http://etheses.whiterose.ac.uk/2552/.
Full textLi, Shi. "Modeling of active crack damage control and the active fatique damage control of adhesive joint." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-08222009-040330/.
Full textGopal, Vinod Kumar. "Active Stirling Engine." Thesis, University of Canterbury. Electrical and Computer Engineering, 2012. http://hdl.handle.net/10092/7306.
Full textHedborg, Mårten, and Patrik Grylin. "Active Noise Control of a Forest Machine Cabin." Thesis, Linköping University, Department of Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9065.
Full textToday, a high noise level is considered a problem in many working environments. The main reason is that it contributes to stress and fatigue. Traditional methods using passive noise control is only practicable for high frequencies. As a complement to passive noise control, active noise control (ANC) can be used to reduce low frequency noise. The main idea of ANC is to use destructive interference of waves to cancel disturbing noises.
The purpose of this thesis is to design and implement an ANC system in the driver's cabin of a Valmet 890 forest
machine. The engine boom is one of the most disturbing noises and therefore the main subjective for the ANC system to suppress.
The ANC system is implemented on a Texas Instrument DSP development starter kit. Different FxLMS algorithms are evaluated with feedback and feedforward configurations.
The results indicate that an ANC system significantly reduces the sound pressure level (SPL) in the cabin. Best performance of the evaluated systems is achieved for the feedforward FxLMS system. For a commonly used engine speed of 1500 rpm, the SPL is reduced with 17 dB. The results show fast enough convergence and global suppression of low frequency noise.
Szoke, Matthew. "Trailing edge noise control using active flow control methods." Thesis, University of Bristol, 2019. http://hdl.handle.net/1983/e45a9e22-3146-4467-90c4-01d3b6aebeb3.
Full textUlker, Fatma Demet. "Active Vibration Control Of Smart Structures." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1098409/index.pdf.
Full textcontrol strategies in order to suppress the free and forced vibrations of smart structures. The smart structures analyzed in this study were the smart beam and the smart ¯
n. They were aluminum passive structures with surface bonded PZT (Lead-Zirconate-Titanate) patches. The structures were considered in clamped-free con¯
guration. The ¯
rst part of this study focused on the identi¯
cation of nominal system models of the smart structures from the experimental data. For the experimentally identi¯
ed models the robust controllers were designed by using H1 and ¹
-synthesis strategies. In the second part, the controller implementation was carried out for the suppression of free and forced vibrations of the smart structures. Within the framework of this study, a Smart Structures Laboratory was established in the Aerospace Engineering Department of METU. The controller implementations were carried out by considering two di®
erent experimental set-ups. In the ¯
rst set-up the controller designs were based on the strain measurements. In the second approach, the displacement measurements, which were acquired through laser displacement sensor, were considered in the controller design. The ¯
rst two °
exural modes of the smart beam were successfully controlled by using H1 method. The vibrations of the ¯
rst two °
exural and ¯
rst torsional modes of the smart ¯
n were suppressed through the ¹
-synthesis. Satisfactory attenuation levels were achieved for both strain measurement and displacement measurement applications.
Forsgren, Fredrik. "Active Noise Control in Forest Machines." Thesis, Umeå universitet, Institutionen för fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-48661.
Full textSun, Xiao-Dong. "Active control of aircraft using spoilers." Thesis, Imperial College London, 1993. http://hdl.handle.net/10044/1/11324.
Full textMunn, Jacqueline Marie. "Virtual sensors for active noise control /." Title page, abstract and table of contents only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phm9668.pdf.
Full textChang, Min-Yung. "Active vibration control of composite structures." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-09162005-115021/.
Full textRybing, Peter. "Active Noise Control in Home Environment." Thesis, KTH, Reglerteknik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-109486.
Full textInyiama, Fidelis Chidozie. "Active control of hydrodynamic slug flow." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/7996.
Full textLi, Xiao Dong. "Active vibration control of vehicle suspension." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=67007.
