Results 61 to 70 of about 261,690 (220)

Elastic Wave Properties of an Adaptive Electromechanical Metamaterial Beam

Shock and Vibration, 2020
An adaptive metamaterial beam with a couple of electromechanical resonators in each unit cell is proposed in this study to open Bragg bandgap or locally resonant bandgap for flexural wave attenuation in Euler–Bernoulli beams.
Xi-Ning Zhao, Xiao-Dong Yang
doaj   +1 more source

A Gimballed Control Moment Gyroscope Cluster Design for Spacecraft Attitude Control

Aerospace, 2021
This paper addresses the problem of singularity avoidance in a cluster of four Single-Gimbal Control Moment Gyroscopes (SGCMGs) in a pyramid configuration when used for the attitude control of a satellite by introducing a new gimballed control moment ...
Charalampos Papakonstantinou, Vaios Lappas, Vassilis Kostopoulos   +2 more
doaj   +1 more source

Nonlinear Dynamics of the High-Speed Rotating Plate

International Journal of Aerospace Engineering, 2018
High speed rotating blades are crucial components of modern large aircraft engines. The rotating blades under working condition frequently suffer from the aerodynamic, elastic and inertia loads, which may lead to large amplitude nonlinear oscillations ...
Minghui Yao, Li Ma, Wei Zhang
doaj   +1 more source

Initial Parameter Analysis about Resonant Orbits in Earth-Moon System

Advances in Astronomy, 2019
The initial parameters about resonant orbits in the Earth-Moon system were investigated in this study. Resonant orbits with different ratios are obtained in the two-body problem and planar circular restricted three-body problem (i.e., PCRTBP).
Li-Bo Liu, Ying-Jing Qian, Xiao-Dong Yang   +2 more
doaj   +1 more source

Shock-Induced Vibration of Composite Truss Core Sandwich Plates with Distributed Nonlinear Absorbers by Optimal Locations

Actuators, 2022
In order to solve the problems of limited installation space and strict additional quality, the effects of internal distributed nonlinear energy sinks (NES) considering optimal locations on a composite truss core sandwich plate are investigated in this ...
Wei Zhang, Weixing Zhang, Zhong Luo, Jianen Chen, Xiangying Guo   +4 more
doaj   +1 more source

Impact of inflow conditions and turbine placement on the performance of offshore wind turbines exceeding 7 MW [PDF]

Wind Energy Science
Accurately assessing wind turbine performance in large offshore wind farms requires a nuanced understanding of how inflow parameters, turbulence intensity (TI), wind shear, and wind veer are associated with power production across different turbine rows.
K. Vratsinis, K. Vratsinis, R. Marini, R. Marini, P.-J. Daems, P.-J. Daems, L. Pauscher, L. Pauscher, L. Pauscher, J. van Beeck, J. van Beeck, J. Helsen, J. Helsen, J. Helsen   +13 more
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Revue Vibrations [réédition numérique]

, 2017
Vibrations. Musiques, médias, société (d’abord sous-titrée Revue d’étude des musiques populaires) a été lancée par Antoine Hennion, Jean-Rémy Julien et Jean-Claude Klein en 1985 aux Éditions Privat.
Hennion, Antoine, Sklower, Jedediah
core   +1 more source

Nonlinear Dynamics of Imperfect FGM Conical Panel

Shock and Vibration, 2018
Structures composed of functionally graded materials (FGM) can satisfy many rigorous requisitions in engineering application. In this paper, the nonlinear dynamics of a simply supported FGM conical panel with different forms of initial imperfections are ...
Yan Niu, Yuxin Hao, Minghui Yao, Wei Zhang, Shaowu Yang   +4 more
doaj   +1 more source

Damage detections in nonlinear vibrating thermally loaded plates [PDF]

, 2009
In this work, geometrically nonlinear vibrations of fully clamped rectangular plates subjected to thermal changesare used to study the sensitivity of some vibration response parameters to the presence of damage and elevated temperature. The geometrically
Trendafilova, Irina, Manoach, Emil, I. Trendafilova, E. Manoach   +3 more
core   +1 more source

Dynamics of Structures with Distributed Gyroscopes: Modal Discretization Versus Spatial Discretization

Applied Sciences, 2019
In this study, two discretization numerical methods, modal discretization and spatial discretization methods, were proposed and compared when applied to the gyroscopic structures.
Xiao-Dong Yang, Bao-Yin Xie, Wei Zhang, Quan Hu   +3 more
doaj   +1 more source