Tesis sobre el tema "Integrated Wing Design"
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Unger, Eric Robert. "Integrated aerodynamic-structural wing design optimization". Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09042008-063104/.
Texto completoStrauch, Gregory J. "Integrated multi-disciplinary design of a sailplane wing". Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45660.
Texto completoThe objective of this research is to investigate the techniques and payoffs of integrated aircraft design. Lifting line theory and beam theory are used for the analysis of the aerodynamics and the structures of a composite sailplane wing. The wing is described by 33 - 34 design variables which involve the planform geometry, the twist distribution, and thicknesses of the spar caps, spar webs, and the skin at various stations along the wing. The wing design must satisfy 30 â 31 aeroelastic, structural, aerodynamic, and performance constraints.
Two design procedures are investigated. The first, referred to as the iterative, sequential procedure, involves optimizing the aerodynamic design for maximum average cross-country speed at E1 constant structural weight, and then optimizing the the structural design of the resulting wing geometry for minimum weight. This value is then used in another aerodynamic optimization, and the process continues iteratively until the weight converges. The other procedure, the integrated one, simultaneously optimizes the aerodynamic and the structural design variables for either maximum average cross-country speed or minimum weight.
The integrated procedure was able to improve the value of the objective function obtained by the iterative procedure in all cases. This shows The objective of this research is to investigate the techniques and payoffs of integrated aircraft design. Lifting line theory and beam theory are used for the analysis of the aerodynamics and the structures of a composite sailplane wing. The wing is described by 33 - 34 design variables which involve the planform geometry, the twist distribution, and thicknesses of the spar caps, spar webs, and the skin at various stations along the wing. The wing design must satisfy 30 â 31 aeroelastic, structural, aerodynamic, and performance constraints. Two design procedures are investigated. The first, referred to as the iterative, sequential procedure, involves optimizing the aerodynamic design for maximum average cross-country speed at E1 constant structural weight, and then optimizing the the structural design of the resulting wing geometry for minimum weight. This value is then used in another aerodynamic optimization, and the process continues iteratively until the weight converges. The other procedure, the integrated one, simultaneously optimizes the aerodynamic and the structural design variables for either maximum average cross-country speed or minimum weight.
The integrated procedure was able to improve the value of the objective function obtained by the iterative procedure in all cases. This shows that definite benefits can be gained from taking advantage of aerodynamic/structural interactions during the design process.
Master of Science
Kao, Pi-Jen. "Efficient methods for integrated structural-aerodynamic wing optimum design". Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54211.
Texto completoPh. D.
MAININI, LAURA. "Multidisciplinary and multi-fidelity optimization environment for wing integrated design". Doctoral thesis, Politecnico di Torino, 2012. http://hdl.handle.net/11583/2500000.
Texto completoPolen, David M. "Integrated aerodynamic-structural design of a subsonic, forward- swept transport wing". Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/46059.
Texto completoThe introduction of composite materials and the ability to tailor these materials to improve aerodynamic and structural performance is having a distinct effect upon aircraft design. In order to optimize the efficiency of the design procedure, a design process which is more integrated than the traditional approach is required. Currently the utilization of such design procedures produces enormous computational costs. An ongoing effort to reduce these costs is the development of efficient methods for cross-disciplinary sensitivities and approximate optimization techniques.
The present research concentrates on investigating the integrated design optimization of a subsonic, forward-swept transport wing. A modular sensitivity approach for calculating the cross-sensitivity derivatives is employed. These derivatives are then used to guide the optimization process. The optimization process employed is an approximate technique due to the complexity of the analysis procedures. These optimization results are presented and the impact of the modular technique is discussed.
Master of Science
Unger, Eric Robert. "Computational aspects of the integrated multi-disciplinary design of a transport wing". Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42125.
Texto completoMaster of Science
Bortolotti, Pietro [Verfasser]. "Integrated Design of Wind Turbines / Pietro Bortolotti". München : Verlag Dr. Hut, 2018. http://d-nb.info/1166482456/34.
Texto completoZhang, Hui. "Wind turbine adaptive blade integrated design and analysis". Thesis, Northumbria University, 2013. http://nrl.northumbria.ac.uk/21439/.
