Results 51 to 60 of about 41,109 (223)

Effect of Damping on the Natural Frequencies of Linear Dynamic Systems [PDF]

, 1961
An analysis is presented of the effect of weak damping on the natural frequencies of linear dynamic systems. It is shown that the highest natural frequency is always decreased by damping, but the lower natural frequencies may either increase or decrease,
Caughey, T. K., O'Kelly, M. E.
core   +1 more source

Assessing Mesoscale Heterogeneities in Hard Carbon Electrodes Through Deep Learning‐Assisted FIB‐SEM Characterization, Manufacturing and Electrochemical Modeling

Advanced Energy Materials, EarlyView.
A combination of discrete and finite element method models for the current collector deformation and electrochemical performance analysis, respectively. The models are calibrated and validated with electrochemical and imaging data of hard carbon electrodes. These electrodes were manufactured with different parameters (slurry solid contents of 35 and 40
Soorya Saravanan, Imelda Cardenas‐Sierra, Pei Sun, Hari Raj, Daniele Duranti, Mahnoor Nafees, Edoardo Rossi, Marco Sebastiani, Paul Vigneaux, Martin Petit, Maxime Moreaud, Francisco Fernandez, Alejandro A. Franco   +12 more
wiley   +1 more source

Data-Driven Identification of Rayleigh-Damped Second-Order Systems

, 2022
In this paper, we present a data-driven approach to identify second-order systems, having internal Rayleigh damping. This means that the damping matrix is given as a linear combination of the mass and stiffness matrices. These systems typically appear when performing various engineering studies, e.g., vibrational and structural analysis.
Pontes Duff, I., Goyal, P., Benner, P. ; https://orcid.org/0000-0003-3362-4103   +2 more
openaire   +3 more sources

On acoustic cavitation of slightly subcritical bubbles [PDF]

, 1998
The classical Blake threshold indicates the onset of quasistatic evolution leading to cavitation for gas bubbles in liquids. When the mean pressure in the liquid is reduced to a value below the vapor pressure, the Blake analysis identifies a critical ...
Harkin, Anthony, Kaper, Tasso J., Nadim, Ali   +2 more
core   +3 more sources

Two‐Phase Nanofluid Flow in a Non‐Newtonian Model Past a Deformable Sheet With Magnetized Environmental Effects: Statistical Modeling and ANOVA Analysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This paper presents a comprehensive numerical analysis of magnetohydrodynamic (MHD) Casson nanofluid movement over a permeable, linearly stretching sheet, integrating the contributions of non‐uniform heat generation or absorption and chemical interaction.
Manoj Kumar Sahoo, MD. Shamshuddin, Subhajit Panda, Umair Khan   +3 more
wiley   +1 more source

Dynamic Response Analysis of a Thin Plate with Partially Constrained Layer Damping Optimization under Moving Loads for Various Boundary Conditions

Applied Sciences, 2021
In this paper, the vibration analysis of a partially constrained layer damping plate subjected to moving loads is investigated. In addition, the first four order damping loss factor of the system is optimized with the location of partially constrained ...
Yun Qin, Qinghua Song, Zhanqiang Liu, Jiahao Shi   +3 more
doaj   +1 more source

Two‐Dimensional Flow and Thermal Energy Transfer in Non‐Newtonian Casson–Carreau Ternary Hybrid Nanofluids Over Stationary and Moving Wedge Surfaces With Radiation and Magnetic Field Effects

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Efficient thermal management in advanced industrial systems requires improved heat transfer performance, particularly under non‐Newtonian fluid behavior and complex surface geometries. This study investigates the two‐dimensional flow and heat transfer characteristics of ternary hybrid nanofluids over both stationary and moving wedge surfaces ...
A. O. Akindele, A. M. Obalalu, M. O. Afolabi, Umair Khan, Samia Elattar   +4 more
wiley   +1 more source

Frequency-independent damping models for a high-rise building with simultaneous horizontal and vertical seismic motions

Frontiers in Built Environment
Recent seismic analyses indicate that the structural damping ratio should be considered frequency-independent, for safe and accurate estimations. In response, damping models like the Wilson–Penzien (WP) damping model, that is one of the modal damping ...
Naohiro Nakamura, Yoshihiro Mogi, Akira Ota, Kunihiko Nabeshima   +3 more
doaj   +1 more source

Time-history analysis method for soil-underground structure system based on equivalent linear method

Yantu gongcheng xuebao, 2018
Site seismic analysis plays an important role in the practical seismic design of underground structures, and the equivalent linear method is a widely-used approach for the seismic response analysis of one-dimensional soil layer.
DU Xiu-li , XU Zi-gang , XU Cheng-shun , LI Yang , JIANG Jia-wei
doaj   +1 more source

Single-bubble sonoluminescence: Shape stability analysis of collapse dynamics in a semianalytical approach

, 2000
This paper theoretically analyzes the hydrodynamic shape stability problem for sonoluminescing bubbles. We present a semianalytical approach to describe the evolution of shape perturbations in the strongly nonlinear regime of violent collapse.
Bogoyavlenskiy, Vladislav A.
core   +1 more source