Title :
Particle swarm optimization with turbulence (PSOT) applied to thermal-vacuum modelling
Author :
Araujo, Ernesto ; Araujo, Fernando P A ; Becceneri, Jose C. ; Velho, Haroldo F Campos
Author_Institution :
Integration & Testing Lab. (LIT) & Space Eng. & Technol. (ETE), Inst. Nac. de Pesquisas Espaciais (INPE), Sao Jose dos Campos, Brazil
Abstract :
Particle swarm optimization with turbulence (PSOT) is, in this paper, applied to find out fuzzy models to represent dynamic behavior of space systems that lie underneath the space qualification process. In optimization area, each minimal improvement in results may represents a maximal, precious meaning and PSOT improve the performance of the established particle swarm optimization (PSO) by introducing a slight variation, which simulates the action of an atmosphere turbulence to escape from local minima. This paper trades off the results of original PSO presented in a previous paper and PSOT both intertwined with Takagi-Sugeno (TS) fuzzy modeling dealing with experimental results of a thermal-vacuum system. Particle swarm optimization with turbulence has demonstrated to be a good alternative by taking into account the velocity of convergence to better solution and the total optimization time in generating dynamical models to the proposed system.
Keywords :
convergence; fuzzy set theory; particle swarm optimisation; space vehicles; thermal analysis; Takagi-Sugeno fuzzy modeling; atmosphere turbulence; convergence; dynamic behavior; particle swarm optimization; space qualification process; space system; thermal-vacuum modelling; Atmospheric modeling; Fuzzy logic; Fuzzy systems; Laboratories; Nonlinear dynamical systems; Particle swarm optimization; Qualifications; Space technology; System testing; Terrestrial atmosphere;
Conference_Titel :
Fuzzy Systems, 2009. FUZZ-IEEE 2009. IEEE International Conference on
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4244-3596-8
Electronic_ISBN :
1098-7584
DOI :
10.1109/FUZZY.2009.5277133