Stability analysis and synthesis of stabilizing controls for a class of nonlinear mechanical systems
Sign Up to like & getrecommendations! Published in 2020 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-020-05709-0
Abstract: This paper is concerned with the problems of stability and stabilization for a class of nonlinear mechanical systems. It is assumed that considered systems are under the action of linear gyroscopic forces, nonlinear homogeneous positional… read more here.
Keywords: stabilizing controls; nonlinear mechanical; mechanical systems; class nonlinear ... See more keywords
Nonlinear mechanical properties of prestressed branched fibrous networks.
Sign Up to like & getrecommendations! Published in 2021 at "Biophysical journal"
DOI: 10.1016/j.bpj.2020.10.050
Abstract: Random fiber networks constitute the solid skeleton of many biological materials such as the cytoskeleton of cells and extracellular matrix of soft tissues. These random networks show unique mechanical properties such as nonlinear shear strain… read more here.
Keywords: branched fibrous; network; properties prestressed; nonlinear mechanical ... See more keywords
Study of microstructure effect on the nonlinear mechanical behavior and failure process of rock using an image-based-FDEM model
Sign Up to like & getrecommendations! Published in 2020 at "Computers and Geotechnics"
DOI: 10.1016/j.compgeo.2020.103480
Abstract: Abstract Rock microstructures, including the mineral heterogeneity and initial microcracks, not only affect its failure process but also influence its nonlinear mechanical behavior. However, in previous studies the rock microstructures especially the width of initial… read more here.
Keywords: mechanical behavior; nonlinear mechanical; process; model ... See more keywords
Nonlinear mechanical behaviour of microshells
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Engineering Science"
DOI: 10.1016/j.ijengsci.2018.02.009
Abstract: Abstract This study examines the nonlinear large-amplitude static and dynamic responses of a doubly curved shallow microshell in the framework of the modified couple stress (MCS) theory. To this end, the expressions for the classical… read more here.
Keywords: energy; behaviour microshells; nonlinear mechanical; static dynamic ... See more keywords
An improved adaptive fuzzy backstepping control for nonlinear mechanical systems with mismatched uncertainties
Sign Up to like & getrecommendations! Published in 2019 at "Automatika"
DOI: 10.1080/00051144.2018.1563357
Abstract: ABSTRACT When the nonlinear mechanical system has mismatched uncertainties, it is difficult to design control algorithm to achieve high precision trajectory tracking control. Traditional backstepping control is an effective control method for uncertain, mismatched nonlinear… read more here.
Keywords: control; nonlinear mechanical; backstepping control; improved adaptive ... See more keywords
Grey-box state-space identification of nonlinear mechanical vibrations
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Control"
DOI: 10.1080/00207179.2017.1308557
Abstract: ABSTRACT The present paper deals with the identification of nonlinear mechanical vibrations. A grey-box, or semi-physical, nonlinear state-space representation is introduced, expressing the nonlinear basis functions using a limited number of measured output variables. This… read more here.
Keywords: grey box; mechanical vibrations; state space; nonlinear mechanical ... See more keywords
Topology in Nonlinear Mechanical Systems.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.076802
Abstract: Many advancements have been made in the field of topological mechanics. The majority of the work, however, concerns the topological invariant in a linear theory. In this Letter, we present a generic prescription to define… read more here.
Keywords: mechanical systems; geometry; topology; nonlinear mechanical ... See more keywords
Exciting Efficient Oscillations in Nonlinear Mechanical Systems Through Eigenmanifold Stabilization
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2020.3048228
Abstract: Nonlinear modes are a well investigated concept in dynamical systems theory, extending the celebrated modal analysis of linear mechanical systems to nonlinear ones. This letter moves a first step in the direction of combining control… read more here.
Keywords: mechanical systems; systems eigenmanifold; efficient oscillations; oscillations nonlinear ... See more keywords
Nonlinear Biomechanical Characteristics of the Schneiderian Membrane: Experimental Study and Numerical Modeling
Sign Up to like & getrecommendations! Published in 2018 at "BioMed Research International"
DOI: 10.1155/2018/2829163
Abstract: Objective The aim of this study is to quantify the nonlinear mechanical behavior of the Schneiderian membrane. Methods Thirty cadaveric maxillary sinus membrane specimens were divided into the elongation testing group and the perforation testing… read more here.
Keywords: schneiderian membrane; modeling; study; nonlinear mechanical ... See more keywords