Дисертації з теми "Hydraulic control Mathematical models"
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Casoli, Paolo, Luca Riccò, Federico Campanini, Antonio Lettini, and Cesare Dolcin. "Hydraulic Hybrid Excavator: Layout Definition, Experimental Activity, Mathematical Model Validation and Fuel Consumption Evaluation." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200473.
Повний текст джерелаLiang, Pei-Ji. "Mathematical models of respiratory control in humans." Thesis, University of Oxford, 1996. http://ora.ox.ac.uk/objects/uuid:567195f2-f911-4188-a1c3-96192fd7b3ee.
Повний текст джерелаRotzoll, Kolja. "Hydraulic Parameter Estimation Using Aquifer Tests, Specific Capacity, Ocean Tides, and Wave Setup for Hawai'i Aquifers." Thesis, Water Resources Research Center, University of Hawaii at Manoa, 2007. http://hdl.handle.net/10125/22265.
Повний текст джерелаUSGS Pacific Island Water Science Center
Ritzi, Robert William. "The use of well response to natural forces in the estimation of hydraulic parameters." Diss., The University of Arizona, 1989. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1989_119_sip1_w.pdf&type=application/pdf.
Повний текст джерелаQiu, Jin 1962. "Production control and capacity configuration." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28646.
Повний текст джерелаJiao, Yue, and 焦月. "Mathematical models for control of probabilistic Boolean networks." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B41508634.
Повний текст джерелаTan, David Kim Hong. "Mathematical models of rate control for communication networks." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624531.
Повний текст джерелаJiao, Yue. "Mathematical models for control of probabilistic Boolean networks." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41508634.
Повний текст джерелаYakob, Laith. "Mathematical modelling of novel pest control strategies." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670034.
Повний текст джерелаWarren, Paul A. "Mathematical models of 3-D ocular mechanics and control." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312221.
Повний текст джерелаKröckel, Silke. "Stochastic production-inventory systems with significant setup times." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/24367.
Повний текст джерелаRoberts, Gwendolyn Rose 1963. "A comparison of multiple univariate and multivariate geometric moving average control charts." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276779.
Повний текст джерелаYoung, Andrew J. "Active control of vibration in stiffened structures." Title page, contents and abstract only, 1995. http://hdl.handle.net/2440/37722.
Повний текст джерелаThesis (Ph.D.)--Mechanical Engineering, 1995.
陳立梅 and Lap-mui Ann Chan. "Near optimal lot-sizing policies for multi-stage production/inventory systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1990. http://hub.hku.hk/bib/B31209129.
Повний текст джерелаMackenzie, Neil C. "The independent quadratic optimisation algorithm for the active control of noise and vibration /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phm15742.pdf.
Повний текст джерелаYan, Li, and 顏理. "On the traffic flow control system." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39431174.
Повний текст джерелаLeung, Ho-yin, and 梁浩賢. "Stochastic models for optimal control problems with applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42841781.
Повний текст джерелаChang, Min-Yung. "Active vibration control of composite structures." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-09162005-115021/.
Повний текст джерелаKadiri, Mostafa. "Shape οptimizatiοn and applicatiοns tο hydraulic structures : mathematical analysis and numerical apprοximatiοn". Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC214/document.
Повний текст джерелаWe are interested in the theoretical and numerical study of different flow models (shallow water system, multilayer, stationary and non stationary porous media) and their applications to the shape optimization of some hydraulic structures.We explore the well-posedness of the models and derive the adjoint equations related to each system.A penalty method is used to relax the incompressibility constraint for the velocity. We express the shape gradient of the cost function in terms of the velocity value as a state variable, the adjoint variables and the unit normal vector to the boundary of the domain.We propose a discrete finite element method to approximate the solution for the penalizedproblem and establish a priori estimates to prove the convergence of the approximate solution to the solution of the non perturbed problem. Error estimates for the velocity and the pressure are established.The optimization procedure is implemented using the continuous adjoint method and the finite element method
Cao, Min, and 曹敏. "Models for delivery and price equilibrium and statistical quality control in supply chains." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38576090.
Повний текст джерелаSun, Daning. "Structured policies for complex production and inventory models." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31002.
Повний текст джерелаBusiness, Sauder School of
Graduate
Terciyanli, Erman. "Alternative Mathematical Models For Revenue Management Problems." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610711/index.pdf.
Повний текст джерелаIyogun, Paul Omolewa. "Lower bounds for production/inventory problems by cost allocation." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27323.
Повний текст джерелаBusiness, Sauder School of
Graduate
Ozcaldiran, Kadri. "Control of descriptor systems." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/13531.
