Results 31 to 40 of about 131,913 (332)
Applied Sciences, 2022 The aim of this paper is to investigate the vibration suppression effect of a nonlinear energy sink (NES) on the wind-vortex-induced vibration of deep-water jacket pipes. Based on nonlinear dynamical theories, the coupled dynamic equation of a deep-water
Lianfeng Yang +4 more
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Nonlinear damping and quasi-linear modelling [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015 The mechanism of energy dissipation in mechanical systems is often nonlinear. Even though there may be other forms of nonlinearity in the dynamics, nonlinear damping is the dominant source of nonlinearity in a number of practical systems. The analysis of such systems is simplified by the fact that they show no jump or bifurcation behaviour,
Elliott, S.J. +2 more
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The Scientific World Journal, 2014 The simulation results for electromagnetic energy harvesters (EMEHs) under broad band stationary Gaussian random excitations indicate the importance of both a high transformation factor and a high mechanical quality factor to achieve favourable mean ...
Farid Khan +2 more
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Continuous dependence on initial data and high energy blowup time estimate for porous elastic system
Communications in Analysis and Mechanics, 2023 In this paper, we establish two conclusions about the continuous dependence on the initial data of the global solution to the initial boundary value problem of a porous elastic system for the linear damping case and the nonlinear damping case ...
Jiangbo Han , Runzhang Xu, Chao Yang
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Shock and Vibration, 2010 In this paper, nonlinear dynamics and chaos of electrostatically actuated MEMS resonators under two-frequency parametric and external excitations are investigated analytically and numerically.
Wen-Ming Zhang, Guang Meng, Ke-Xiang Wei
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Tunable nonlinear damping in parametric regime [PDF]
arXiv, 2022 Nonlinear damping plays a significant role in several area of physics and it is becoming increasingly important to understand its underlying mechanism. However, microscopic origin of nonlinear damping is still a debatable topic. Here, we probe and report nonlinear damping in a highly tunable MoS2 nano mechanical drum resonator using electrical homodyne
arxiv
Nonexistence of global solutions of wave equations with weak time-dependent damping and combined nonlinearity [PDF]
Nonlinear Analysis, RWA, 45 (2019), 83-96, 2018 In our previous two works, we studied the blow-up and lifespan estimates for damped wave equations with a power nonlinearity of the solution or its derivative, with scattering damping independently. In this work, we are devoted to establishing a similar result for a combined nonlinearity.
arxiv +1 more source
Nonlinear damping in a micromechanical oscillator
Nonlinear Dynamics, 2011 Nonlinear elastic effects play an important role in the dynamics of microelectromechanical systems (MEMS). Duffing oscillator is widely used as an archetypical model of mechanical resonators with nonlinear elastic behavior. In contrast, nonlinear dissipation effects in micromechanical oscillators are often overlooked. In this work, we consider a doubly
Oded Gottlieb +3 more
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On damping created by heterogeneous yielding in the numerical analysis of nonlinear reinforced concrete frame elements [PDF]
Computers & Structures, Elsevier, 2015, pp.2015.03.001, 2015 In the dynamic analysis of structural engineering systems, it is common practice to introduce damping models to reproduce experimentally observed features. These models, for instance Rayleigh damping, account for the damping sources in the system altogether and often lack physical basis.
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Nonlinear Oscillations of Magnetization in a Tangentially Magnetized Ferromagnetic Film Resonator
Известия высших учебных заведений России: Радиоэлектроника, 2020 Introduction. Resonators based on epitaxially grown single-crystal films of yttrium iron garnet are used in various applications of microwave electronics.
R. V. Haponchyk +2 more
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