Results 11 to 20 of about 19,726,083 (227)
Mechanically controllable nonlinear dielectrics [PDF]
Science Advances, 2020 Control of nonlinear dielectrics can be realized by mechanical bending.
D. L. Ko +12 more
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Dynamic Design of a Quad-Stable Piezoelectric Energy Harvester via Bifurcation Theory
Sensors, 2022 The parameter tuning of a multi-stable energy harvester is crucial to enhancing harvesting efficiency. In this paper, the bifurcation theory is applied to quantitatively reveal the effects of structural parameters on the statics and dynamics of a quad ...
Qichang Zhang +4 more
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Frontiers in Materials, 2022 Wind energy is a typical foreseeable renewable energy source. This study constructs and optimizes a variable cross-section cantilever-based piezoelectric energy harvester for low-speed wind energy harvesting.
Kaiyuan Zhao +4 more
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Contraction Theory for Nonlinear Stability Analysis and Learning-based Control: A Tutorial Overview [PDF]
Annual Reviews in Control, 2021 Contraction theory is an analytical tool to study differential dynamics of a non-autonomous (i.e., time-varying) nonlinear system under a contraction metric defined with a uniformly positive definite matrix, the existence of which results in a necessary ...
Hiroyasu Tsukamoto +2 more
semanticscholar +1 more source
Parameter Analysis of an Intershaft Dual-Rotor with the Application of Squeeze Film Dampers
Shock and Vibration, 2021 The squeeze film damper is usually adopted in the rotor system to suppress the vibrating motion of the rotor system. In this work, not only are the physical parameters of the squeeze film damper analyzed but also the system parameters, like the number of
Huizheng Chen +4 more
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Correlation Analysis and Its Application on an Asymmetry Rotor Structure with Overhang
Applied Sciences, 2021 Overhung rotors are widely used in the industrial field. However, compared with normal structure rotors, the prediction and control of overhung rotors cannot achieve good performance.
Shun Zhong +3 more
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Phase-controlled nonlinear interferometry [PDF]
Applied Physics B Photophysics and Laser Chemistry, 1989 We have studied the influence of (relative) phases between fundamental and generated harmonic in a variety of nonlinear optical experiments. The concomitant large coherence length and the various methods of phase-control known from linear optics facilitate amplitude superposition and the generation of novel interference patterns, which may be used to ...
Lüpke, G., Marowsky, G., Steinhoff, R.
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Mathematics, 2022 The problem of constructing functional optimal observers (filters) for stochastic control systems with additive noises in discrete time are studied in this work.
Mikhail Kamenshchikov
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Mechanical Behaviors of Electrostatic Microbeams with Nonideal Supports
Shock and Vibration, 2020 Deviation of the actual system from the ideal supporting conditions caused by micromachining errors and manufacturing defects or the requirement of innovative design and optimization of microelectromechanical systems (MEMS) make the nonideal boundary in ...
Yunxia Chang +3 more
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Bifurcation Control of an Electrostatically-Actuated MEMS Actuator with Time-Delay Feedback
Micromachines, 2016 The parametric excitation system consisting of a flexible beam and shuttle mass widely exists in microelectromechanical systems (MEMS), which can exhibit rich nonlinear dynamic behaviors.
Lei Li +3 more
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