Results 81 to 90 of about 2,512 (192)

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

International Journal of Mechanical System Dynamics, Volume 6, Issue 2, Page 327-343, June 2026.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee, Majid Rajaei, Mohammad Hossein Mahdavi Nasab, Parsa Shafiei   +3 more
wiley   +1 more source

Analysis of the backward bending modes in damped rotating beams

Advances in Mechanical Engineering, 2019
This article presents a study of the backward bending mode of a simply supported rotating Rayleigh beam with internal damping. The study analyses the natural frequency behaviour of the backward mode according to the internal viscous damping ratio, the ...
Jose Martínez-Casas, Francisco David Denia, Juan Fayos Sancho, Enrique Nadal Soriano, Juan Giner-Navarro   +4 more
doaj   +1 more source

Problems of finite element model updating of aircraft based on ground vibration test results [PDF]

Космические аппараты и технологии
The 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., Krasnorutskiy D. A., Berns V. A., Zhukov E. P., Shkoda A. V.   +4 more
doaj   +1 more source

Toward a Mixed‐Precision ADI Method for Lyapunov Equations

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT We apply mixed‐precision to the low‐rank Lyapunov ADI (LR‐ADI) by performing certain aspects of the algorithm in a lower working precision. Namely, we accumulate the overall solution, solve the linear systems comprising the ADI iteration, and store the inner low‐rank factors of the residuals in various combinations of IEEE 754 single and ...
Jonas Schulze, Jens Saak
wiley   +1 more source

A Continuum Approach to the Nonlinear In-Plane Galloping of Shallow Flexible Cables

Advances in Mathematical Physics, 2019
The aeroelastic stability of horizontal, suspended, shallow, iced cables is studied via a continuum model. Both external and internal damping, consistent with the Rayleigh model, are taken into account.
M. Ferretti, D. Zulli, A. Luongo
doaj   +1 more source

Comparison of A‐Posteriori Error Estimators in the Context of Parametric Model Order Reduction by Matrix Interpolation

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT The use of parametric model order reduction (pMOR) by matrix interpolation enables efficient simulation of large‐scale finite element (FE) models in multi‐query applications such as optimization and uncertainty quantification. In this method, high‐fidelity systems are sampled, individually reduced by projection‐based model order reduction, and
Sebastian Resch‐Schopper, Gerhard Müller   +1 more
wiley   +1 more source

Ultrasound Characterization of Plastic Bonded Explosives With Varied Binder Content and Density

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 6, Page 966-975, June 2026.
ABSTRACT Advanced explosive formulations and methods of production require rapid characterization for both processes and materials. Here, we present results for ultrasound characterization of a plastic bonded explosive (PBX) formulation as a function of binder weight percent and pressing density using through‐transmission sound speed measurements.
Jordan S. Lum, Paul B. Mirkarimi, Emily L. Robertson, Maxwell Lynch, Paul Martinez, Joseph W. Tringe, Kyle T. Sullivan   +6 more
wiley   +1 more source

Torsional Vibration Analysis of Double‐Walled Carbon Nanotubes Incorporating Viscoelasticity and Nonlocal Elasticity Under Deformable Boundary Conditions

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 6, June 2026.
ABSTRACT This study investigates the torsional vibration characteristics of double‐walled carbon nanotubes (DWCNTs) considering viscoelastic effects and nonlocal elasticity theory. The equations of motion are formulated based on the nonlocal constitutive relations and viscoelastic material behavior to accurately capture the small‐scale and time ...
Murat Akpınar, Hayrullah Gün Kadıoğlu, Mustafa Özgür Yaylı   +2 more
wiley   +1 more source

Efficient transient dynamic analysis of a crane bridge subjected to shake table tests using non-linear substructuring

Mechanics & Industry
The dynamic behavior of bridge cranes under earthquake is an essential issue for nuclear safety, requiring experimental data and validated numerical simulations.
Li Sijia, Brun Michael, Gravouil Anthony
doaj   +1 more source

Relative Source Time Functions, Spectral Ratios, and Near‐Source Spallation in the Source Physics Experiment Phase I Chemical Explosions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract The Source Physics Experiment (SPE) Phase I was composed of six chemical explosions at the Nevada National Security Sites (NNSS) between 2011 and 2016. The experiment provided a robust set of dense, local to regional distance observations suitable for characterizing shallow chemical explosions located within the same borehole.
James E. Pippin, Charles J. Ammon, Jonas A. Kintner   +2 more
wiley   +1 more source