Results 251 to 260 of about 769,411 (297)

Transient tumbling chaos and damping identification for parametric pendulum

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2007
The aim of this study is to provide a simple, yet effective and generally applicable technique for determining damping for parametric pendula. The proposed model is more representative of system dynamics because the numerical results describe the qualitative features of experimentally exhibited transient tumbling chaotic motions well.
Horton, Bryan, Wiercigroch, Marian, Xu, Xu   +2 more
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Damping Nonlinearities and Transient Inputs

The Journal of the Acoustical Society of America, 1969
Damping is generally considered to be linear in the mathematical analysis of lumped parameter systems by their associated modal equations of motion. Considering all sources of damping, the damping force should be represented by both linear and nonlinear functions of the modal displacement and velocity and/or a hysteresis curve.
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Effects of rotational Inertia on power system damping and frequency transients

2015 54th IEEE Conference on Decision and Control (CDC), 2015
Rotational Inertia is an integral part of any electric power system. Due to the increased use of power electronics—both to connect Renewable Energy Sources (RES) and as drives for electric motors—inertia levels are generally reduced and become time dependent.
Theodor S. Borsche, Tao Liu 0012, David J. Hill 0001   +2 more
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Resetting Velocity Feedback: Reset Control for Improved Transient Damping

2022 European Control Conference (ECC), 2022
Active vibration control (AVC) is crucial for the structural integrity, precision, and speed of industrial machines. Despite advancements in nonlinear control techniques, most AVC techniques predominantly employ linear feedback control due to their simplicity and ability to be designed in the frequency domain.
Mathew Antony Mohan, Marcin B. Kaczmarek, S. Hassan HosseinNia   +2 more
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A Note on Hysteretic Damping of Transient Motions

1986
Abstract Hysteretic damping is usually defined by reference to sinusoidal motion and is strictly indefensible if it is used for non-sinusoidal motions. Elaborating on a paper which recently appeared in Strojnicky Casopis (On hysteretic damping of non-sinusoidal motion), this note suggests that this type of damping can be defined in such a way as to ...
R.E.D. BISHOP, W.G. PRICE
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Transient and Resonant Behavior of Electrically-Damped Microactuators

Micro-Electro-Mechanical Systems (MEMS), 2000
Abstract The transient and resonant behavior of electrostatic microactuators is investigated using the perturbation method and linear control theory. We examine an electrically-damped parallel-plate actuator and comb actuator in this paper.
Yijian Chen, Yashesh Shroff, William G. Oldham   +2 more
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Unconditional convergence and superconvergence analysis for the transient Stokes equations with damping

Applied Mathematics and Computation, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhenzhen Li, Minghao Li, Dongyang Shi
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Transient Growth of Damped Baroclinic Waves

Journal of the Atmospheric Sciences, 1985
A solution of the linear initial value problem for the model of Eady with the inclusion of Ekman damping is presented. This model exhibits large transient growth of perturbations for synoptic cyclone spatial scales and a realistic value of the vertical turbulent viscosity coefficient despite the fact that all normal modes are exponentially decaying ...
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Uncertainty Quantification for Damping in Transient Pressure Oscillations

Journal of Water Resources Planning and Management, 2019
AbstractThe uncertainty of a model to determine the damping of pressure head oscillations following a sudden valve closure in a simple piping system in a pressurized closed conduit is quantified us...
Sahad Khilqa, Mohamed Elkholy, Mohammed Al-Tofan, Juan M. Caicedo, M. Hanif Chaudhry   +4 more
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Damping in transmission systems under transient conditions

Proceedings of the Institution of Electrical Engineers, 1969
The general practice of neglecting the damping introduced by transmission networks during power-system transient-stability investigations is questioned, and a method is presented for calculating swing curves to include the influence of instantaneous frequency variations on the transmission network.
M.Y. Akhtar, S. Kaneff
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