Results 21 to 30 of about 623,845 (356)
Shock and Vibration, 2021 In this paper, a passive damper based on energy dissipation through shock and dry friction (shock-friction damper) is investigated regarding its design and effectiveness for damping self-excited torsional vibrations similar to those occurring in deep ...
Vincent Kulke +2 more
doaj +1 more source
Friction Damper Optimization: Simulation of Rainbow Tests [PDF]
Journal of Engineering for Gas Turbines and Power, 1999 Friction dampers have been used to reduce turbine blade vibration levels for a considerable period of time. However, optimal design of these dampers has been quite difficult due both to a lack of adequate theoretical predictions and to difficulties in conducting reliable experiments.
Kenan Y. Sanliturk +3 more
openaire +1 more source
FLUTTER ANALYSIS OF BLISKS WITH FRICTION RING DAMPERS [PDF]
Proceedings of Global Power & Propulsion Society, 2022 Aeroelastic flutter is a phenomenon when blades experience an aeroelastic selfexcitation from the surrounding air resulting in the full destruction of aeroengines. It poses a big challenge for aeroengine bladeddisks design, especially for integrally bladeddisks (blisks).
Sun, Yekai, Yuan, Jie, Salles, Loïc
openaire +3 more sources
An equivalent approach for modelling butterfly-hysteresis passive variable friction damper
SN Applied Sciences, 2022 This research work proposes an equivalent approach modelling the peculiar hysteretic behavior of passive variable friction damper, for engineers who call for a simplified way to simulate such damper in anti-earthquake engineering practice with acceptable
Wenlu Wen +4 more
doaj +1 more source
Analytical Formulation of the Jacobian Matrix for Non-linear Calculation of the Forced Response of Turbine Blade Assemblies with Wedge Friction Dampers [PDF]
, 2006 A fundamental issue in turbomachinery design is the dynamical stress assessment of turbine blades. In order to reduce stress peaks in the turbine blades at engine orders corresponding to blade natural frequencies, friction dampers are employed.
Cameron +15 more
core +1 more source
Study on damping characteristics of steam turbine hollow vane with damper
Nihon Kikai Gakkai ronbunshu, 2014 A vane used in a low pressure end of steam turbine is usually fixed to a shroud and a casing by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping, because the ...
Yasutomo KANEKO +3 more
doaj +1 more source
The dynamic characterisation of disk geometry particle dampers [PDF]
, 2005 Particle dampers (PDs) have the advantages of being simple in geometry, small in volume and applicable in extreme temperature environments. Experimental studies have shown that PDs can offer considerable potential for suppressing structural resonant ...
Duran +7 more
core +1 more source
Nihon Kikai Gakkai ronbunshu, 2014 For the passive vibration isolation system, a friction damper is advantageous at cost, a maintenance, etc. However, the conventional damper of constant friction force has performance limitations; the isolation characteristic declines when the friction ...
Hideya YAMAGUCHI +2 more
doaj +1 more source
A Semi‐active piezoelectric friction damper
Earthquake Engineering & Structural Dynamics, 2014 SummaryThis research investigates the development of a semi‐active piezoelectric friction damper for controlling the seismic response of large‐scale structures. The proposed device is made of Duplex steel and leads to high friction capacity, which can be developed either in passive or semi‐active modes.
Pardo Varela Javier Ignacio +1 more
openaire +4 more sources
Energy dissipation prediction of particle dampers [PDF]
, 2009 This paper presents initial work on developing models for predicting particle dampers (PDs) behaviour using the Discrete Element Method (DEM). In the DEM approach, individual particles are typically represented as elements with mass and rotational ...
Daniel, M.C., Rongong, J.A., Wong, C.X.
core +1 more source