Texto completoRogers, Mary C. M. "Control aspects of integrated design of wind turbines : a foundation". Thesis, University of Strathclyde, 1998. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21367.
Texto completoPerez, Damas Carlos Emilio. "Design of an airborne wind energy (AWE) research platform". Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118530.
Texto completoThesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 121-126).
Airborne wind energy (AWE) technologies have the potential to become a dominant source of clean electricity generation and help humanity reach many of the key sustainable development goals (SDGs) established by the United Nations as part of the 2030 Agenda for Sustainable Development. AWE systems eliminate the need for a tower, large blades and substantial foundations used in modern wind turbines and replace it with a wing (i.e. kite or glider aircraft) tethered to the ground. This technology can reach higher-altitude winds which is an untapped source of clean and highly abundant energy with the potential to power civilization 100 times over. As part of this work, an AWE research platform has been designed and developed based on a concept that emphasizes low-complexity, safety and low-cost. This research platform can be used to evaluate different sensor frameworks, airfoil/tether designs, control systems and optimal operational strategies for AWE systems operating under lift mode. A first-order techno-economic analysis was also performed to assess the cost and technical feasibility of developing a small-scale AWE system for distributed generation applications. In addition to estimating the approximate cost of the system, the analysis also determines the potential power generated by a specific AWE system design operating at a maximum elevation of 152 meters, to comply with existing regulation. The results of the techno-economic analysis suggest that small-scale AWE systems have the potential to produce electricity at a much lower cost than small-wind turbines of the same rated capacity.
by Carlos Emilio Perez Damas.
S.M. in Engineering and Management
S.M.
Li, Huaxia. "An integrated multibody dynamics computational framework for design optimization of wind turbine drivetrains considering wind load uncertainty". Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/2240.
Texto completoKalua, Amos. "Framework for Integrated Multi-Scale CFD Simulations in Architectural Design". Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/105013.
Texto completoDoctor of Philosophy
The use of natural ventilation strategies in building design has been identified as one viable pathway toward minimizing energy consumption in buildings. Natural ventilation can also reduce the prevalence of the Sick Building Syndrome (SBS) and enhance the productivity of building occupants. This research study sought to develop a framework that can improve the usage of Computational Fluid Dynamics (CFD) analyses in the architectural design process for purposes of enhancing the efficiency of natural ventilation strategies in buildings. CFD is a branch of computational physics that studies the behaviour of fluids as they move from one point to another. The usage of CFD analyses in architectural design requires the input of wind environment data such as direction and velocity. Presently, this data is obtained from a weather station and there is an assumption that this data remains the same even for a building site located at a considerable distance away from the weather station. This potentially compromises the accuracy of the CFD analyses as studies have shown that due to a number of factors such the urban built form, vegetation, terrain and others, the wind environment is bound to vary from one point to another. This study sought to develop a framework that quantifies this variation and provides a way for translating the wind data obtained from a weather station to data that more accurately characterizes a local building site. With this accurate site wind data, the CFD analyses can then provide more meaningful insights into the use of natural ventilation in the process of architectural design. This newly developed framework was deployed on a study site at Virginia Tech. The findings showed that the framework was able to demonstrate that the wind flow field varies from one place to another and it also provided a way to capture this variation, ultimately, generating a wind flow field characterization that was more representative of the local conditions.
Chui, Kwok-Lun. "Integrated wind tunnel based response analysis and structural optimization for serviceability design of tall buildings /". View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20CHUI.
Texto completoIncludes bibliographical references (leaves 187-194). Also available in electronic version. Access restricted to campus users.
Barrett, Ryan Timothy. "Investigation into Integrated Free-Form and Precomputational Approaches for Aerostructural Optimization of Wind Turbine Blades". BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6673.
Texto completoArany, Laszlo. "A methodology for simplified integrated design of offshore wind turbine foundations : theoretical approximations and closed form solutions for preliminary design". Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723470.
Texto completoQiao, Wei. "Integrated control of wind farms, facts devices and the power network using neural networks and adaptive critic designs". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/29716.
