Results 21 to 30 of about 360,412 (305)

Development of model for stability analysis in a balance piston mechanism in turbopump by using active control

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This study has developed a model for stability analysis in a balance piston mechanism. The balance piston mechanism is employed to suppress an axial vibration in the turbopump.
Shota YABUI   +2 more
doaj   +1 more source

Coupling analysis and vibration control of vehicle vertical vibration and pitching vibration

open access: yesSN Applied Sciences, 2023
Article highlights The coupling model of vehicle vertical vibration and pitching vibration is established, and the mechanism and key influencing factors of the coupling vibration are revealed. A test method for vehicle coupled vibration identification is
Xiaojun Zou   +3 more
doaj   +1 more source

Mechanistic Regimes of Vibronic Transport in a Heterodimer and the Design Principle of Incoherent Vibronic Transport in Phycobiliproteins [PDF]

open access: yes, 2018
Following the observation of coherent oscillations in non-linear spectra of photosynthetic pigment protein complexes, particularly phycobilliprotein such as PC645, coherent vibronic transport has been suggested as a design principle for novel light ...
Aspuru-Guzik, Alan   +4 more
core   +4 more sources

The Impact Analysis of Beating Vibration for Active Magnetic Bearing

open access: yesIEEE Access, 2019
In active magnetic bearing (AMB), the beat vibration will affect the flywheel rotary precision. A vibration model, which includes general dynamic stiffness and unbalance response different from the existing vibration research, is proposed to analyze the ...
Hui Gao, Xianhai Meng, Kejun Qian
doaj   +1 more source

Friction-induced vibration of a lubricated mechanical system [PDF]

open access: yesTribology International, 2013
In a lubricated interface, the local dynamic responses can be complex and depend on molecular effects in the confined lubricating films. In a mechanical system comprising one or more of such interfaces, the influence of the local interfacial behaviour on the total vibrational response remains largely unknown.
Sinou, Jean-Jacques   +2 more
openaire   +2 more sources

Analysis for the Vibration Mechanism of the Spillway Guide Wall Considering the Associated-Forced Coupled Vibration

open access: yesApplied Sciences, 2019
During the flood discharge in large-scale hydraulic engineering projects, intense flow-induced vibrations may occur in hydraulic gates, gate piers, spillway guide walls, etc. Furthermore, the vibration mechanism is complicated.
Jijian Lian   +3 more
doaj   +1 more source

Dynamic Analysis for a Reciprocating Compressor System with Clearance Fault

open access: yesApplied Sciences, 2021
In order to explore the failure mechanism of a reciprocating compressor system with clearance fault, we implemented a computational framework whereby a simulation model of the mechanism is established using ADAMS software in this paper, and a typical ...
Shungen Xiao   +3 more
doaj   +1 more source

Study on Vibration Transmission among Units in Underground Powerhouse of a Hydropower Station

open access: yesEnergies, 2018
Research on the safety of powerhouse in a hydropower station is mostly concentrated on the vibration of machinery structure and concrete structure within a single unit. However, few studies have been focused on the vibration transmission among units. Due
Jijian Lian, Hongzhen Wang, Haijun Wang
doaj   +1 more source

Proposed parametric cooling of bilayer cuprate superconductors by terahertz excitation [PDF]

open access: yes, 2015
We propose and analyze a scheme for parametrically cooling bilayer cuprates based on the selective driving of a $c$-axis vibrational mode. The scheme exploits the vibration as a transducer making the Josephson plasma frequencies time-dependent.
Cavalleri, A.   +4 more
core   +3 more sources

Selecting a vibration diagnostic defect ‘Mechanical weakening of a structure’

open access: yesIOP Conference Series: Materials Science and Engineering, 2016
The article describes the method of analysis of the levels of vibration signals of a support machine rotor in the radial directions and the results of its application for the diagnosis of mechanical loosening of structures of rotating machines for vibration acceleration peak values. Information about correspondence of the degree of a defect 'mechanical
Ermolaev, Andrey Vladimirovich   +1 more
openaire   +2 more sources

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