%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ET38CH
%@archivingpolicy denypublisher denyfinaldraft
%@issn 0100-7386
%@dissemination WEBSCI; PORTALCAPES.
%@usergroup administrator
%@usergroup jefferson
%3 simulation.htm
%X This work analyzes an active fuzzy logic control system in a Rijke type pulse combustor. During the system development, a study of the existing types of control for pulse combustion was carried out and a simulation model was implemented to be used with the package Matlab and Simulink. Blocks which were not available in the simulator library were developed. A fuzzy controller was developed and its membership functions and inference rules were established. The obtained simulation showed that fuzzy logic is viable in the control of combustion instabilities. The obtained results indicated that the control system responded to pulses in an efficient and desirable way. It was verífied that the system needed approximately 0.2 s to increase the tube internal pressure from 30 to 90 mbar, with an assumed total delay of 2 ms. The effects of delay variation were studied. Convergence was always obtained and general performance was not affected by the delay. The controller sends a pressure signal in phase with the Rijke tube internal pressure signal, through the speakers, when an increase the oscillations pressure amplitude is desired. On the other hand, when a decrease of the tube internal pressure amplitude is desired, the controller send ,a signal 180° out of phase.
%N 2
%T Simulation of active control using fuzzy logic applied to a pulse combustor
%@secondarytype PRE PI
%K COMBUSTAO, combustaão pulsante, fuzzy logic, pulse combustion, rijke tubes.
%@visibility shown
%@group LCP-INPE-MCT-BR
%@group LCP-INPE-MCT-BR
%@group LCP-INPE-MCT-BR
%@group
%@group LCP-INPE-MCT-BR
%@secondarykey INPE-12387-PRE/7691
%@copyholder SID/SCD
%2 sid.inpe.br/iris@1917/2005/05.11.11.15.21
%@affiliation
%@affiliation
%@affiliation
%@affiliation Universidade Estadual Paulista
%B Journal of the Brazilian Society of Mechanical Sciences and Engineering
%P 134-138
%4 sid.inpe.br/iris@1917/2005/05.11.11.15
%D 2002
%V 24
%A Botura, Cesar Augusto,
%A Botura Jr., Galdenoro,
%A Carvalho Jr., João Andrade,
%A Mesquita, Leonardo,
%A Ferreira, Marco Aurélio,
%@area COMB