Texto completoCommittee Chair: Ronald G. Harley; Committee Member: David G. Taylor; Committee Member: Deepakraj M. Divan; Committee Member: Ganesh Kumar Venayagamoorthy; Committee Member: Thomas G. Habetler. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Tran, Duc-Hoan. "Conception Optimale Intégrée d'une chaîne éolienne "passive" : analyse de robustesse, validation expérimentale". Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0126/document.
Texto completoThis work deals with an Integrated Optimal Design (IOD) methodology of a full passive wind turbine system offering very good tradeoff in terms of cost, reliability and performance. Without active electronic device (power and MPPT control), efficiency of such architecture can only be obtained if all devices are mutually adapted: this can be achieved through an Integrated Optimal Design (IOD) approach. Wind energy extraction as whole losses are then optimized from a multiobjective genetic algorithm which aims at concurrently optimizing the energy efficiency while reducing the weight of the wind turbine system given a wind cycle. The whole system (turbine, generator, diode reducer, battery DC bus) has been modeled to obtain optimization results and finally to select a particular solution for an experimental validation. On the one hand, the obtained results put forward coherency between models and experience. On the other hand, given a reference wind cycle, it is possible to obtain optimal devices (generator – reducer – DC bus) whose energy efficiency is nearly equivalent to the ones obtained with active and more complex systems with MPPT control. Based on a sensitivity analysis of performance versus parametric uncertainties, one major contribution deals with a design methodology integrating robustness issues inside the optimization process
Yung-Hwa, Liu y 劉永華. "Integrated design on cone-derived waveriders with wing-body-tail-inlet-engine". Thesis, 1995. http://ndltd.ncl.edu.tw/handle/52896249681599622710.
Texto completo國立臺灣科技大學
機械工程研究所
83
The objective of this study is aimed to demonstrate how the propulsion unit is integrated and attached to the waverider- based vehicle. Two systematic design schemes for the airbreathing hypersonic vehicles, one for primarily cruise missions and the other for accelerator type missions, are proposed. These generic aerospace planes including a forebody, inlet, and hydrogen-fueled scramjet engine are developed by means of waverider concept. At first, by suitably choosing the polynomial and caret stream surfaces of the hypersonic flow past a perturbed cone with multi- directional curvature, the airframe, horizontal stabilizers, vertical fins, and inlet can be constructed. Next, a planar scramjet is designed in analytical way by combining a wedge, an isobaric combustor, and a minimum-length nozzle. In addition, the integrated design for the hypersonic vehicles is furnished by patching the propulsion unit on the waverider configuration with inlet and tail-fins. Furthermore, the optimum vehicles are determined for the on-design Mach numbers 8 and 10 with a dynamic pressure 51.3 kPa. Also, the corresponding aerodynamic performances, inlet mass flow rate, and thrust are calculated and expressed in a closed form. Thus, the complete hypersonic vehicle, which includes the wing-body, finlets, inlet, and propulsion unit, is furnished.
Lin, Chun-Yu y 林均諭. "Configuration Design of Wind Power Generators with Integrated Gear Boxes". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/52628322902388964974.
Texto completo國立成功大學
機械工程學系碩博士班
96
This work presents a systematic design methodology for the configuration design of wind power generators with integrated gear boxes. The Yan’s creative mechanism design methodology is first applied to analyze, generalize, and specialize existing designs of individual mechanism. The isomorphic structures are then integrated according to the constancy of the topological structure to obtain all possible integrated designs. By removing the existing designs, the new integrated designs are obtained. This approach is applied to the configuration designs of motors with integrated 3-link gear boxes, the wind power generators with integrated 3-link and 4-link 1 DOF gear boxes, as well as the wind power generators with integrated braking systems and 5-link 2 DOFs gear boxes, and 2, 17, and 3 new integrated designs are obtained, respectively. Furthermore, suitable configurations are selected for prototyping and the proposed integrated designs are proven to be feasible.
ZainalArifin y 吳宗達. "Configuration Design of Wind Power Generators with Integrated Automatic Transmission". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/72906450068918000557.
Texto completoWang, Ying-Ji y 王英吉. "Integrated Design of the Wind Power Collector in an Airship". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/04290513544659723317.
