@InProceedings{TorresChiwCamp:2015:MuCoAl,
               author = "Torres, Reynier Hernandez and Chiwiacosky, Leonardo Dagnino and 
                         Campos Velho, Haroldo Fraga de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade do Vale do Rio dos Sinos (UNISINOS)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Multi-particle collision algorithm with Hooke-Jeeves for solving a 
                         structural damage detection problem",
            booktitle = "Proceedings...",
                 year = "2015",
                pages = "1--12",
         organization = "International Conference on Composite Science and Technology, 10. 
                         (ICCST)",
            publisher = "Instituto Superior T{\'e}cnico",
             keywords = "Inverse vibration problem, Damage identifitcation, Metaheuristic 
                         algorithm, MPCA: multi-particle collision algorithm, Hooke-Jeeves 
                         method.",
             abstract = "A structural damage detection problem is tackled using a recent 
                         metaheuristic algorithm (Multi-Particle Collision Algorithm MPCA) 
                         associated with a deterministic approach the Hooke-Jeeves 
                         approach. The inverse problem of damage identification is 
                         formulated as an optimization problem assuming the displacement 
                         time history as experimental data. The objective function is 
                         defined by the square difference between the measured displacement 
                         and the displacement computed by using the forward model. The 
                         proposed hybrid approach consists of the MPCA metaheuristic 
                         coupled with the local search method of Hooke-Jeeves. A parallel 
                         version of MPCA technique using Message Passing Interface (MPI) is 
                         implemented since it reduces the computation time. Three different 
                         structures were considered for testing the methodology: damped 
                         springmass system, truss, and beam structure models. Finite 
                         element method was used for structure modeling with a different 
                         number of degrees of freedom (DOF). Experimental data was created 
                         in silico (synthetic experimental data). Time-invariant damages 
                         were assumed to generate the synthetic displacement data. 
                         Experiments with noiseless and noisy data were carried out. Level 
                         of noise of two and five percent were considered. Good estimations 
                         of damage location and quantification have been achieved.",
  conference-location = "Lisboa, Portugal",
      conference-year = "2-4 Sept.",
                label = "lattes: 5142426481528206 3 TorresChiwCamp:2015:MuCoAl",
             language = "en",
           targetfile = "1_torres2.pdf",
                  url = "http://www.dem.ist.utl.pt/iccst10/files/ICCST10_Proceedings/pdf/WEB_PAPERS/ICCST10_Upload_195.pdf",
               volume = "1",
        urlaccessdate = "23 maio 2024"
}