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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 272 for “"Optimization Method"”.
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A new optimization method for reservoir systems
… several decades and has generated many notable optimization methods. However, the transfer of optimization methods to general practice has proven to be challenging. This research introduces a new approach suitable for realistically large systems that (i) overcomes computational shortcomings of …
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A computerized optimization method for tolerance control
A systematic optimization method for generating the tolerance chart of a machining part and a computer program to implement this method have been developed. The developed method consists of four major components: the representation scheme for the machining sequence of the part, the algorithm for …
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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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Performance-based optimization method for structural topology and shape design
Continuum topology and shape optimization has received considerable attentions in recent years. However, no performance-based optimality criteria are used in existing continuum topology optimization methods to obtain the global optimum. In addition, existing methods mainly focus on theoretical …
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Evolutionary structural optimization method for systems with stiffness and displacement constraints
… presents the development of an evolutionary method for optimization of stmctures subject to displacement and stiffness constraints. Using an optimality criteria approach, the study provides a rigorous mathematical basis to the recently proposed evolutionary stmctural optimization (ESO) …
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Designing Power Converter-Based Energy Management Systems with a Hierarchical Optimization Method
This dissertation introduces a hierarchical optimization framework for power converter-based energy management systems, with a primary focus on weight minimization. Emphasizing modularity and scalability, the research systematically tackles the challenges in optimizing these systems, addressing …
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An adjoint-based optimization method using the solution of gray-box conservation laws
Many design applications can be formulated as an optimization constrained by conservation laws. Such optimization can be efficiently solved by the adjoint method, which computes the gradient of the objective to the design variables. Traditionally, the adjoint method has not been able to be …
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An Optimization Method for the Preliminary Design of Interplanetary Aerobraking Missions (Spacecraft, Orbit Mechanics)
The use of atmospheric drag to circularize spacecraft orbits, a concept referred to as aerobraking, can significantly increase the useful payload mass fraction for various types of missions. A procedure is devised which determines the optimal combination of aerobrake shielding area and initial …
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A new numerical optimization method based on Taylor series for challenging trajectory optimization problems
New methods to solve trajectory optimization problems are devised. The methods use direct transcription to convert the continuous optimal control problem into a parameter optimization problem that can be solved with non-linear programming. In direct transcription the system equations must be …
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A computer-based optimization method for plastic design of braced multi-story steel frames.
Massachusetts Institute of Technology. Dept. of Civil Engineering. Thesis. 1970. Ph.D.
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An Investigation Into a Hybrid Genetic Programming and Ant Colony Optimization Method for Credit Scoring
… based on Genetic Programming (GP) and Ant Colony Optimization (ACO) techniques for inducing data classification rules. The proposed hybrid approach aims to improve on the accuracy of data classification rules produced by the original GP technique, which uses randomly generated initial populations. …
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A Proper Orthogonal Decomposition-based inverse material parameter optimization method with applications to cardiac mechanics
… Decomposition with Interpolation (PODI) based method for inverse material parameter optimization in the field of cardiac mechanics. Material parameters are calibrated for a left ventricular and bi-ventricular human heart model during the diastolic filling phase. The calibration method combines …
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Benchmark characterization for reusable launch vehicle onboard trajectory generation using a Legendre psuedospectral [sic] optimization method
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.
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Optimal distribution of the relaxation behavior of linear viscoelastic materials by the particle swarm optimization method applied to the problem of a twisting shaft
… framework for the material distribution optimization problem of a linear viscoelastic material. The distribution of the relaxation behavior (coefficients of the Prony series expansion) across the system was obtained to achieve a target performance of the dynamic system by the particle …
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Solar Energy Generation Forecasting and Power Output Optimization of Utility Scale Solar Field
<p>The optimization of photovoltaic (PV) power generation system requires an accurate system performance model capable of validating the PV system optimization design. Currently, many commercial PV system modeling programs are available, but those programs are not able to model PV systems on a …
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A Structural Optimization Scripted Software System
This thesis introduces an optimization software system which supports two separate optimization approaches to solve structural optimization problems with small and large-scale finite element models. The approach for solving the structural optimization problems of small-scale finite element models …
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An Integrated Optimization Model for Distribution Center Location with Considerations of Population and Income
This Paper uses optimization method and decision making tool to find the best possible location of distribution centers. The original optimization method is modified to generate a new method which takes into consideration certain factors which were not present in the original formulation.Two levels …
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Development of ABAQUS-MATLAB Interface for Design Optimization using Hybrid Cellular Automata and Comparison with Bidirectional Evolutionary Structural Optimization
Topology Optimization is an optimization technique used to synthesize models without any preconceived shape. These structures are synthesized keeping in mind the minimum compliance problems. With the rapid improvement in advanced manufacturing technology and increased need for lightweight high …
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Improving classification performance of cancer microarray data using hybridization of binary grey wolf and particle swarm optimization
… have proposed hybridization of binary grey wolf Optimization and particle swarm optimization (BGWOPSO) method and we compared this hybrid optimization method with Particle Swarm Optimization (PSO) and Binary Grey Wolf Optimization (BGWO). We have used five significantly different classifier such …
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Optimization by Simulated Annealing: A Time-Complexity Analysis
… of a study of the heuristic random search optimization method called simulated annealing are given. Most of the results are concerned with the average amount of time simulated annealing takes to find an acceptable solution.
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