Texto completo國立屏東科技大學
車輛工程系所
100
The propose of this thesis is the investigation of a airship-liked wind collector with elbow inlet and back-forcing step outlet in high attitude. Using the elbow inlet improves the anti-torque problem, but the aerodynamic performance loss by the wall friction is existed. So the back-forcing step outlet is designed to augment the wind collection to overcome the aerodynamic performance loss where a low pressure zone is induced. This study is based on numerical simulation methods of using CFD computational fluid finite volume method for solving Navier-Stokes equations, to simulate the flow field of a hybrid wind power collector, because of there are more powerful and stability wind power in air than in ground. Therefore, this study carried out a concept designed device which is consist of a long endurance flight vehicle and hybrid wind power collector. The fight vehicle has a couple of canards in forward of the fuselage, and they can reduce a stronger swirling flow. To collect these swirling vortexes flow and upwind flow are the keys of this design. For more, modified wind collector and back-forcing step outlet are considered in the design for increasing the wind energy transfer. The CFD simulation used the finite volume incompressible algorithm, COUPLE, to calculate. There are many different AOA (0°~30°) of the canard and cutting height (0D~2.5D, D=diameter of a wind tube) of the outlet device to simulate, and comparison of the power transfer and pressure drop. The results show that the power efficiency of the modified model with anti-AOA of a triangle configuration canard and cutting plane outlet raises 3~5 times compared with the original design without cutting plane outlet.
Zhan, Fang-Bin y 詹芳彬. "Integrated Design of the Wind Collector Combined Closely with the Surrounding Environment". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/45845415496320710928.
Texto completo國立屏東科技大學
車輛工程系所
100
The primary concern of a wind turbine design is to obtain maximum power, and the key point is the wind collected. There are two problems exited from the past researches. One is the reversed pressure in high wind speed, and the other is cut speed. This thesis is carried out a design of the wind collector with two layers tube, and analyzes the optimal configuration of the wind collector to improve the wind energy transfer efficiency. This study is based on numerical simulation methods of using CFD computational fluid finite volume method for solving Navier-Stokes equations, to simulate the flow field of a series of wind collector. The CFD simulation used the finite volume incompressible algorithm, COUPLE, with realizable k-εor SST k-ω turbulent models to calculate. The wind turbine model is simplify a rotinal porous media, and mounted in the minimal cross section area of a tubal wind turbine devise. The results show that the performance of a wind collector with two layers cover is better than single layer cover, and it has better CP value in the design with the divergent nozzle. To achieve the small-sized wind turbine for the urbanization trend, this study designed a chimney type of the wind collector with guiding vans on the top of a building. There are five types covers with different height of vans, and five types of gaps with/ without cover, different kinds height/ diameter of a outlet, five types of outlet with cutting plane to simulate. Another wind collector with forward and backward wind turbine mounted on the mountain ridge is designed in a straight or s-duct tube to analyze the efficiency. The results show that the tubal wind collector with the by-pass channel in a s-duct tube has good CP value, and 2 times above efficiency while it is mounted on the mountain ridge.
Chen, Wei-Chieh y 陳韋傑. "The interactive installation design integrated byArduino microchip and PIR sensor technologies–take the Wind Spinning Top as example". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/76325656873975696205.
Texto completo世新大學
資訊管理學研究所(含碩專班)
100
My work is based on microcomputer clip - Arduino, combines with a concept from Wind Spinning Top, which is an ancient toy in China, via PIR Motion Sensor to active Wind Spinning Top system by detecting interaction with users. When visitors come close to this work, PIR sensor will catch people’s motion by infrared ray to start the fans, and then the interactive effect is working on. It creates a brandnew way to play ancient toy which can recall their childhood memory and interesting. In order to linkage my work with real world, we painting the Wind Spinning Top with colorful transparent papers to make it more fantsy. My work creates an imagination for visitors, and interactive experiences. My purpose is that my work could interpretate the impression of natural medium - wind. Finally, the questionnaire was developmented to collect visitors’ interactive experiences and cognitives. The result of testing the visitors’ questionnaires can be showed that they appreciate my work with positive manners.