Full textLe bruit de vibration structurelle produit par le contact des pneus du véhicule sur la surface de la route est un facteur important du bruit à l'intérieur du véhicule. Ce type de bruit à basse fréquence peut affecter sérieusement la concentration du conducteur et le confort des passagers. De manière à réduire ce bruit de vibration, un contrôle actif de vibration dans la suspension du véhicule est proposé, en contraste avec la réduction active de bruit acoustique. Puisqu'il est inévitable d'avoir des incertitudes dans le modèle de la dynamique de transmission de la vibration, des contrôleurs rétroactifs robustes sont considérés. Dans cette thèse, un contrôleur robuste H-infini et un contrôleur à synthèse mu sont conçus pour réduire la vibration en utilisant des actionneurs agissant directement sur la suspension. En premier lieu, des résultats de simulation obtenus sur une suspension d'une seule roue à l'Université de Sherbrooke démontrent une réduction significative de la vibration. Puis, une simulation des contrôleurs est effectuée sur le modèle de la voiture. Les résultats des tests en boucle fermée sont présentés et l'efficacité des contrôleurs rétroactifs robustes est discutée.
Li, Yong. "Active control of boundary layer instabilities." Thesis, Queen Mary, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413644.
Full textAshworth, Anthony Ian. "Active control of V/STOL aircraft." Thesis, Lancaster University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296678.
Full textHancock, Matthew. "Vehicle handling control using active differentials." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/8075.
Full textSansawatt, Thipnatee Punim. "Adaptive control for active distribution networks." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6268.
Full textTurner, Michael James. "Active control of moving coil loudspeakers." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531597.
Full textLane, Jeremy David. "Active Control of Noise Through Windows." Thesis, University of Canterbury. Mechanical Engineering dept, 2013. http://hdl.handle.net/10092/10523.
Full textHoulston, Paul Robert. "Active vibration control of rotating machines." Thesis, University of Nottingham, 2007. http://eprints.nottingham.ac.uk/10275/.
Full textNicholson, Guy Charles. "The active control of acoustic impedance." Thesis, University of Salford, 1994. http://usir.salford.ac.uk/14778/.
Full textHopper, David John Frederick. "Active control of V/STOL aircraft." Thesis, University of Salford, 1990. http://usir.salford.ac.uk/14698/.
Full textTruscott, A. J. "Control studies in active suspension systems." Thesis, University of Manchester, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282524.
Full textChan, T. M. "Active control of sound in ducts." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390327.
Full textTseng, Wen-Kung. "Sound minimisation for local active control." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342925.
Full textJenkins, Michael David. "Active control of periodic machinery vibrations." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480701.
Full textHillis, Andrew John. "Adaptive control of active engine mounts." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416822.
Full textWang, Lin. "Active control of fluid-borne noise." Thesis, University of Bath, 2008. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501639.
Full textMaldonado-Mercado, Julio Cesar. "Passive and active control of structures." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36654.
Full textIncludes bibliographical references (leaves 94-98).
by Julio Cesar Maldonado-Mercado.
M.S.
Kokossalakis, George 1976. "Neural network based active structural control." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/80945.
Full textTsai, Frank J. (Frank Jin-Fong) 1976. "Distributed active control for tension structures." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/81544.
Full textPinsley, Judith Ellen. "Active control of centrifugal-compressor surge." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/39016.
Full textAbdul, Muthalif Asan Gani. "Active control of high-frequency vibration." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612225.
Full textScruggs, Jeffrey. "Active, Regenerative Control of Civil Structures." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/34332.
Full textMaster of Science
Sun, Guohua. "Active Control of Impact Acoustic Noise." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1413542213.
Full textLau, M. W. S. "Active vibration control at machinery feet." Thesis, Aston University, 2000. http://publications.aston.ac.uk/15340/.
Full textPelegrinis, Michail T. "Local active control of reflected sound." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/7362/.
Full text