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 131 for “"structural optimization"”.
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Discrete Structural Optimization
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1978.
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Design approaches to structural optimization
… this thesis is to develop design approaches to structural optimization. In the example of three-dimensional grid structures, widely known as 'space frames', possible configurations are explored which maximize the load-bearing capacity of the system in relation to its weight. The study has been …
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Algorithm selection in structural optimization
Structural optimization is largely unused as a practical design tool, despite an extensive academic literature which demonstrates its potential to dramatically improve design processes and outcomes. Many factors inhibit optimization's application. Among them is the requirement for engineers-who …
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Seismic performance assessment for structural optimization
… the damage assessment tools needed to implement structural optimization with an estimate of lifetime seismic damage in the objective function. A parametric study of the procedure to predict damage from earthquake simulation results is presented. By varying the procedure and analyzing the effects …
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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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Shape and Structural Optimization of Flapping Wings
This dissertation presents shape and structural optimization studies on flapping wings for micro air vehicles. The design space of the optimization includes the wing planform and the structural properties that are relevant to the wing model being analyzed. The planform design is parameterized using …
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Structural optimization in steel structures, algorithms and applications
L'abstract è presente nell'allegato / the abstract is in the attachment
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A software system for large-scale structural optimization
… programming, the state-of-the-art of structural optimization, the spectacular performance of linear programming algorithms, and computer hardware developments which imply that applications of structural optimization might be used commonly in engineering design. Currently, there are few …
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Application of deterministic operations research for structural optimization
… application of operations research theories for structural optimization problems, while the discussion is restricted to deterministic system. The methodology employed follows the general methodology of operations research: mathematical models are utilized to represent real-world problems and …
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Cellular Automata for Structural Optimization on Recongfigurable Computers
Structural analysis and design optimization is important to a wide variety of disciplines. The current methods for these tasks require significant time and computing resources. Reconfigurable computers have shown the ability to speed up many applications, but are unable to handle efficiently the …
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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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Structural Optimization of Thin Walled Tubular Structure for Crashworthiness
… weight structures in the automotive design. Structural optimization in last two decades have been widely explored to improve existing designs or conceive new designs with better crashworthiness and reduced mass. Although many gradient based and heuristic methods for topology and topometry …
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Structural Optimization Using Geometric Programming and the Integrated Formulation
… of solving the "integrated" formulation of structural optimization is investigated. Structural behavior relationships, equilibrium and compatibility, are treated as explicit equality constraints and the problem solved as a large scale nonlinear mathematical programming problem. In contrast …
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Reliability-Based Structural Optimization Under Stochastic Time Varying Loads
A methodology for reliability-based structural optimization under time varying random loadings with emphasis on realistic modeling of the loadings and the effect of uncertainties of loadings on the design is developed. It includes studies on optimization problem formulation, loading modeling, …
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Application of a gradient-based algorithm to structural optimization
Optimization methods have shown to be efficient at improving structural design, but their use is limited in the engineering practice by the difficulty of adapting state-of-the-art algorithms to particular engineering problems. This study proposes the use of a robust gradient-based algorithm, whose …
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Structural Optimization of Regeneratively Cooled Rotating Detonation Rocket Engines
… to the detonative loads. In the present work a structural optimization protocol for regeneratively cooled RDREs is developed and then used to determine optimal cooling channel geometries which minimize thermomechanical stresses that might drive such failures. The analysis considers thermal …
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Computer-aided engineering methodology for structural optimization and control
Thesis (Civ.E.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
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Molecular Design and Structural Optimization of Nanocellulose-Based Functional Films
… present work is focused on molecular design and structural optimization of nanocellulose-based functional films. Since nanocellulose can be modulated and designed at the molecular level, tunable chemistry and functionalization of nanocellulose can offer much richer materials properties and more …
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Structural optimization: from continuum and ground structures to additive manufacturing
This work focuses on optimal structural systems, which can be modeled using discrete elements (e.g. slender columns and beams), continuum elements (e.g. walls or slabs), or combinations of these. Optimization problems become meaningful only after the objective function, or benchmark, that evaluates …
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High-fidelity aero-structural optimization framework for transonic aircraft design
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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