Повний текст джерелаSmerlas, Alex. "Robust multivariable control of helicopters : from mathematical models to flight tests." Thesis, University of Leicester, 1999. http://hdl.handle.net/2381/30174.
Повний текст джерелаHodge, Steven Eric. "Discrete-time closed-loop control of a hinged wavemaker." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26704.
Повний текст джерелаApplied Science, Faculty of
Mechanical Engineering, Department of
Graduate
Agi, Egemen. "Mathematical Modeling Of Gate Control Theory." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611468/index.pdf.
Повний текст джерелаMiller, Andrew J. "Polyhedral approaches to capacitated lot-sizing problems." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/24284.
Повний текст джерелаBhatnagar, Rohit. "A model for multi-plant coordination : implications for production planning." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28421.
Повний текст джерелаWe propose a model that jointly determines production and inventory decisions so that the total cost of holding inventory and overtime, at the two plants is minimized. Our model captures the interaction between the two plants and is preferable to the uncoordinated or the sequential approach which ignores this interaction. We consider the case with limited capacity and explicitly model setup times. Strategies based on Lagrangian relaxation and Lagrangian decomposition methodologies are proposed to solve the model.
Two main findings emerge from this research. First, our results indicate that coordination could lead to improved cost performance and enhanced profits for firms. Two parameters, the setup time to processing time ratio and the capacity utilization at the two plants played a significant role in determining the cost improvements. Managerial implications relating to implementation of the coordinated model are discussed. The second important finding of this research is that Lagrangian decomposition consistently outperforms Lagrangian relaxation in terms of achieving better deviation from the optimal solution, for this problem. A Linear Programming based technique for further enhancing the convergence between the upper and lower bounds is presented.
In the quest for improved performance, multi-plant coordination represents an important strategy for firms. The contribution of the current research is in modelling some of the salient issues of this problem and exploring promising methodological directions.
Cooper, William L. "Revenue management, auctions, and perishable inventories." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/25805.
Повний текст джерелаBleninger, Tobias. "Coupled 3D hydrodynamic models for submarine outfalls environmental hydraulic design and control of multiport diffusers." Karlsruhe Univ.-Verl. Karlsruhe, 2006. http://www.uvka.de/univerlag/volltexte/2007/238/.
Повний текст джерелаBleninger, Tobias. "Coupled 3D hydrodynamic models for submarine outfalls environmental hydraulic design and control of multiport diffusers /." Karlsruhe : Universitätsverlag, 2007. http://www.uvka.de/univerlag/volltexte/2007/238/.
Повний текст джерелаOrzechowska, J. E. "A mathematically reduced approach to predictive control of perishable inventory systems." Thesis, Coventry University, 2014. http://curve.coventry.ac.uk/open/items/df30d207-00e9-4fae-a86d-9fc2871f0539/1.
Повний текст джерела吳景濤 and King-to Ng. "A novel bit allocation buffer control algorithm for low bit-rate videocompression." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31221518.
Повний текст джерела朱國基 and Kwok-kei Chu. "Design and control of a six-legged mobile robot." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31225895.
Повний текст джерелаRazavi, H. Ali. "Identification and control of grinding processes for intermetalic [sic] compunds [sic]." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/18917.
Повний текст джерелаOleś, Katarzyna A. "Searching for the optimal control strategy of epidemics spreading on different types of networks." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21199.
Повний текст джерелаTchikanda, Serge William. "Modeling for high-speed high-strength precision optical fiber drawing." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/20051.
Повний текст джерела林志立 and Chi-lap Lam. "Analysis of inventory systems with demands met either from inventory or by special deliveries." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B3120868X.
Повний текст джерела黎錦強 and Kam-keung Lai. "Optimal (s,S) policies for inventory systems with a maximum issue quantity restriction." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B42574481.
Повний текст джерелаTai, Hoi-lun Allen, and 戴凱倫. "Quantitative analysis in monitoring and improvement of industrial systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B4394193X.
Повний текст джерелаZhang, Xiaohong. "Optimal feedback control for nonlinear discrete systems and applications to optimal control of nonlinear periodic ordinary differential equations." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40185.
Повний текст джерелаZhang, Yi. "Numerical modeling of shock wave propagation and contaminant fate and transport in open channel networks." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/20159.
Повний текст джерелаSood, Gaurav. "Simulation and control of a hip actuated robotic model for the study of human standing posture." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99794.
Повний текст джерелаThe first part of the thesis is devoted to recalling basic elements of the human balance system and to describe the balance strategies it uses to maintain an upright stance. Of the strategies presented, we consider the hip strategy which motivated the formulation of a hip actuated robot. An investigation into the control of nonlinear underactuated robots by linear controllers is done to verify the range and efficiency of the controlled system.
