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Minimum models of damped and limit cycle oscillations in a polymerization
(2010)
A simple polymerization scheme. {X→R1 Rj+X→Rj+1 (j=1,2,...,∞) Ri+Rj→polymer (i=1,2,...∞j=1,2,...,∞) has been studied introducing small modifications leading to a stable focus type steady state (with damped oscillations) ...
Minimum models of damped and limit cycle oscillations in a polymerization
(2010)
A simple polymerization scheme. {X?R1 Rj+X?Rj+1 (j=1,2,...,?) Ri+Rj?polymer (i=1,2,...?j=1,2,...,?) has been studied introducing small modifications leading to a stable focus type steady state (with damped oscillations) ...
A strategy to suppress limit cycle oscillations in helicopter ground resonance including landing gear nonlinearities
(2020-10-01)
Ground Resonance (GR) in helicopters is a potentially dynamic instability commonly involving the coalescence of the blade lag mode with the fuselage motion. Linear techniques can be employed to identify the unstable rotor ...
Control of Limit Cycle Oscillation in a Three Degrees of Freedom Airfoil Section Using Fuzzy Takagi-Sugeno Modeling
(Hindawi Publishing Corporation, 2014-01-01)
This work presents a strategy to control nonlinear responses of aeroelastic systems with control surface freeplay. The proposed methodology is developed for the three degrees of freedom typical section airfoil considering ...
Long-Lasting Oscillations in the Electro-Oxidation of Formic Acid on PtSn Intermetallic Surfaces
(Wiley-Blackwell, 2014-06-23)
Even when in contact with virtually infinite reservoirs, natural and manmade oscillators typically drift in phase space on a time-scale considerably slower than that of the intrinsic oscillator. A ubiquitous example is the ...
Limit cycles via higher order perturbations for some piecewise differential systems
(Elsevier B.V., 2018-05-15)
A classical perturbation problem is the polynomial perturbation of the harmonic oscillator, (x', y') = (-y + epsilon f(x, y, epsilon), x + epsilon g(x, y, epsilon)). In this paper we study the limit cycles that bifurcate ...
Characterization of nonlinear behavior of an airfoil under stall-induced pitching oscillations
(2016-06-23)
This work presents an investigation on the embedded dynamics of experimental aeroelastic signals of an airfoil under the influence of stall-induced oscillations. Helicopter blades or wind turbines are severely imposed to ...
Spatio-temporal dynamics and transition from asymptotic equilibrium to bounded oscillations in Chrysomya albiceps (Diptera, Calliphoridae)
(Instituto Oswaldo Cruz, Ministério da Saúde, 2001-07-01)
The sensitivity of parameters that govern the stability of population size in Chrysomya albiceps and describe its spatial dynamics was evaluated in this study. The dynamics was modeled using a density-dependent model of ...
Spatio-temporal dynamics and transition from asymptotic equilibrium to bounded oscillations in Chrysomya albiceps (Diptera, Calliphoridae)
(Instituto Oswaldo Cruz, Ministério da Saúde, 2001-07-01)
The sensitivity of parameters that govern the stability of population size in Chrysomya albiceps and describe its spatial dynamics was evaluated in this study. The dynamics was modeled using a density-dependent model of ...