Prediction and minimization of excessive distortions and residual stresses in compliant assembled structures

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dc.contributor.authorYoshizato, Anderson
dc.contributor.supervisorCrawford, Curran
dc.date.accessioned2020-05-27T06:16:33Z
dc.date.available2020-05-27T06:16:33Z
dc.date.copyright2020en_US
dc.date.issued2020-05-26
dc.degree.departmentDepartment of Mechanical Engineeringen_US
dc.degree.levelMaster of Applied Science M.A.Sc.en_US
dc.description.abstractThe procedure of joining flexible or nonrigid parts using applied loads is called compliant assembly, and it is widely used in automotive, aerospace, electronics, and appliance manufacturing. Uncontrolled assembly processes may produce geometric errors that can exceed design tolerances and induce an increment of elastic energy in the structure due to the accumulation of internal stresses. This condition might create unexpected deformations and residual stress distributions across the structure that compromise product functionality. This thesis presents a method based on nonlinear Finite Element Analysis (FEA), metamodelling, and optimization techniques to provide accurate and on-time shimming strategies to support the definition of optimum assembly strategies. An example of the method on a typical aerospace wing box structure is demonstrated in the present study. The delivered outputs intend to support the production line by anticipating the response of the structure under a specific assembly condition and presenting alternative assembly strategies that can be applied to address eventual predicted issues on product requirements.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/11776
dc.languageEnglisheng
dc.language.isoenen_US
dc.rightsAvailable to the World Wide Weben_US
dc.subjectCompliant Assemblyen_US
dc.subjectAssembly Simulationen_US
dc.subjectResidual Stress Assemblyen_US
dc.subjectDistortions Assemblyen_US
dc.subjectDeformation Assemblyen_US
dc.subjectDistortions Wingen_US
dc.subjectFinite Element Analysis Assemblyen_US
dc.subjectFEA Assemblyen_US
dc.subjectFEM Assemblyen_US
dc.subjectAssembled Structuresen_US
dc.subjectAssembly Optimizationen_US
dc.subjectAssembly Metamodellingen_US
dc.subjectAssembly Surrogate Modelen_US
dc.subjectShimming Assemblyen_US
dc.subjectShims Assemblyen_US
dc.subjectSimulation of Manufacturing Processen_US
dc.subjectTolerance allocationen_US
dc.subjectTolerance Analysisen_US
dc.titlePrediction and minimization of excessive distortions and residual stresses in compliant assembled structuresen_US
dc.typeThesisen_US

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