Results 11 to 20 of about 769,411 (297)
Enhanced Transient Stabilization with Damping Assignment
IFAC-PapersOnLineThe paper proposes an analytical nonlinear control approach for enhancing the transient performance of lossy multi-machine power systems. The prominent feature of this approach lies in the inclusion of damping assignment, whereby the oscillation of the power system frequency is dampened out more effectively.
Gao, Jianli +2 more
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Damping System Designs using Nonlinear Frequency Analysis Approach [PDF]
, 2012 The main purpose of this thesis focuses on the investigation of the frequency domain analysis and design approaches for nonlinear damping systems. With the development of modern mechanical and civil engineering structures, the vibration control has ...
Guo, Pengfei
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AERODYNAMIC DAMPING PREDICTIONS DURING COMPRESSOR SURGE: A NUMERICAL COMPARISON BETWEEN A HALF AND FULL TRANSIENT APPROACH [PDF]
, 2022 The prediction of the aerodynamic damping during compressor surge is a challenging task, because the flow is continuously evolving along the four surge cycle phases: Pressurization (PR), Flow-Breakdown (FB), Reversed Flow (RF) and Regeneration (RG) and ...
Chenaux, Virginie +3 more
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Effects of Damping and Reynolds Number on Vortex-Induced Vibrations [PDF]
, 2007 Vortex-induced vibrations have been studied experimentally with emphasis on damping and Reynolds number effects. Our system was an elastically-mounted rigid circular cylinder, free to oscillate only transverse to the flow direction, with very low ...
Klamo, Joseph Thomas
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Low frequency damping of metal panels in ambient Air [PDF]
, 2008 Mathematical models of structural dynamics are widely used and applied in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not ...
Paul Cunningham (1251771) +8 more
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On the interaction of exponential non-viscous damping with symmetric nonlinearities [PDF]
, 2008 This paper studies the interaction between non-viscous damping and nonlinearities for nonlinear oscillators with reflection symmetry. The non-viscous damping function is an exponential damping model which adds a decaying memory property to the damping ...
Wagg, DJ +6 more
core +1 more source
Trudy Odesskogo Politehničeskogo Universiteta, 2022 The study of hydrodynamic instability in the safety systems of nuclear power plants is relevant. In the deterministic analysis of the safety of nuclear power plants based on accident simulation, it is necessary to take into account the possibility of ...
Вадим Анатольович Кондратюк +4 more
doaj +5 more sources
Transient Oscillation Suppression Method of Modular Multilevel DC Transformer
IEEE Access, 2020 The modular multilevel DC transformer (MMDCT) is more likely to suffer from transient oscillation, which is caused by insufficient damping of the equivalent RLC circuit with smaller arm resistance and submodule capacitance and may threaten the system ...
Dan Lyu +5 more
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Transient Resonance Passage of a Mistuned Bladed Disk with and without Underplatform Dampers
International Journal of Turbomachinery, Propulsion and Power, 2023 In this work, the vibration response of an academic free-standing turbine blisk is analyzed in regard to transient resonance passages. Measurement data are recorded using strain gauges and tip timing to evaluate the blades first bending mode both ...
Katharina Brinkmann +3 more
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Transient ULF pulsations: time dependence of magnetic fields observed at the ground [PDF]
Annales Geophysicae, 1995 The continuum oscillation of a latitudinal range of closed geomagnetic field lines or shells appears to be a basic feature of the magnetosphere. Such oscillations are observed at the ground, and have been termed transient ULF pulsations.
W. Allan
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