Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
IDENTIFICATION OF STABILIZATION PARAMETERS OF REGIONAL AMAZONIAN BOATS
Submission Author:
Flávio José Aguiar Soares , AM
Co-Authors:
Flávio José Aguiar Soares, Álvaro de Azevedo Peres Neto, Cleonor Neves
Presenter: Álvaro de Azevedo Peres Neto
doi://10.26678/ABCM.COBEM2017.COB17-1442
Abstract
The goal of this article is to identify parametric models for the study of vessels stability in the amazon region. The transverse stabilization of vessels aims to raise the security and comfort vessels. However, active stabilization devices are sophisticated and expensive, which practically prevent its use on amazon vessels. The literature presents models in reduced scale using passive, low cost stabilization devices. This option is limited since real boats alter the mass distribution, inertia and fundamental frequency with variable loads flux on board at any harbor, which characterizes it as a variable mass system. This proposal compares identification models of ARX, ARMAX and N4SID models applied to dynamic tests to estimate the fundamental frequency of a model boat. Knowing the fundamental frequency of the prototype boat allows us to develop easy building low cost, passive-adaptive stabilization model. The ARMAX model got the best identification results, with less medium error between the identified model, the measured signal and best approximation to the fundamental frequency. The results of simulations and analysis of the identified models are presented.
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