The second part of the thesis includes the investigation of two simplified models of the robot. Results using linear state feedback control are presented. The two models used are compared to clarify the use of one over the other.
We found that for linear controls, the size of the region of convergence decreased underactuated systems of increasing complexity. For our four degrees of freedom robot, the region of convergence is of 2.3 degrees for the actuated joints and of 1 degree for the unactuated joints. Our system is Lyapunov stable when the fully simplified model is assumed.
Thompson, Christopher David. "An analytical and experimental investigation of respiratory dynamics using P/D control and carbon dioxide feedback." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43059.
Повний текст джерелаMaster of Science
Vaezi, Masoud. "Modeling and control of hydraulic wind power transfer systems." Thesis, 2014. http://hdl.handle.net/1805/6172.
Повний текст джерелаHydraulic wind power transfer systems deliver the captured energy by the blades to the generators differently. In the conventional systems this task is carried out by a gearbox or an intermediate medium. New generation of wind power systems transfer the captured energy by means of high-pressure hydraulic fluids. A hydraulic pump is connected to the blades shaft at a high distance from the ground, in nacelle, to pressurize a hydraulic flow down to ground level equipment through hoses. Multiple wind turbines can also pressurize a flow sending to a single hose toward the generator. The pressurized flow carries a large amount of energy which will be transferred to the mechanical energy by a hydraulic motor. Finally, a generator is connected to the hydraulic motor to generate electrical power. This hydraulic system runs under two main disturbances, wind speed fluctuations and load variations. Intermittent nature of the wind applies a fluctuating torque on the hydraulic pump shaft. Also, variations of the consumed electrical power by the grid cause a considerable load disturbance on the system. This thesis studies the hydraulic wind power transfer systems. To get a better understanding, a mathematical model of the system is developed and studied utilizing the governing equations for every single hydraulic component in the system. The mathematical model embodies nonlinearities which are inherited from the hydraulic components such as check valves, proportional valves, pressure relief valves, etc. An experimental prototype of the hydraulic wind power transfer systems is designed and implemented to study the dynamic behavior and operation of the system. The provided nonlinear mathematical model is then validated by experimental result from the prototype. Moreover, this thesis develops a control system for the hydraulic wind power transfer systems. To maintain a fixed frequency electrical voltage by the system, the generator should remain at a constant rotational speed. The fluctuating wind speed from the upstream, and the load variations from the downstream apply considerable disturbances on the system. A controller is designed and implemented to regulate the flow in the proportional valve and as a consequence the generator maintains its constant speed compensating for load and wind turbine disturbances. The control system is applied to the mathematical model as well as the experimental prototype by utilizing MATLAB/Simulink and dSPACE 1104 fast prototyping hardware and the results are compared.
Fair, Kerry. "Developing a real time hydraulic model and a decision support tool for the operation of the Orange River." Thesis, 2002. http://hdl.handle.net/10413/4674.
Повний текст джерелаThesis (M.Sc.)-University of Natal, Durban, 2002.
Betts, Curt M. "Numerical techniques for coupled neutronic/thermal hydraulic nuclear reactor calculations." Thesis, 1994. http://hdl.handle.net/1957/36090.
Повний текст джерелаGraduation date: 1994
Paião, Ana Pedro Lemos. "Optimal control and mathematical models in epidemiology." Doctoral thesis, 2019. http://hdl.handle.net/10773/29401.
Повний текст джерелаNesta tese de doutoramento, provamos condições suficientes de otimalidade para problemas de controlo ótimo com tempos de atraso, transformando-os em problemas equivalentes sem tempos de atraso. Tal transformação é feita considerando uma técnica proposta por Guinn em 1976 e mais tarde promovida por Maurer e seus colaboradores. Deste modo, somos capazes de usar condições suficientes de otimalidade conhecidas para problemas de controlo ótimo sem tempos de atraso e voltar aos que consideram tempos de atraso. Propomos e estudamos vários modelos que traduzem a propagação da cólera e que consideram diferentes tipos de tratamento ou de medidas de prevenção. Problemas de controlo ótimo correspondentes são formulados e estudados. Tais análises teóricas são depois aplicadas a epidemias de cólera reais que ocorreram no Haiti e no Iémen.
Programa Doutoral em Matemática Aplicada
Kanchanasaratool, Narongsak. "Control of flexible structure." Phd thesis, 2003. http://hdl.handle.net/1885/148681.
Повний текст джерела