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 427 for “"Design method"”.
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An Inverse Design Method for Supersonic Airfoils
<p>Airfoil design is one of the most important aspects of aircraft design. Slight changes in airfoil geometry can lead to significant changes in a wide variety of aircraft performance metrics. Inverse design methods offer an efficient alternative to standard direct methods. The key to this design …
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Design method for centrifugal compressor and centripetal turbine impellers
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1957.
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A design method for cross-disciplinary coordination and innovation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Improved Design Method for Cambered Stepped Hulls with High Deadrise
Eugene Clement created a design method for swept-back cambered step hulls with deadrise. The cambered step is designed to carry 90% of the planing vessels weight with the remaining 10% being support by a stern mounted hydrofoil. The method requires multiple design iterations in order to achieve an …
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Implementation Of A Mechanistic- Empirical Pavement Design Method For Uruguayan Roadways
Mechanistic-Empirical (M-E) methods are the cornerstone of current pavement engineering practice because of their enhanced predicting capabilities. Such predicting power demands richer input data, computational power, and calibration of the empirical components against distress measurements in the …
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Towards an activity-oriented design method for HCI research and practice
During the last two decades, designing for usability has been the focus of attention when developing computer systems. However, the dynamic nature of human use of computer systems has meant that designing for <i>'usefulness'</i> or <i>'fitness for purpose'</i> is increasingly becoming the primary …
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A design method for specifying power sources for hybrid power systems
… and the performance of these systems. A novel method of specifying the power sources in bespoke hybrid power systems are presented. A custom software tool aimed at evaluating how different hardware configurations and output duty cycles affect the performance of a hybrid power system is then …
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A recursive design method for heat exchanger networks / by Yikai Ren.
A novel and reliable method for heat exchanger network synthesis is proposed.The prime objective has been the elimination or reduction of drawbacks inherent in both evolutionary methods and mathematical programming methods while retaining the adevantages of both methods.
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A Hybrid Inverse Design Method for Complex Aerodynamic and Hydrodynamic Geometries
… The final two examples demonstrate how the method can be applied to the design of geometries consisting of several components. The method was able to produce the desired aerodynamic and geometric characteristics for all the example cases. It was also able to complete each design stage in …
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A Long-Life Regime Probability-Based Fatigue Design Method for Weldments
A probability-based fatigue design methodology for crack initiation and early growth is presented which estimates the average fatigue strength of weldments and its uncertainty using a Monte Carlo simulation. The underlying analytical model considers several different kinds of fatigue variables: …
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Optimization of plane frames by modification of fully stressed design method
… mode. Each local minimum represents the optimal design for a particular mode of behavior of the structure which is a design with an efficient distribution of the material in the structure. The local minimum that represents an optimal design for a particular mode of behavior in a structure can be …
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Design method of a modular electronic printed circuit board testing system
… causes of failure, and use system engineering methods to decide what course of action should be taken. A Tradespace analysis is used to help decompose some of the complexity into a visualization that simplifies the decision process. The Tradespace analysis suggests that more utility can be …
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A case study on an attribute-based design method selection framework
… or properties to identify, compare, and select methods for the design of aerospace systems. Growing product development cost trends for these complex systems have been alarming to the aerospace industry. To curb rising development costs by improving the product design actions that drive them, …
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A robust design method for impedance control of constrained dynamic systems
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.
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Parameterized Shape Adaptive Material: A New Design Method for Inclusive Sportswear
Conventional sportswear design does not take into account body size changes that many individuals experience (i.e. through pregnancy, menstruation, etc.). This study focuses on transforming multi-stable mechanisms into composite form to create shape adaptive wearable materials for periods of body …
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A two-dimensional design method for highly-loaded blades in turbomachines
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1983.
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A consistent direct-iterative inverse design method for the Euler equations
A new, consistent direct-iterative method is proposed for the solution of the aerodynamic inverse design problem. Direct-iterative methods couple analysis and shape modification methods to iteratively determine the geometry required to support a target surface pressure. The proposed method includes …
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Convergence characteristics of the fully stressed design method for plane frames
… how the convergence rate of a fully stressed design method using a stress-ratio algorithm may be affected by manipulating various parameters. The parameters studied are: (1) selection of a design variable, (2) relationships between the variables of moment of inertia, area, and section modulus, …
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OOCOSIM - an object-oriented co-design method for embedded hw/sw systems
… systems and the resulting problems in their design, indicate an urgent need for an improved methodology to develop electronic systems. This thesis presents an object-oriented design flow called OOCOSIM to address these needs. For the design-capture it provides a graphical notion called …
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