Results 51 to 60 of about 283,093 (346)

Identification and evaluation of linear damping models in beam vibrations [PDF]

, 1969
Sensitive method, identifying effective damping mechanisms, involves comparing experimentally determined ratio of first to second mode magnification factors related to common point on beam.
Boers, B. L., Rosenberg, G. S., Wambsganss, M. W., Jr.   +2 more
core   +1 more source

The spatial damping of magnetohydrodynamic waves in a flowing partially ionised prominence plasma

, 2010
Solar prominences are partially ionised plasmas displaying flows and oscillations. These oscillations show time and spatial damping and, commonly, have been explained in terms of magnetohydrodynamic (MHD) waves. We study the spatial damping of linear non-
Ballester, J. L., Carbonell, M., Forteza, P., Oliver, R.   +3 more
core   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
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

Study of the effect of specimen size and frequency on the structural damping property of beam

Mechanical Engineering Journal, 2016
It is said that the parameters that characterize structural damping, i.e., the loss factor, are identical to the material of the specimen, but in actuality, the damping property is sometimes affected by specimen size or the frequency.
Shozo KAWAMURA, Masato KITA, Masami MATSUBARA, Tomohiko ISE   +3 more
doaj   +1 more source

On the robustness of the average power ratios in damping estimation: application in the structural health monitoring of composites beams [PDF]

, 2010
In composites structures, cracking, delamination will cause changes in the measured dynamic response of structure and so on experimentally modal parameters.
Morlier, Joseph, Yin, H.P.
core   +3 more sources

Evaluation Damping Performance for Hydrostatic Bearing Film by Damping Ratio Scaling

DEStech Transactions on Computer Science and Engineering, 2019
This paper investigates how to evaluate the damping ratio in practical measurement for hydrostatic bearing which possesses overdamped damping. The traditional methods such as decayed response, band width of resonant peak, transient response of step excitation and hysteresis circle cannot be utilized for get over overdamped behavior.
Yuan KANG, Sheng-Yen HU, Wen-Chou CHEN, Hsin-Ming FU   +3 more
openaire   +2 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Dependence of anisotropy and damping on shape and aspect ratio in micron sized Ni 81Fe 19 elements [PDF]

, 2013
Copyright © 2004 American Institute of PhysicsWe have studied magnetic anisotropy and damping in Ni81Fe19 elements of different shape and aspect ratio by time-resolved scanning Kerr effect microscopy and micromagnetic simulations.
Barman, A., Hicken, R.J., Kruglyak, V.V., Kundrotaite, A., Rahman, M., Scott, J.   +5 more
core   +1 more source