Browsing by Subject "Conceptual design"
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Item Automated conceptual design of manufacturing workcells in radioactive environments(2013-08) Williams, Joshua Murry; Landsberger, Sheldon; Pryor, Mitchell WayneThe design of manufacturing systems in hazardous environments is complex, requiring interdisciplinary knowledge to determine which components and operators (human or robotic) are feasible. When conceptualizing designs, some options may be overlooked or unknowingly infeasible due to the design engineers' lack of knowledge in a particular field or ineffective communication of requirements between disciplines. To alleviate many of these design issues, we develop a computational design tool to automate the synthesis of conceptual manufacturing system designs and optimization of preliminary layouts. To generate workcell concepts for manufacturing processes, we create a knowledge-based system (KBS) that performs functional modeling using a common language, a generic component database, and a rule set. The KBS produces high-level task plans for specific manufacturing processes and allocates needed material handling tasks between compatible human and/or robotic labor. We develop an extended pattern search (EPS) algorithm to optimize system layouts based on worker dose and cycle time minimization using the functions and sequencing of generated task plans. The KBS and EPS algorithm were applied to the design of glovebox processing systems at Los Alamos National Laboratory (LANL). Our computational design tool successfully generates design concepts with varied task allocation and processing sub-tasks and layouts with favorable manipulation workspaces. This work establishes a framework for automated conceptual design while providing designers with a beneficial tool for designing manufacturing systems in an interdisciplinary and highly constrained domain.Item Conceptual design : conceptual strategies in the applied arts(2014-05) Ramírez de Romo de Vivar, María Leonor; Wilcox, Gary B.Graphic Design by definition, is conceptual, its birth and production process depends on the conceptualization of problems and solutions. This report will explore what role does conceptual art, and conceptual strategies, play in the applied arts or visual communications. Just as in conceptual art, in graphic design “…the aesthetics of the design is less important than the “product” it signifies; its meaning is more important than its appearance.” Strong examples of conceptual strategies will be described through the work of graphic designers Paul Rand, Allan Fleming, and Robert Brownjohn, who experiment with “defamiliarizing the ordinary” and advertising campaigns that have used a conceptual approach.Item Conceptual level FEM based wing weight estimation(2010-08) Akay, Erdem; Chaput, Armand; Mear, Mark E.Weight and its estimation have a vital impact in the aircraft design process from the very early phases. When the conceptual design configuration of an aircraft has been created, it should ensure that the estimated weight is sufficiently accurate to meet the performance and cost requirements. The estimation of structural weight in early design stages is mostly performed using historical data; however, this approach does not provide reliable weight estimates for unconventional or unique designs or those that employ advanced materials. One solution for improving the accuracy of conceptual level weight estimation is to improve the fidelity of the methodology, geometry models, and loads through the use of Finite Element Methods (FEM). This thesis is intended to demonstrate an initial application of conceptual-level FEM based weight estimation to aircraft wing structure.