Results 1 to 10 of about 2,512 (192)

Parameter identification in a generalized time-harmonic Rayleigh damping model for elastography. [PDF]

PLoS ONE, 2014
The identifiability of the two damping components of a Generalized Rayleigh Damping model is investigated through analysis of the continuum equilibrium equations as well as a simple spring-mass system.
Elijah E W Van Houten
doaj   +2 more sources

Extended Rayleigh Damping Model [PDF]

Frontiers in Built Environment, 2016
In dynamic analysis, frequency domain analysis can be used if the entire structure is linear. However, time history analysis is generally used if nonlinear elements are present.
Naohiro Nakamura
doaj   +2 more sources

Application of extended Rayleigh damping model to 3D frame analysis

Japan Architectural Review, 2023
Rayleigh damping is commonly used in response history analysis (RHA) to provide an energy dissipation source, but the adaptation may be difficult if frequency independence damping is desired over a wide frequency range.
Yoshihiro Mogi, Naohiro Nakamura, Akira Ota   +2 more
exaly   +2 more sources

Computation of Rayleigh damping coefficient of a rectangular submerged floating tunnel (SFT)

SN Applied Sciences, 2020
The dynamic behaviors of the submerged floating tunnel, a buoyant structure of high slenderness, are a matter of concern since it is surrounded by the huge hazardous effects called hydrodynamic, seismic and functional action.

exaly   +2 more sources

Effect of the viscous damping on the seismic response of Low-rise RC frame building

Revista Facultad de Ingeniería Universidad de Antioquia, 2020
The equivalent viscous damping is a key parameter in the prediction of the maximum nonlinear response. Damping constitutes a major source of uncertainty in dynamic analysis. This paper studies the effect of using viscous damping, on the reduction of the
Fatima-Zohra Baba-Hamed, Luc Davenne
doaj   +4 more sources

Chaotic and dynamic vibration analysis of a time-delayed nonlinear mathieu oscillator via non-perturbative approach [PDF]

Scientific Reports
The study compares van der Pol and Rayleigh oscillators with time-delayed effects, providing insights into stability, bifurcations, and organization in nonlinear systems.
Galal M. Moatimid, T. S. Amer, Yasmeen M. Mohamed   +2 more
doaj   +2 more sources

Research on the Value of Rayleigh Damping Parameter in Explicit and Implicit Integrals for Dynamic Analysis of Large Structures

Buildings
Rayleigh damping is proportional to the combination of the structural mass matrix and stiffness matrix and is widely used in structural seismic analysis.
Jianbo Li
exaly   +3 more sources

Quantification of modeling uncertainty in the Rayleigh damping model

Earthquake Engineering and Structural Dynamics
AbstractUnderstanding and accurately characterizing energy dissipation mechanisms in civil structures during earthquakes is an important element of seismic assessment and design. The most commonly used model is attributed to Rayleigh. This paper proposes a systematic approach to quantify the uncertainty associated with Rayleigh's damping model ...
Ertugrul Taciroglu, Khachik Sargsyan, S Farid Ghahari   +2 more
exaly   +2 more sources

Investigation of the effects of value and modeling approach of natural damping on nonlinear responses of low rise moment-resisting steel frames [PDF]

Journal of Structural and Construction Engineering, 2021
Nonlinear time history analysis is recognized as the most appropriate tool for assessing the real behaviour of structures during seismic excitations. Validity rate of obtained results from this analysis significantly depends to the modeling, details and ...
Saman Rahat Dahmardeh, Mehrtash Motamedi, Armin Aziminejad   +2 more
doaj   +1 more source

Research on Influence of Damping on the Vibration Noise of Transformer

IEEE Access, 2022
To improve the transformer vibration analysis accuracy, a numerical vibration model of transformer, including the damping effect, is proposed in the paper.
Lihua Zhu, Jianying Hao, Lan Lu
doaj   +1 more source