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Damage Identification in A Multi-Dof System Under Uncertainties Using Optimization Algorithms
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نویسنده
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Ribeiro Ricardo F. ,Ritto Thiago G. ,Campos Velho Haroldo F. ,Herskovits Jose
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منبع
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Journal Of Applied And Computational Mechanics - 2018 - دوره : 4 - شماره : 4 - صفحه:365 -374
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چکیده
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In this study, four optimization algorithms are applied to identify the damage in a multi-dof dynamical system composed of masses, springs, and dampers. the damage is introduced artificially by choosing a lower value for the stiffness. the applied algorithms include nelder-mead simplex, bfgs quasi-newton, interior point, and sequential quadratic programming - sqp. in addition, some different strategies to identify damage are applied. first, a deterministic analysis is performed to identify the damage; i.e, the values of the stiffnesses. then, random forces are considered, and finally, the stiffness values are considered uncertain and the different strategies are compared.
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کلیدواژه
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Damage Identification ,Optimization ,Uncertainties
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آدرس
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Universidade Federal Do Rio De Janeiro, Centro De Tecnologia, Department Of Mechanical Engineering, Brazil, Universidade Federal Do Rio De Janeiro, Centro De Tecnologia, Department Of Mechanical Engineering, Brazil, Instituto Nacional E Pesquisas Espaciais (Inpe), Centro De Tecnologias Especiais, Computing And Applied Mathematics Laboratory (Lac), Brazil
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پست الکترونیکی
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jose@optimize.ufrj.br
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Authors
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