Results 211 to 220 of about 15,838 (264)
Non-Destructive Characterization of Cultural Heritage Materials Using a Modified Acoustic Resonance Approach. [PDF]
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On the design of nonlinear damping with electromagnetic shunt damping
International Journal of Mechanical Sciences, 2020Abstract Traditional linear electromagnetic shunt damping (L-EMSD) has been studied deeply, however, the vibration isolation performance becomes worse with the increase of linear damping in the isolation region. To overcome the limitation of L-EMSD, this paper proposes two types of nonlinear electromagnetic shunt damping (N-EMSD) to develop nonlinear
Hongye Ma, Bo Yan, Wenguang Zheng
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Harmonic Oscillators with Nonlinear Damping
International Journal of Bifurcation and Chaos, 2017Dynamical systems with special properties are continually being proposed and studied. Many of these systems are variants of the simple harmonic oscillator with nonlinear damping. This paper characterizes these systems as a hierarchy of increasingly complicated equations with correspondingly interesting behavior, including coexisting attractors, chaos ...
Julien Clinton Sprott +1 more
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Nonlinear damping of zonal flows
Plasma Physics Reports, 2016The modulatonal instability theory for the generation of large-scale (zonal) modes by drift modes has been extended to the second order including the effects of finite amplitude zonal flows, ϕq. The nonlinear (second-order) sidebands are included in the perturbative expansion to derive the nonlinear equation for the evolution of ϕq.
O. Koshkarov +2 more
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Nonlinear active vibration damping
IEEE Transactions on Automatic Control, 1994Summary: A multivariable nonlinear controller is investigated for vibration suppression of flexible structures. The closed-loop gain matrix consists of a varying term added to a constant term. The varying term is proportional to the measured signal, providing rapid cancellation of large deflections and maintaining low noise sensitivity.
Rakel K. Kanestrom, Olav Egeland
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Nonlinear damping control for interconnected nonlinear systems
2015 54th IEEE Conference on Decision and Control (CDC), 2015In this paper, we propose enhanced nonlinear damping control for a class of singularly perturbed interconnected nonlinear systems (SPINSs). The proposed method transforms SPINS into a feedback connection of two subsystems. Then, nonlinear damping is implemented to improve the transient behavior of slow subsystem.
Donghoon Shin +3 more
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Attractor for a Strongly Damped Lattice System with Nonlinear Damping
2018 IEEE 15th International Conference on e-Business Engineering (ICEBE), 2018We prove the existence of a global attractor of a strongly damped lattice system with the damped force q(u_i) u_i+β(u_i) where the coupled operator is nonnegative definite symmetric and obtain an upper Hausdorff dimension of the global attractor, which keeps bounded for large damping.
Hongyan Li, Rui Zhang
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Transport Theory and Statistical Physics, 2009
In this article, we report the mathematical details of a systematic analysis of the nonlinear Landau damping of longitudinal electrostatic waves propagating in a collisionless plasma. Many of the main results have been reported previously; unfortunately, major parts of the essential mathematical developments had to be omitted for various reasons ...
C. Lancellotti, J. J. Dorning
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In this article, we report the mathematical details of a systematic analysis of the nonlinear Landau damping of longitudinal electrostatic waves propagating in a collisionless plasma. Many of the main results have been reported previously; unfortunately, major parts of the essential mathematical developments had to be omitted for various reasons ...
C. Lancellotti, J. J. Dorning
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