Zobrazeno 1 - 10
of 298
pro vyhledávání: '"Maziar, S."'
Autor:
Mushtaq, Talha, Hemati, Maziar S.
Recent investigations have established the physical relevance of spatially-localized instability mechanisms in fluid dynamics and their potential for technological innovations in flow control. In this letter, we show that the mathematical problem of
Externí odkaz:
http://arxiv.org/abs/2411.05617
The recently introduced structured input-output analysis is a powerful method for capturing nonlinear phenomena associated with incompressible flows, and this paper extends that method to the compressible regime. The proposed method relies upon a ref
Externí odkaz:
http://arxiv.org/abs/2407.14986
Quadratic systems with lossless quadratic terms arise in many applications, including models of atmosphere and incompressible fluid flows. Such systems have a trapping region if all trajectories eventually converge to and stay within a bounded set. C
Externí odkaz:
http://arxiv.org/abs/2401.04787
Autor:
Heide, A. Leonid, Hemati, Maziar S.
Recent works have established the utility of sparsity-promoting norms for extracting spatially-localized instability mechanisms in fluid flows, with possible implications for flow control. However, these prior works have focused on linear dynamics of
Externí odkaz:
http://arxiv.org/abs/2311.09507
Computing a stabilizing static output-feedback (SOF) controller is an NP-hard problem, in general. Yet, these controllers have amassed popularity in recent years because of their practical use in feedback control applications, such as fluid flow cont
Externí odkaz:
http://arxiv.org/abs/2307.03330
In this note, we present an exact solution for the structured singular value (SSV) of rank-one complex matrices with repeated complex full-block uncertainty. A key step in the proof is the use of Von Neumman's trace inequality. Previous works provide
Externí odkaz:
http://arxiv.org/abs/2307.02069
This letter presents a framework for synthesizing a robust full-state feedback controller for systems with unknown nonlinearities. Our approach characterizes input-output behavior of the nonlinearities in terms of local norm bounds using available sa
Externí odkaz:
http://arxiv.org/abs/2212.03225
The structured singular value (SSV), or mu, is used to assess the robust stability and performance of an uncertain linear time-invariant system. Existing algorithms compute upper and lower bounds on the SSV for structured uncertainties that contain r
Externí odkaz:
http://arxiv.org/abs/2211.05929
This paper proposes new quadratic constraints (QCs) to bound a quadratic polynomial. Such QCs can be used in dissipation ineqaulities to analyze the stability and performance of nonlinear systems with quadratic vector fields. The proposed QCs utilize
Externí odkaz:
http://arxiv.org/abs/2209.03565
This letter describes a method for estimating regions of attraction and bounds on permissible perturbation amplitudes in nonlinear fluids systems. The proposed approach exploits quadratic constraints between the inputs and outputs of the nonlinearity
Externí odkaz:
http://arxiv.org/abs/2103.05426