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Lyapunovljeva analiza stabilnosti

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<strong>Lyapunovljeva</strong> <strong>analiza</strong> <strong>stabilnosti</strong>Stabilnost sustava 2. redaNelinearni prigušeni oscilator (2)Dinamički model nelinearnog prigušenog oscilatora (2)mẍ + f(x, ẋ) + g(x) = 0Energija nelinearnog prigušenog oscilatora (2)E(x, ẋ) = 1 ∫ x2 mẋ2 + g(ξ)dξ0Disipacija energije linearnog prigušenog oscilatoradE(x, ẋ)dt= mẋẍ + g(x)ẋ = (mẍ + g(x)) ẋ = −ẋf(x, ẋ)} {{ }−f(x,ẋ)Kriterij <strong>stabilnosti</strong>m > 0, ẋf(x, ẋ) > 0, xg(x) > 0Opća teorija sustava ( ) <strong>Lyapunovljeva</strong> <strong>analiza</strong> <strong>stabilnosti</strong> 16 / 42

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