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 218 for “"Optimization program"”.
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Intelligent dynamic signal timing optimization program
… this research the development of a signal timing optimization model for oversaturated urban traffic networks with stochastic driver behavior and vehicle arrival headway is presented. The model is called Intelligent Dynamic Signal Timing Optimization Program or IDSTOP. IDSTOP is formulated as a …
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Development of a Variable Camber Compliant Aircraft Tail using Structural Optimization
… deals with the development of a structural optimization program to design a variable camber compliant tail. The program integrates ANSYS, aerodynamic thin airfoil theory and the Method of Moving Asymptotes to optimize the shape of an airfoil tail for maximum trailing edge deflection. An …
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Numerical method for solving fluid flow and heat transfer equations by design optimization
… fluid flow and heat transfer equations by design optimization is presented. The procedure uses an optimization program based on an exterior penalty function method to solve the partial differential equations. The intent of the investigation is to show that the method is feasible so that the entire …
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The margin for yield improvement for no. 1 common 5/4 red oak in a conventional rough mill
… same material was then processed with a computer optimization program designed to simulate a crosscut-first operation. Tests between the two methods, actual and optimized, showed that . current levels of cutting volume production were not able to be improved upon with optimization. Due to the …
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Manufacturing footprint strategy for product line expansion
… validated. By developing this model as a linear optimization program it can be used as a decision support tool to inform the operational strategy. Likely expansion scenarios and decision points (consolidation, acquisition, capital expenditures, etc.) are considered as decision variables in the …
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Design optimization of planar mechanisms
The purpose of this thesis is to create an optimization computer program capable of solving a variety of mechanism design problems. A general purpose computer program has been developed for design optimization. This program utilizes the sequential unconstrained minimization technique in which the …
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Simulation and optimization of spacecraft re-entry Trajectories
… to the task of spacecraft re-entry trajectory optimization. In this thesis, a parameter optimal control algorithm is implemented in MATLAB® to optimize a 2-D re-entry trajectory simulated via Simulink®. Simulation results are validated by comparison with data from the flight of Apollo 4. …
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Technical and environmental assessment of all-electric 180-passenger commercial aircraft
… technology. An all-electric aircraft design and optimization program, TASOPTe, has been developed from an existing version for conventionally-powered aircraft, TASOPT. Both programs are largely based on first-principles, enabling the design of aircraft with unusually short design ranges. A series …
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Optimal shape and motion planning for dynamic planar manipulation
… We frame this design problem as a nonlinear optimization program, where shape and motion are decision variables represented as splines. The task is represented as a series of constraints, along with a fitness metric, which force the solution to be compatible with the dynamics of frictional …
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A systems approach to the evaluation of Radio Frequency Identification (RFID) in the defense industry
… upon the others. Formulating the problem as a optimization program allows one to maximize the return on investment. A three-stage process is proposed for evaluating RFID opportunities in any complex enterprise. RFID swim lanes, a new process mapping tool, is used in order to understand the …
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Modeling and Integration of Demand Response and Demand Side Resources for Smart Grid Application in Distribution Systems
… demand response model into a microgrid market optimization. A microgrid network is a real world demonstration of smart grid that integrates and coordinates various demand side resources into its operation. For this reason, a microgrid has been chosen in this work so that it offers a broader …
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Resistance and wake prediction for early stage ship design
… resistance and propeller wake for use in an optimization program, having total propulsive efficiency as an objective function. There exist design tools to predict the total resistance and propeller wake, but none that provide adequate computational times for the preliminary design stage. The …
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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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An Examination of the Strengths and Weaknesses of Newton's Method for Nonlinear Optimization
… two of its major branches, linear and nonlinear optimization. While other methods are mentioned, the focus is on analytical methods used to solve nonlinear optimization problems. We briefly look at some of the most effective constrained methods for nonlinear optimization and then show how …
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Optimization of edging and trimming operations for red oak lumber
… for red oak lumber through computer-aided optimization. The main objective was to evaluate how lumber value recovered by actual hardwood operations compare with the maximum value obtainable through the optimization of edging and trimming. An optimization procedure was developed involving …
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Optimization of hydraulic networks using the box-complex optimization technique and the linear method of hydraulic analysis
… their practical application. A general computer program was developed to be used in the optimal design of hydraulic networks. The computer program can be used to optimize three basic system variables; input hydraulic head, pump head, and discrete pipe diameter sizes. Since the basic network …
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Optimization of high-speed CMOS circuits with analytical models for signal delay
Global optimization of high speed and high integration CMOS VLSI circuit is greatly in need in deep submicron regime with respect to signal delay, chip area and power dissipation. Accurate modeling of signal path delays is of particular importance in optimization. Although circuit level simulators …
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Inventory optimization in high volume aerospace supply chains
… inventory levels are calculated by a nonlinear optimization program. With this safety stock structure, aerospace firms can operate their supply chains with higher customer service rates and lower inventory levels. A methodology is also developed to help aerospace companies improve their existing …
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Standardizing and improving test wafer processes : inventory optimization and a days of inventory pull system
… realized cost savings, I developed a linear optimization program which distributed excess Test Wafer inventory to areas of need. Different re-allocation costs, initial material specifications, and forecasted consumption needs constrained the quantity and location for this redistribution.
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A three dimensional mathematical model of the human knee
… direct comparisons of results between several optimization methods proposed in the literature presents difficulties due to largely varying model formulation, input data, algorithms and other issues. The application presented here introduces a new optimization program which includes linear and …
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