Results 1 to 10 of about 175,893 (168)

Acceleration Response of the Railway Bridges - Verification of the Limit State of Acceleration

Communications, 2019
The dynamic response of a girder bridge under trains is studied with an emphasis on the vertical track acceleration. The vehicles are modelled as a series of moving loads.
Milan Moravcik
doaj   +3 more sources

The Responsibility-Sharing of Nation-States and the ACT-Accelerator [PDF]

International Journal of Health Policy and Management, 2021

Minju Jung, Simon Rushton
openaire   +5 more sources

Computer-Vision-Based Vibration Tracking Using a Digital Camera: A Sparse-Optical-Flow-Based Target Tracking Method

Sensors, 2022
Computer-vision-based target tracking is a technology applied to a wide range of research areas, including structural vibration monitoring. However, current target tracking methods suffer from noise in digital image processing.
Guang-Yu Nie, Saran Srikanth Bodda, Harleen Kaur Sandhu, Kevin Han, Abhinav Gupta   +4 more
doaj   +1 more source

Experimental Study and Damping Effect Analysis of a New Tuned Liquid Damper Based on Karman Vortex Street Theory

Buildings, 2023
In order to solve the shortcomings of traditional TLDs (tuned liquid dampers), such as their narrow frequency bands and their occupation of large amounts of space, based on deep-water theory, a new type of TLD incorporating Karmen vortex street theory is
Hongmei Ren, Qiaoqiao Fan, Zheng Lu
doaj   +1 more source

Shaking Table Test and Parameter Analysis on Vibration Control of a New Damping System (PDAL)

Buildings, 2022
In order to make full use of the advantages of PD (particle damper) and TLD (tuned liquid damper) technologies, a new kind of damping system combining these two already-existing dampers is proposed and was named as PDAL (tuned particle damper with ...
Hongmei Ren, Qiaoqiao Fan, Zheng Lu
doaj   +1 more source

Analysis of longitudinal vibration acceleration based on continuous time-varying model of high-speed elevator lifting system with random parameters

Mechanics & Industry, 2021
In this paper, for studying the influence of the randomness of structural parameters of high-speed elevator lifting system (HELS) caused by manufacturing error and installation error, a continuous time-varying model of HELS was constructed, considering ...
Zhang Qing, Hou Tao, Jing Hao, Zhang Ruijun   +3 more
doaj   +1 more source

Field Measurement of Vibration Response on Large-Span Steel Structure of High-Speed Railway Station Under Multiple Load Excitations

Taiyuan Ligong Daxue xuebao, 2021
On the basis of the health monitoring system of Taiyuan South Railway Station Steel Structure House, the measured acceleration data of the steel structure station during train arrival、departure and pass, crowd-induced excitations, and construction load ...
Hui GUO, Yi AN, Xin CHENG, Honggang LEI
doaj   +1 more source

Effect of Elastomeric Bearing Stiffness on the Dynamic Response of Railway Bridges Considering Vehicle–Bridge Interaction

Applied Sciences, 2022
This article presents a numerical study that aims to explore the impacts of the stiffness of elastomeric bearings on the dynamic behavior of railway bridges under train-induced vibrations.
Emrah Erduran, Christian Nordli, Semih Gonen   +2 more
doaj   +1 more source

Centrifugal shaking table tests on dynamic response of bucket foundation-sandy soil

Yantu gongcheng xuebao, 2020
In the sites with seismic intensity greater than 7 degrees, liquefaction identification of sandy soil within 15 m is required by the relevant seismic codes.
LIU Run 1, LI Cheng-feng 1, LIAN Ji-jian 1, MA Peng-cheng 2
doaj   +1 more source

Structural Nonlinear Damage Identification Method Based on the Kullback–Leibler Distance of Time Domain Model Residuals

Remote Sensing, 2023
Under external load excitation, damage such as breathing cracks and bolt loosening will cause structural time domain acceleration to have nonlinear features.
Heng Zuo, Huiyong Guo
doaj   +1 more source