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Showing 1 to 10 of 10 entries
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Modeling of an impact system with a drift.

Physical review. E, Statistical, nonlinear, and soft matter physics

Pavlovskaia E, Wiercigroch M, Grebogi C.
PMID: 11736071
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Nov;64(5):056224. doi: 10.1103/PhysRevE.64.056224. Epub 2001 Oct 25.

A physical model to examine impact oscillators has been developed and analyzed. The model accounts for the viscoelastic impacts and is capable to mimic the dynamics of a bounded progressive motion (a drift), which is important in practical applications....

Two-dimensional map for impact oscillator with drift.

Physical review. E, Statistical, nonlinear, and soft matter physics

Pavlovskaia E, Wiercigroch M, Grebogi C.
PMID: 15524606
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Sep;70(3):036201. doi: 10.1103/PhysRevE.70.036201. Epub 2004 Sep 08.

An impact oscillator with drift is considered. The model accounts for viscoelastic impacts and is capable of mimicking the dynamics of progressive motion, which is important in many applications. To simplify the analysis of this system, a transformation decoupling...

[Evaluation of informative value of laboratory tests and test complexes for the occupational diseases].

Klinicheskaia laboratornaia diagnostika

Pavlovskaia NA, Danilova NI.
PMID: 11840833
Klin Lab Diagn. 2001 Dec;(12):49-51.

The authors discuss the criteria for rational selection of laboratory parameters most informative for the diagnosis of occupational diseases. Such criteria as diagnostic significance, diagnostic specificity, diagnostic informative value according to Kulback (Igx), and diagnostic selectiveness ensure the optimal...

Analysis and control of the dynamical response of a higher order drifting oscillator.

Proceedings. Mathematical, physical, and engineering sciences

Liu Y, Páez Chávez J, Pavlovskaia E, Wiercigroch M.
PMID: 29507508
Proc Math Phys Eng Sci. 2018 Feb;474(2210):20170500. doi: 10.1098/rspa.2017.0500. Epub 2018 Feb 21.

This paper studies a position feedback control strategy for controlling a higher order drifting oscillator which could be used in modelling vibro-impact drilling. Special attention is given to two control issues, eliminating bistability and suppressing chaos, which may cause...

Experimental study of impact oscillator with one-sided elastic constraint.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

Ing J, Pavlovskaia E, Wiercigroch M, Banerjee S.
PMID: 17947209
Philos Trans A Math Phys Eng Sci. 2008 Mar 13;366(1866):679-704. doi: 10.1098/rsta.2007.2122.

In this paper, extensive experimental investigations of an impact oscillator with a one-sided elastic constraint are presented. Different bifurcation scenarios under varying the excitation frequency near grazing are shown for a number of values of the excitation amplitude. The...

Sustainability criteria: their indicators, control, and monitoring (with examples from the biofuel sector).

Environmental sciences Europe

Pavlovskaia E.
PMID: 27752415
Environ Sci Eur. 2014;26(1):17. doi: 10.1186/s12302-014-0017-2. Epub 2014 Jul 23.

BACKGROUND: The purpose of the article is to research and analyze the notion of sustainability criteria in their function of an emerging tool to promote and safeguard sustainable products and their sustainable production. The article addresses critical issues, which...

Piecewise linear approach to an archetypal oscillator for smooth and discontinuous dynamics.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

Cao Q, Wiercigroch M, Pavlovskaia EE, Thompson JM, Grebogi C.
PMID: 17698466
Philos Trans A Math Phys Eng Sci. 2008 Feb 28;366(1865):635-52. doi: 10.1098/rsta.2007.2115.

In a recent paper we examined a model of an arch bridge with viscous damping subjected to a sinusoidally varying central load. We showed how this yields a useful archetypal oscillator which can be used to study the transition...

Intermittent control of coexisting attractors.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

Liu Y, Wiercigroch M, Ing J, Pavlovskaia E.
PMID: 23690639
Philos Trans A Math Phys Eng Sci. 2013 May 20;371(1993):20120428. doi: 10.1098/rsta.2012.0428. Print 2013 Jun 28.

This paper proposes a new control method applicable for a class of non-autonomous dynamical systems that naturally exhibit coexisting attractors. The central idea is based on knowledge of a system's basins of attraction, with control actions being applied intermittently...

Archetypal oscillator for smooth and discontinuous dynamics.

Physical review. E, Statistical, nonlinear, and soft matter physics

Cao Q, Wiercigroch M, Pavlovskaia EE, Grebogi C, Thompson JM.
PMID: 17155164
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Oct;74(4):046218. doi: 10.1103/PhysRevE.74.046218. Epub 2006 Oct 30.

We propose an archetypal system to investigate transitions from smooth to discontinuous dynamics. In the smooth regime, the system bears significant similarities to the Duffing oscillator, exhibiting the standard dynamics governed by the hyperbolic structure associated with the stationary...

Invisible grazings and dangerous bifurcations in impacting systems: the problem of narrow-band chaos.

Physical review. E, Statistical, nonlinear, and soft matter physics

Banerjee S, Ing J, Pavlovskaia E, Wiercigroch M, Reddy RK.
PMID: 19392086
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Mar;79(3):037201. doi: 10.1103/PhysRevE.79.037201. Epub 2009 Mar 17.

We discovered a narrow band of chaos close to the grazing condition for a simple soft impact oscillator. The phenomenon was observed experimentally for a range of system parameters. Through numerical stability analysis, we argue that this abrupt onset...

Showing 1 to 10 of 10 entries