Results 61 to 70 of about 125,122 (202)

Steady and transient flow structure in a rotameter with a ball float [PDF]

open access: yesEPJ Web of Conferences, 2019
Dimensions and material specifications of a commercial rotameter were used for investigating steady and transient flow structure in a rotameter with a ball float.
CANLI Eyub, ATES Ali
doaj   +1 more source

Fast Computation of Steady-State Response for Nonlinear Vibrations of High-Degree-of-Freedom Systems

open access: yes, 2018
We discuss an integral equation approach that enables fast computation of the response of nonlinear multi-degree-of-freedom mechanical systems under periodic and quasi-periodic external excitation.
Breunung, Thomas   +2 more
core   +1 more source

Dynamics of Controlled Hybrid Systems of Aerial Cable-Ways

open access: yes, 2006
Dynamics of the hybrid systems of aerial cable-ways is investigated. The eigenvalue problems are considered for such hybrid systems with different assumptions. An overview of different methods for eigenvalue problems is given. In the research, the method
Akulenko   +11 more
core   +1 more source

Closed-cycle, low-vibration 4 K cryostat for ion traps and other applications [PDF]

open access: yes, 2019
In-vacuo cryogenic environments are ideal for applications requiring both low temperatures and extremely low particle densities. This enables reaching long storage and coherence times for example in ion traps, essential requirements for experiments with ...
King, S. A.   +9 more
core   +4 more sources

Quantum Shuttle Phenomena in a Nanoelectromechanical Single-Electron Transistor

open access: yes, 2004
An analytical analysis of quantum shuttle phenomena in a nanoelectromechanical single-electron transistor has been performed in the realistic case, when the electron tunnelling length is much greater than the amplitude of the zero point oscillations of ...
A. N. Cleland   +6 more
core   +1 more source

Failure Analysis of Topside Facilities on Oil/Gas Platforms in the Bohai Sea

open access: yesJournal of Marine Science and Engineering, 2019
The jacket platform in the Bohai Sea oilfield is an important engineering development, offering design alternatives in this economically important region. However, ice-induced vibration in cold areas threatens the safety and operation of these platforms.
Songsong Yu, Dayong Zhang, Qianjin Yue
doaj   +1 more source

Effects of mistuning on dynamic behavior of nonlinear cyclic systems with lump masses and cubic nonlinearity [PDF]

open access: yes, 2016
Mistuning in cyclic symmetric systems increases severely the forced response of system and splits the modes. This paper concerns with nonlinear behavior of mistuned cyclic systems.
Estabragh, E. Raeisi   +2 more
core   +2 more sources

An efficient numerical procedure for calculating periodic vibrations of elastic mechanisms

open access: yesVietnam Journal of Mechanics, 2016
This paper proposes a numerical procedure based on the well-known Newmark integration method to determine initial conditions for the periodic solution of a system of linear differential equations with time-periodic coefficients.
Nguyen Van Khang   +2 more
doaj   +1 more source

Flow-Induced Vibrations of a Square Cylinder in the Combined Steady and Oscillatory Flow

open access: yesJournal of Marine Science and Engineering
The paper presents a two-dimensional RANS–SST k–ω investigation of vortex-induced vibration of a square cylinder with two degrees of freedom under combined steady and oscillatory flow at the Reynolds number of 5000, Keulegan–Carpenter number of 10, mass ...
Henry Francis Annapeh   +1 more
doaj   +1 more source

Control of Rotor-Blade Coupled Vibrations Using Shaft-Based Actuation

open access: yesShock and Vibration, 2006
When implementing active control into bladed rotating machines aiming at reducing blade vibrations, it can be shown that blade as well as rotor vibrations can in fact be controlled by the use of only shaft-based actuation.
René Hardam Christensen   +1 more
doaj   +1 more source

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