Results 241 to 250 of about 5,427,805 (312)

Nonlinear stability and vibration of imperfect CNTs by Doublet mechanics

Applied Mathematics and Computation, 2020
This manuscript exploited a bottom to up modelling nano-mechanics theory to investigate the nonlinear stability and dynamic behaviors of perfect and imperfect carbon nanotubes (CNTs) in pre-buckling and post-buckling domains, for the first time.
M. A. Eltaher, N. Mohamed
semanticscholar   +1 more source

Stability in Nonlinear Programming

Operations Research, 1970
This paper establishes necessary and sufficient conditions for constraint set stability requiring neither convex constraint functions not convex constraint sets. These conditions then lead to a sufficiency result for the continuity of the optimal objective values as the right-hand side varies. Applications to quasiconvex functions are presented.
James P. Evans, Floyd J. Gould
openaire   +3 more sources

Optimization for Nonlinear Stability

Civil-Comp Proceedings, 1988
Abstract This paper is concerned with the optimal design of trusses to withstand nonlinear stability requirements. While basically a geometrically nonlinear problem, nonlinear stability accounts for large rotations and equilibrium in the deformed state in contrast to linear stability which results in a generalized eigenvalue problem and handles small
Robert Levy, Huei-Shiang Perng
openaire   +1 more source

Rates of Stability in Nonlinear Programming

Operations Research, 1976
We give conditions on a nonlinear programming problem for the set of feasible solutions to have stability on the order of a Lipschitz condition. These results then imply conditions for the optimal value of the objective function to satisfy a Lipschitz condition with respect to the right-hand side vector as well as for the set of ϵ-optimal solutions to
Michael H. Stern, Donald M. Topkis
openaire   +2 more sources

Couple stresses effect on instability and nonlinear stability in a double diffusive convection

Applied Mathematics and Computation, 2019
In this study, we have addressed the problem of double-diffusive convection in a reacting fluid with the effect of couple stresses. In this system, there are two competing effects which are the temperature gradation that leads to instability and a salt ...
A. Harfash, G. A. Meften
semanticscholar   +1 more source

Global nonlinear stability of bidispersive porous convection with throughflow and depth-dependent viscosity

The Physics of Fluids
The linear instability and the nonlinear stability analyses have been performed to examine the combined impact of a uniform vertical throughflow and a depth-dependent viscosity on bidispersive porous convection using the Darcy theory with a single ...
V. K. Tripathi, B. M. Shankar, Amit Mahajan, I. Shivakumara   +3 more
semanticscholar   +1 more source

Differential Stability in Nonlinear Programming

SIAM Journal on Control and Optimization, 1977
This paper consists of a study of stability and differential stability in nonconvex programming. For a program with equality and inequality constraints, upper and lower bounds are estimated for the potential directional derivatives of the perturbation function (or the extremal-value function).
Gauvin, Jacques, Tolle, Jon W.
openaire   +3 more sources

Stabilization of Beams with Nonlinear Feedback

SIAM Journal on Control and Optimization, 2002
The author studies a simplified form of the dynamic Euler-Bernoulli beam equation for coupled beams: \(y''+\partial^4y/\partial x=0\), where \(y''\) stands for \(\partial^2y/\partial t^2\), \(t>0\), \(x\in(0,a)\cup (a,1)\), with a coupling point at \(x=a\). It is simply supported at \(x=0\), with shear hinge condition at \(x=1\) in model \(\#1\), it is
openaire   +2 more sources

Stability of positive nonlinear systems

2017 22nd International Conference on Methods and Models in Automation and Robotics (MMAR), 2017
The stability of time-invariant positive nonlinear systems is addressed. Necessary conditions for the stability of positive time-invariant continuous-time and discrete-time nonlinear systems are established. It is shown that the positive nonlinear systems are asymptotically stable only if the corresponding positive linear systems are asymptotically ...
Tadeusz Kaczorek, Kamil Borawski
openaire   +2 more sources

Input-to-state stability for nonlinear systems with stochastic impulses

at - Automatisierungstechnik, 2020
In this study, the problem of input-to-state stability (ISS) is systematically investigated for nonlinear systems with stochastic impulses. First, the ISS problem is considered for systems, where impulsive strengths are assumed to be stochastic and ...
Yang Tang, Xiaotai Wu, Peng Shi, F. Qian
semanticscholar   +1 more source