Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 284 for “"Optimization process"”.
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System Analysis of a Numerical Well Design Optimization Process
… within integrated energy companies. The processes used for drilling engineering have not evolved at the pace of cutting-edge technology advancements over the last 20 years. The most significant shifts in classical well development are standardized design methods, advanced disciplinary …
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Development of Multidisciplinary Design Optimization Process for a Large Scale Hybrid Composite Wind Turbine Blade
<p>Development of a multidisciplinary design optimization (MDO) of a large scale hybrid composite wind turbine blade is performed. Multiple objectives are considered in the MDO process to maximize annual energy production and lifetime profit, minimize weight and power production rate. A wind …
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Algorithmic Modifications to a Multidisciplinary Design Optimization Model of Containerships
… ship should meet. The multidisciplinary design optimization model is a tool that combines an analysis and an optimization process and uses a measure of merit to obtain what it infers to be the best design. All that the designer has to know is the range of values of certain design variables that …
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A modified technique in RFID networking planning and optimization
… use of Genetic Algorithm (GA), Bacteria Foraging Optimization (BFO) and Particle Swarm Optimization (PSO) Algorithm. In this research, PSO algorithm was used in the optimization process as it was considered as a very useful, efficient and well known algorithm. However, there are no parameters …
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Integrated aerodynamic-structural design of a subsonic, forward- swept transport wing
… 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 …
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Design optimization of thermal paths in spacecraft systems
… on system resources, e.g., mass. Thermal design optimization has lagged other subsystems because the thermal subsystem is not thought to significantly drive performance or resource consumption. However, there are factors present in many spacecraft systems that invalidate this assumption. …
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Systems' optimization through simulation
The problem of systems' optimization through simulation was investigated. An external modular optimization procedure applicable to the simulation model of a multiple-variable, single-response, system whose overall performance is defined in terms of cost or profit in designed. The procedure consists …
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Optimal design of geodesically stiffened composite cylindrical shells
An optimization system based on the finite element code CSM Testbed and the optimization program ADS is described. The optimization system can be used to obtain minimum-weight designs of composite stiffened structures. Ply thicknesses, ply orientations, and stiffener heights can be used as design …
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Enzymatic treatment of pharmaceuticals and personal care products (PPCPs) in municipal wastewater
… laccasemediator system, is a novel biochemical process that has been shown to effectively treat some PPCPs. This study investigates the efficacy of the laccase-mediator system to treat PPCPs using a process that can be easily implemented at an existing wastewater treatment plant. Enzymatic …
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A Method of Topology Optimization for Curvature Continuous Designs
… many developments made in the field of topology optimization. Specifically, the structural dynamics community has been the leader of the engineering disciplines in using these methods to improve the designs of various structures, ranging from bridges to motor vehicle frames, as well as aerospace …
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Extended evolutionary structural optimization method for multi-storey buildings
This study extends the Evolutionary Structural Optimization (ESO) method for application to multi-storey buildings. The objective is to find the optimal topologies of multi-storey buildings subject to overall stiffness or displacement constraints. It emphasizes the derivation of a methodology to …
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Demand forecast for short life cycle products : Zara case study
… of a methodology to optimize the purchasing process for seasonal, short life-cycle articles. The methodology includes a process to develop a point forecast of demand of new articles, the top-down forecast at the color and size level and an optimization module to produce recommendations to …
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Structural Optimization of Bell Crank using Adaptive Response Surface Optimization
… contributes to the development of a structural optimization software system designed to support design optimization. The focus of this thesis work is on formulating strategies to obtain accurate solutions and enhance the efficiency of the optimization process, particularly when dealing with …
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Design Optimization Of Solid Rocket Motor Grains For Internal Ballistic Performance
… in this thesis deals with the application of optimization tools to the design of solid rocket motor grains per internal ballistic requirements. Research concentrated on the development of an optimization strategy capable of efficiently and consistently optimizing virtually an unlimited range …
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Force control in flapping foils using in-line motion and passive pitch
… either a fully actuated pitch motion or an optimization process. In the new experiment, the fluid forces naturally drive the pitch motion for most of the flapping cycle, until the foil reaches a maximum pitch angle, which is set with a mechanical stopper. The hydrodynamic forces are recorded …
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Evolutionary Algorithm For Large-Scale Optimization
In many real-world decision-making processes, a decision is made by solving an optimization problem. However, the performance of an optimization algorithm deteriorates significantly with the size of the problems, more complex relationships among the variables, and non-standard properties of the …
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Optimal distribution network reconfiguration using meta-heuristic algorithms
… systems topology is an NP-hard combinatorial optimization problem. It becomes more complex when time varying nature of loads in large-scale distribution systems is taken into account. In the second chapter of this dissertation, a systematic approach is proposed to tackle the computational …
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Computational aspects of the integrated multi-disciplinary design of a transport wing
… structural mechanics. Critical to this design process, is the ability to accurately and efficiently calculate the sensitivities of the involved quantities (such as drag and dynamic pressure) with respect to the design variables. These calculations had been addressed in past research, but it was …
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Shape optimization using feature-based CAD systems and adjoint methods
… of computer-aided design (CAD) models within an optimization framework is that there is no clear definition of how the change in CAD parameters effect the model’s performance in terms of optimizing for certain objective functions (for e.g. minimum pressure loss, minimum drag, maximum lift etc.). …
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