Results 91 to 100 of about 41,109 (223)

Nonlinear Earthquake Response Analysis Using Causal Hysteretic Damping and Extended Rayleigh Damping

Journal of Physics: Conference Series
Abstract In dynamic design, damping considerably influences the response of structures, so it must be set appropriately. Stiffness-proportional damping is generally used as an inherent damping model, but this model tends to overestimate the damping of higher-order modes. Certain models can evaluate the damping of higher-order modes, such
Naohiro Nakamura, Kunihiko Nabeshima, Yoshihiro Mogi, Akira Ota   +3 more
openaire   +1 more source

A Comparison of Ground Motion Intensity Measures for Estimating Collapse

Earthquake Spectra, Volume 42, Issue 2, May 2026.
This study examines the use of 15 different intensity measures (IMs) for estimating structural collapse using results from incremental dynamic analysis (IDA). IDA results from 54 numerical models were considered, including (i) 12 reinforced concrete (RC) frame structures, (ii) 16 RC wall–frame structures and (iii) 26 steel buckling‐restrained braced ...
Liam Pledger, Saiteja Sistla, Santiago Pujol, Reagan Chandramohan   +3 more
wiley   +1 more source

Rayleigh Damping Coefficients of Laminated Rubber Bearing

International Journal of Recent Technology and Engineering, 2019
In isolating the ground structure and the above ground structure from seismic loads, a significant device called laminated rubber bearing is usually found in structure. The complexity of the material which is made up from a combination of rubber and steel shim plates in alternate layer, has made it difficult to measure damping value.
openaire   +1 more source

Impact of Uncertain Parameters on Navier–Stokes Equations With Heat Transfer via Polynomial Chaos Expansion

International Journal for Numerical Methods in Fluids, Volume 98, Issue 5, Page 557-577, May 2026.
This study investigates the impact of uncertain parameters on Navier–Stokes equations coupled with heat transfer using the Intrusive Polynomial Chaos Method (IPCM). Sensitivity equations are formulated for key input parameters, such as viscosity and thermal diffusivity, and solved numerically using the Finite Element‐Volume method.
N. Nouaime, B. Després, M. A. Puscas, C. Fiorini   +3 more
wiley   +1 more source

Reduced-Order Modeling of Diffusive Effects on the Dynamics of Bubbles [PDF]

, 2003
The Rayleigh-Plesset equation and its extensions have been used extensively to model spherical bubble dynamics, yet radial diffusion equations must be solved to correctly capture damping effects due to mass and thermal diffusion.
Brennen, C. E., Colonius, T., Preston, A.   +2 more
core  

Role of Anharmonicity and Bimetallic Intermixing in the IR and Raman Spectra of Cun$_{n}$ and Pdn$_{n}$Cu6−n$_{6-n}$ Clusters (n<7$n\lt 7$). Ab Initio Benchmarking of DFT

Small Structures, Volume 7, Issue 5, May 2026.
High‐level ab initio and density functional theory calculations reveal a structural and spectroscopic transition from pla nar Cu6 to three‐dimensional Pd6, whose lowest energy triplet state undergoes a Jahn‐Teller distortion. This evolution from molecule‐like to metal‐like bonding produces distinct infrared and Raman fingerprints, providing reliable ...
Katarzyna M. Krupka, Alexander O. Mitrushchenkov, María Pilar de Lara‐Castells   +2 more
wiley   +1 more source

Calculating dispersion relations for waveguide immersed in perfect fluid

Mathematical Modelling and Analysis, 2018
Conventional finite element method (FEM) is capable of obtaining wave solutions, but large discretized structures at high frequency require high computational resources, the computational domain can be reduced by combining FEM with analytical assumption ...
Audrius Nečiūnas, Martynas Patašius, Rimantas Barauskas   +2 more
doaj   +1 more source

Hunga‐Tonga Volcano Plumbing System Inferred From Virtual Seismometer Approach

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract We present a surface wave tomography application based on event‐pair interferometry to investigate local (∼100 km) mid‐ocean crustal structures, with a particular focus on imaging a potential crustal solidified intrusive complex in a region lacking seismic stations.
Taghi Shirzad, Marcelo Bianchi, Mohsen Kazemnia, Götz Bokelmann   +3 more
wiley   +1 more source

Taking into Account Material Damping in Seismic Analysis of Structures

Tehnički Glasnik, 2020
The purpose of this paper is to justify that it is necessary to take into account physical and mechanical properties of soil and different materials of erected structures for damping vibrations in dynamic loads, and to suggest tools for modelling the ...
Mariia S. Barabash, Bogdan Y. Pisarevskyi, Yaroslav Bashynskyi   +2 more
doaj  

RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH

Jixie qiangdu, 2022
To solve the problem that the Houfeng Seismograph’s directional function’s historical record was generally questioned. The analysis concludes that the spherical pendulum seismic measurement scheme may be a feasible restoration scheme with Rayleigh wave ...
LIU Zhao, LIU YuMing, XU Hao, LI YaMei, ZHU YuTian   +4 more
doaj