Results 21 to 30 of about 858,761 (200)
A METHOD FOR DETERMINING RAYLEIGH DAMPING PARAMETERS OF COMPLEX FIELD
Civil Engineering Journal, 2019 Rayleigh damping model, which is still adopted by manygeneral finite element programs and widely used in analysis of engineering, leads to the inconformity of the calculating modal damping ratio with the actual modal ...
Huai-feng Wang, Ru-lin Zhang
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Alexandria Engineering Journal, 2020 The present paper introduces a theoretical study carried out to investigate the effect of shaft lateral misalignment on the dynamic characteristics of labyrinth seals under stationary conditions.
E. Saber, Khaled M. Abdou, R. Afify
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Damping coefficient calculation method for shore-side container cranes under the seismic conditions
Mechanics & Industry, 2023 Shore-side container cranes (SCC) are widely used in ship loading and unloading. However, the SCC is often damaged by the seismic wave shock. In seismic response analysis, the setting of damping coefficients has a large impact on the accuracy of the ...
Ye Fangping +4 more
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Research on optimization method of viscous dampers based on optimal additional damping ratio
Jianzhu JiegouTo reveal the influence law of viscous damper parameters on the supplemental damping ratio and realize the cost-effective seismic mitigation design，the optimization method of damping coefficients and damping exponents was investigated.
WANG Pengfei +5 more
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Numerical Estimation of Torsional Dynamic Coefficients of a Hydraulic Turbine
International Journal of Rotating Machinery, 2009 The rotordynamic behavior of a hydraulic turbine is influenced by fluid-rotor interactions at the turbine runner. In this paper computational fluid dynamics (CFDs) are used to numerically predict the torsional dynamic coefficients due to added polar ...
Martin Karlsson +2 more
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Problems of finite element model updating of aircraft based on ground vibration test results [PDF]
Космические аппараты и технологииThe paper addresses the issues occurring during updating of computational dynamic models of aircraft based on ground vibration test results. These include selection of modal testing methodology based on the analysis of ratio between forced monophase ...
Lakiza P. A. +4 more
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EngThis study develops empirical equations relating viscous damping ratios (ξ) and damper coefficients (c) in steel structures for seismic design applications.
Panagiotis Diamantis +2 more
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Polish Maritime Research, 2020 Simulation of the hydrodynamic performance of a floating current turbine in a combined wave and flow environment is important. In this paper, ANSYS-CFX software is used to analyse the hydrodynamic performance of a vertical-axis turbine with various ...
Zhang Wanchao +3 more
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Integrating damping and non-linearities in a vibration design process [PDF]
, 2013 Classical vibration design uses modes and transfer functions generated with the superposition principle to allow the verification of design objectives.
BALMES, Etienne
core
Nonlinear roll damping of a barge with and without liquid cargo in spherical tanks
Journal of Ocean Engineering and Science, 2016 Damping plays a significant role on the maximum amplitude of a vessel's roll motion, in particular near the resonant frequency. It is a common practice to predict roll damping using a linear radiation–diffraction code and add that to a linearized viscous
Wenhua Zhao +3 more
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