| Journal: | Journal of the Brazilian Society of Mechanical Sciences |
| Database: | PERIÓDICA |
| System number: | 000312147 |
| ISSN: | 0100-7386 |
| Authors: | Botura, C.A1 Botura-Junior, G Carvalho-Junior, J.A Mesquita, L Ferreira, M.A2 |
| Institutions: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Guaratingueta, Sao Paulo. Brasil 2Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, Sao Paulo. Brasil |
| Year: | 2002 |
| Season: | May |
| Volumen: | 24 |
| Number: | 2 |
| Pages: | 134-138 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | 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 verified 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 sends a signal 180º out of phase |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de control, Ingeniería mecánica, Lógica difusa, Control activo, Combustión de pulsada, Tubos de Rijke |
| Keyword: | Engineering, Control engineering, Mechanical engineering, Fuzzy logic, Active control, Pulsed combustion, Rijke tubes |
| Full text: | Texto completo (Ver HTML) |
