Results 11 to 20 of about 67,126 (262)

Vibration and Stress Response of High-Speed Train Gearboxes under Different Excitations

open access: yesApplied Sciences, 2022
The vibration data of the gearbox on a high-speed train was measured, and the vibration characteristics were analyzed in this paper. The dynamic stress of the gearbox under the internal and external excitation was examined by a railway vehicle dynamic ...
Wangang Zhu, Wei Sun, Hao Wu
doaj   +1 more source

Analytical study on dynamic response of cantilever flexible retaining wall [PDF]

open access: yesArchives of Civil Engineering, 2023
Based on wave mechanics theory, the dynamic response characteristics of cantilever flexible wall in two-dimensional site are analyzed. The partial derivative of the vibration equation of soil layer is obtained, and the general solution of the volume ...
Xiuzhu Yang   +3 more
doaj   +1 more source

OLCD: Delivering an Exciting Future for Flexible Displays [PDF]

open access: yesInformation Display, 2019
AbstractThe development of glass‐free organic LCDs (OLCDs) promises a future of thin, lightweight, and shatterproof screens that are scalable to large areas and capable of sidestepping flat screens' limitations to embrace curved surfaces.
openaire   +1 more source

Vibration Behaviour Analysis and Vibration Suppression Studies of the Space Robot

open access: yesInternational Journal of Aerospace Engineering, 2022
Aiming at the problem that the vibration of space robot will reduce the dynamic accuracy of robot, a method of vibration suppression of space robot through trajectory planning is proposed.
Tian Yong   +3 more
doaj   +1 more source

High-Level Vibration for Single-Frequency and Multi-Frequency Excitation in Macro-Composite Piezoelectric (MFC) Energy Harvesters, Nonlinearity, and Higher Harmonics

open access: yesMicromachines, 2022
This paper presents an extensive experimental investigation to identify the influence of signal parameters on a piezoelectric harvester’s performance. A macro-fibre composite energy harvester was studied as an advanced, flexible, high-performance energy ...
Majid Khazaee
doaj   +1 more source

A Flexible Arrayed Eddy Current Sensor for Inspection of Hollow Axle Inner Surfaces

open access: yesSensors, 2016
A reliable and accurate inspection of the hollow axle inner surface is important for the safe operation of high-speed trains. In order to improve the reliability of the inspection, a flexible arrayed eddy current sensor for non-destructive testing of the
Zhenguo Sun   +4 more
doaj   +1 more source

Some Comments on the Nonlinear Dynamics of a Portal Frame under Base Excitation

open access: yesShock and Vibration, 2013
This paper presents a nonlinear dynamic analysis of a flexible portal frame subjected to support excitation, which is provided by an electro-dynamical shaker.
Aline Souza de Paula   +2 more
doaj   +1 more source

Control Strategy for Electric Vehicle Range-Extender Based on Hybrid Excitation Generator

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Based on a hybrid excitation generator, a novel electric vehicle range-extender was proposed and the control system structure and the working principle were described. The multi-speed point working area was determined, according to the overall efficiency
HOU Jue   +5 more
doaj   +1 more source

Power main circuit design of the flexible excitation systems for large hydropower units

open access: yesZhejiang dianli
In response to the system voltage stability and damping issues caused by insufficient dynamic reactive power support capability of renewable energy units, this paper proposes a novel power main circuit topology for flexible excitation systems suitable ...
YAN Wenci   +6 more
doaj   +1 more source

Vibration analysis of cylindrical liquid storage tanks that considers excitation phase difference

open access: yesMechanical Engineering Journal, 2023
An investigation is described of the hydroelastically coupled motion of a cylindrical tank partially filled with liquid in response to travelling seismic wave excitation.
Masahiko UTSUMI
doaj   +1 more source

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