SILVA, A. A.; http://lattes.cnpq.br/8361717016612632; SILVA, Antonio Almeida.
Resumo:
In this work different mathematical formulations in time and frequency domain are studied
and developed to identify parameters in mechanical systems with emphasis in excitation forces
identification using least square, instrumental variables and sequencial estimation methods.
Digital simulations are processed in time and frequency domain to verify the
mathematical formulations developed and also doing analysis and discussions about the efficacy
of several estimation methods above described. Moreover are commented and discussed the
more relevant aspects about excitation signals properties and its relation of cause-effect in
phisical systems.
Finally, are presented results of forces identification in frequency domain, where the
validation of mathematical models are tested and moreover the efficiency of several estimators
In this case, the influence of point numbers in signals discretization, as well as the superposition
of noise effect in response measurements and its effects at values of identified forces are
investigated.