Results 11 to 20 of about 1,807 (216)

Characteristics and evaluation method of flow-induced vibration at tee connection caused by high velocity

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In the process plant, random vibration excited by the turbulence generated at tee connection might cause problem such as piping damage. In general, the beam mode piping vibration is known to be excited when the internal flow of the piping is the severe ...
Masato NISHIGUCHI   +2 more
doaj   +1 more source

Long span bridges buffeting response to wind turbulence [PDF]

open access: yesИнженерно-строительный журнал, 2020
The buffeting response of the cable-supported bridges is studied. Several wind turbulence models are summarized and wind field models for practical application in bridge and structural engineering is proposed. The wind turbulence model comprises the mean
R.N. Guzeev, A. Domaingo
doaj   +1 more source

Explicit Time-Domain Approach for Random Vibration Analysis of Jacket Platforms Subjected to Wave Loads

open access: yesJournal of Marine Science and Engineering, 2020
This paper is devoted to the random vibration analysis of jacket platforms under wave loads using the explicit time-domain approach. The Morison equation is first used to obtain the nonlinear random wave loads, which are discretized into random loading ...
Wei Lin, Cheng Su, Youhong Tang
doaj   +1 more source

Vibration levels of stacked parcel packages in laboratory test environment. Over-tested or under-tested?

open access: yesActa Technica Jaurinensis, 2021
Courier express parcel (CEP) shipments become one of the most important delivery methods in the Business-to-Consumer sales model. This paper observed and analyzed the vertical vibration levels that occur in stacked and unsecured parcels during express ...
Zsófia Németh   +3 more
doaj   +1 more source

On the Effects of Structural Coupling on Piezoelectric Energy Harvesting Systems Subject to Random Base Excitation

open access: yesAerospace, 2020
The current research investigates the novel approach of coupling separate energy harvesters in order to scavenge more power from a stochastic point of view.
Hamidreza Masoumi   +3 more
doaj   +1 more source

Seismic Response Damage of Nuclear Tower [PDF]

open access: yesEngineering and Technology Journal, 2012
The seismic response of the nuclear tower is analyzed by investigating the frequency response during the main recorded events. The dynamic characteristics of the nuclear tower under seismic response with higher intensity are pointed out the dominant ...
Kadhim Karim Mohsen
doaj   +1 more source

Investigation on random vibration fatigue of EMU axle-mounted sanding device

open access: yes机车电传动, 2022
Taking the sanding device of an electric multiple unit (EMU) as the object of study, which suffered from weld cracking in the service process, investigation was carried on its random vibration fatigue problem. Firstly, the stress response at the key part
HE Yuan   +3 more
doaj  

Experimental Design and Validation of an Accelerated Random Vibration Fatigue Testing Methodology

open access: yesShock and Vibration, 2015
Novel accelerated random vibration fatigue test methodology and strategy are proposed, which can generate a design of the experimental test plan significantly reducing the test time and the sample size.
Yu Jiang   +3 more
doaj   +1 more source

Commercial Vehicle-Based Robust Control of Seated Whole-Body Vibration Using Adaptive Indirect Type-2 Fuzzy Neural Network

open access: yesIEEE Access, 2020
Drivers of commercial vehicles are invariably subject to chronic diseases such as back pain as a result of exposure to severe cabin excitations. In this paper, a six degrees of freedom (6-DOF) coupled human-body and seat suspension system is modeled in ...
Hamid Taghavifar   +4 more
doaj   +1 more source

FEM verification of accelerated vibration test method based on - curve

open access: yesAdvances in Mechanical Engineering, 2022
Accelerated random vibration test is now the important dynamic performance and safety evaluation technique for transport packaging system during transportation.
Li-Jun Wang, Zhi-Wei Wang
doaj   +1 more source

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