Analiza dwóch zawieszenia pojazdów etap kolei w oparciu o metodę OMA / Analysis of two stage suspension railway vehicles based on OMA method (original) (raw)

GEMI Research Group has developed a series of research projects aimed at innovation, science and technology on the field of railway systems. The knowledge acquired on trains is the basis on which EAFIT University develops research projects, aimed at transport companies and financed by the Administrative Department of Science, Technology and Innovation of the Republic of Colombia. It is in this direction that this work presents the results of the research process focused on the methodology developed for Operation Modal Analysis (OMA) applied to railway systems. The work is structured under the follow themes: (i) methodological proposal, (ii) evaluation criteria of the system, (iii) Experimental Modal Analysis (EMA), (iv) development of numerical models in multi-body theory, (v) validation of the numerical models, (vi) OMA application using Last-Square Complex Exponential method (LSCE), and (vii) presentation of a case study. The work studies the dynamical performance of a railway veh...