Results 31 to 40 of about 4,626,700 (338)

Discovering governing equations from data by sparse identification of nonlinear dynamical systems [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2015
Significance Understanding dynamic constraints and balances in nature has facilitated rapid development of knowledge and enabled technology, including aircraft, combustion engines, satellites, and electrical power. This work develops a novel framework to
S. Brunton, J. Proctor, J. Kutz
semanticscholar   +1 more source

Nonlinear Hydrodynamic Stability

open access: yesPhysical Review Letters, 1998
3 pages, 1 eps ...
openaire   +2 more sources

Thermal stability analysis of eccentrically stiffened Sigmoid-FGM plate with metal–ceramic–metal layers based on FSDT

open access: yesCogent Engineering, 2016
This paper researches the thermal stability of eccentrically stiffened plates made of functionally graded materials (FGM) with metal–ceramic–metal layers subjected to thermal load. The equilibrium and compatibility equations for the plates are derived by
Pham Hong Cong, Nguyen Dinh Duc
doaj   +1 more source

Nonlinear stability of rotating patterns [PDF]

open access: yesDynamics of Partial Differential Equations, 2008
We consider 2D localized rotating patterns which solve a parabolic system of PDEs on the spatial domain R2. Under suitable assumptions, we prove nonlinear stability with asymptotic phase with respect to the norm in the Sobolev space H2. The stability result is obtained by a combination of energy and resolvent estimates, after the dynamics is decomposed
Beyn, Wolf-Jürgen, Lorenz, Jens
openaire   +2 more sources

An optimization approach for analysing nonlinear stability with transition to turbulence in fluids as an exemplar [PDF]

open access: yesReports on progress in physics. Physical Society, 2014
This article introduces and reviews recent work using a simple optimization technique for analysing the nonlinear stability of a state in a dynamical system.
R. Kerswell   +2 more
semanticscholar   +1 more source

Global stability of positive standard and fractional nonlinear feedback systems [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
The global stability of positive continuous-time standard and fractional order nonlinear feedback systems is investigated. New sufficient conditions for the global stability of these classes of positive nonlinear systems are established.
T. Kaczorek
doaj   +1 more source

Thermomechanical nonlinear stability of pressure-loaded CNT-reinforced composite doubly curved panels resting on elastic foundations

open access: yesNonlinear Engineering, 2019
Nonlinear stability of nanocomposite spherical and cylindrical panels reinforced by carbon nanotubes (CNTs), resting on elastic foundations and subjected to uniform external pressure in thermal environments is investigated in this paper.
Trang Le Thi Nhu, Tung Hoang Van
doaj   +1 more source

Nonlinear Stability of Asymptotic Suction [PDF]

open access: yesTransactions of the American Mathematical Society, 1984
The semigroup approach to the Navier-Stokes equation in halfspace is used to prove that the stability of the asymptotic suction velocity profile is determined by the eigenvalues of the classical Orr-Sommerfeld equation. The usual obstacle, namely, that the corresponding linear operator contains 0 0 in the spectrum is removed with the ...
openaire   +2 more sources

Stability of Nonlinear AR-GARCH Models [PDF]

open access: yesSSRN Electronic Journal, 2006
Abstract.  This article studies the stability of nonlinear autoregressive models with conditionally heteroskedastic errors. We consider a nonlinear autoregression of order p [AR(p)] with the conditional variance specified as a nonlinear first‐order generalized autoregressive conditional heteroskedasticity [GARCH(1,1)] model.
MEITZ, Mika, SAIKKONEN, Pentti
openaire   +8 more sources

Nonlinear stability of laboratory quasi-Keplerian flows. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2014
Experiments in a modified Taylor-Couette device, spanning Reynolds numbers of 10(5) to greater than 10(6), reveal the nonlinear stability of astrophysically relevant flows.
E. Edlund, H. Ji
semanticscholar   +1 more source

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