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Title:Computational synthesis of wheel-based mechanisms via shape and topology optimization
Author(s):Kelley, Patrick Louis
Advisor(s):James, Kai A
Department / Program:Aerospace Engineering
Discipline:Aerospace Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):topology optimization
wheel design
structural design
Abstract:Several wheel-barrow mechanisms were synthesized from first principles using a topology optimization method. First, a shape optimization problem was formulated in order to generate a wheel geometry that minimizes work done while rolling over terrain. Flat and sinusoidal ground profiles were considered, resulting in approximations to a circle and ellipse, respectively, as expected by an analytical solution. These optimal shapes then supplied a slate of contact points for a multi-load multi-layer mass minimization problem, subject to compliance constraints, which created a wheel-barrow system. Finally, the shape and topology regimes were optimized simultaneously, in an integrated multidisciplinary design optimization (MDO) framework. In all cases, analytically-derived sensitivities were supplied to the Method of Moving Asymptotes (MMA) optimizer routine.
Issue Date:2021-04-28
Rights Information:Copyright 2021 Patrick Kelley
Date Available in IDEALS:2021-09-17
Date Deposited:2021-05

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