Results 41 to 50 of about 11,015,445 (288)

Experimental and Numerical Investigation on Dynamic Properties and Human-Induced Vibrations of an Asymmetric Steel-Plated Stress-Ribbon Footbridge

Advances in Civil Engineering, 2021
This paper presents a comprehensive study on dynamic properties and human-induced vibrations of a slender asymmetric steel-plated stress-ribbon footbridge via both experimental and analytical methods.
Yi Zhang, Wei He, Jiewen Zhang, Hua Dong
doaj   +1 more source

Distributed lock-in drives broadband vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]

, 2013
A slender flexible body immersed in sheared cross-flow may exhibit vortex-induced vibrations (VIVs) involving a wide range of excited frequencies and structural wavenumbers.
Triantafyllou, Michael S., Karniadakis, George E., Bourguet, Rémi   +2 more
core   +1 more source

Lock-in of the vortex-induced vibrations of a long tensioned beam in shear flow [PDF]

, 2011
The occurrence of lock-in, defined as the local synchronization between the vortex shedding frequency and the cross-flow structural vibration frequency, is investigated in the case of a tensioned beam of length to diameter ratio 200, free to move in both
Rémi Bourguet, George E. Karniadakis, Triantafyllou, Michael S., Karniadakis, George E., Bourguet, Rémi, Michael S. Triantafyllou   +5 more
core   +1 more source

The effect of vibration on the possibility of a threat to the health of workers on scaffolding

MATEC Web of Conferences, 2018
Scaffoldings are specific structures that are particularly predisposed to vibrations. The article analyses the impact of vibrations induced by human activity on the stage for the possibility of a threat to the health of workers working in these ...
Grosel Jacek, Sawicki Marek, Sawicki Wojciech, Szóstak Mariusz, Wójcicki Zbigniew   +4 more
doaj   +1 more source

Experimental and Numerical Study on Dynamics of Two Footbridges with Different Shapes of Girders

Applied Sciences, 2020
The paper presents the experimental and numerical results of the dynamic system identification and verification of the behavior of two footbridges in Poland. The experimental part of the study involved vibration testing under different scenarios of human-
Anna Banas, Robert Jankowski
doaj   +1 more source

Effects of Damping and Reynolds Number on Vortex-Induced Vibrations [PDF]

, 2007
Vortex-induced vibrations have been studied experimentally with emphasis on damping and Reynolds number effects. Our system was an elastically-mounted rigid circular cylinder, free to oscillate only transverse to the flow direction, with very low ...
Klamo, Joseph Thomas
core   +1 more source

Modelling Human-Structure Interaction in Pedestrian Bridges Using a Three-Dimensional Biomechanical Approach

Applied Sciences
Pedestrian bridges, which are essential in urban and rural infrastructures, are vulnerable to vibrations induced by pedestrian traffic owing to their low mass, stiffness, and damping.
Juan D. Aux, Bryan Castillo, Johannio Marulanda, Peter Thomson   +3 more
doaj   +1 more source

Structural Vibration Comfort: A Review of Recent Developments

Buildings
With continuous improvements in the social economy and living standards of individuals, the vibration comfort of building structures has gradually been emphasized by academic and engineering communities, such as vehicle-induced vibrations in buildings ...
Weiping Xie, Yumeng Hua
doaj   +1 more source

Long-Term Seismometric Monitoring of the Two Towers of Bologna (Italy): Modal Frequencies Identification and Effects Due to Traffic Induced Vibrations

Frontiers in Built Environment, 2020
The rise of human activities and the constant increase of vehicles traffic in the cities, and in particular of heavy vehicles such as buses and trucks, causes continues ambient vibrations that can detrimentally affect the conservation of built artifacts,
Simonetta Baraccani, Riccardo M. Azzara, Michele Palermo, Giada Gasparini, Tomaso Trombetti   +4 more
doaj   +1 more source

Mutant p53R273H disrupts PDPK1 homodimerization and contributes to PDPK1 activation

Molecular Oncology, EarlyView.
How mutant p53R273H drives AKT signaling is unclear. We show that p53R273H, but not wild‐type, directly binds PDPK1 via a mutation‐dependent conformational change. This interaction disrupts inhibitory PDPK1 homodimerization and enhances AKT phosphorylation.
Mei Chee Lim, Alvin Kunyao Guo, Yoko Itahana, Srinivasaraghavan Kannan, Valerie Goh, Mingmin Ong, Terina Yan Wen Tay, Weiying Ye, Sabhashina Radha Krishnan, Jun Nishiyama, Chandra S Verma, Koji Itahana   +11 more
wiley   +1 more source