{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/110590"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/110590","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Computational synthesis of wheel-based mechanisms via shape and topology optimization","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.","abstract_html":"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.","abstract_has_math":false,"creators":["Kelley, Patrick Louis"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Aerospace Engineering","degree_department":null,"school":null,"contributors":["James, Kai A"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-09-17T01:13:31Z","date_published":"2021-09-17T01:13:31Z","updated_at":"2026-07-22T22:24:52Z","subjects":["topology optimization","wheel design","structural design"],"languages":["en"],"rights":["Copyright 2021 Patrick Kelley"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/110590","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["James, Kai A"]},{"key":"dc:creator","label":"Author","values":["Kelley, Patrick Louis"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2021-09-17T01:13:31Z","2021-04-28","2021-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["topology optimization","wheel design","structural design"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2021 Patrick Kelley"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/110590"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["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.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-09-16 without embargo terms","The student, Patrick Kelley, accepted the attached license on 2021-04-27 at 17:23.","The student, Patrick Kelley, submitted this Thesis for approval on 2021-04-27 at 17:34.","This Thesis was approved for publication on 2021-04-28 at 14:52.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16592 on 2021-09-16 at 16:49:10","Made available in DSpace on 2021-09-17T01:13:31Z (GMT). No. of bitstreams: 2 KELLEY-THESIS-2021.pdf: 1398186 bytes, checksum: 9ba941faa03268e9c06aae89aa76ddb6 (MD5) LICENSE.txt: 4211 bytes, checksum: 8651601f60184c0a12d4c3ff8afe9bb1 (MD5) Previous issue date: 2021-04-28"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Computational synthesis of wheel-based mechanisms via shape and topology optimization"]}]}],"canonical_facts":{"dc:contributor":["James, Kai A"],"dc:creator":["Kelley, Patrick Louis"],"dc:date":["2021-09-17T01:13:31Z","2021-04-28","2021-05"],"dc:description":["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.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-09-16 without embargo terms","The student, Patrick Kelley, accepted the attached license on 2021-04-27 at 17:23.","The student, Patrick Kelley, submitted this Thesis for approval on 2021-04-27 at 17:34.","This Thesis was approved for publication on 2021-04-28 at 14:52.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16592 on 2021-09-16 at 16:49:10","Made available in DSpace on 2021-09-17T01:13:31Z (GMT). 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