Results 261 to 270 of about 3,275 (306)

Feasibility Research on Coupled Friction/Piezoelectric Dampers

Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation, 2018
A new passive damper coupling the energy dissipative mechanisms of dry friction and piezoelectric shunting circuit is proposed. The idea is to embed the shunted piezoelectric materials to the dry friction dampers at appropriate positions, so that the elastic deformation of the dry friction dampers can be utilized to generate additional damping ...
Li, Lin, Yaguang Wu, Fan, Yu
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Semi-active control of friction dampers

Proceedings of 1995 34th IEEE Conference on Decision and Control, 2002
Quite a few papers have appeared dealing with how to minimize the effects of friction in machines. A recurring theme has been that friction is a dynamic phenomenon. As such, much attention has been paid to obtaining the appropriate friction model structure, and to the identification of model parameters.
P. Dupont, A. Stokes
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Vibration damper for a friction clutch

The Journal of the Acoustical Society of America, 1982
A vibration damper is disposed between the input and output members of a friction clutch to reduce the transmission of torsional vibrations. The damper has a plurality of elastomeric bands each having one end connected to the clutch input and the other end connected to the clutch output.
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Torsional Viscous-Friction Dampers

Journal of Fluids Engineering, 1949
Abstract This paper describes the large torsional viscous-friction or “Lanchester” dampers manufactured by the author’s company for use on Diesel engines. Some properties of the new silicone fluids, that are necessary for damper design, are given.
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Feasibility study of a tunable friction damper

Journal of Sound and Vibration, 2005
A new design of friction damper is proposed and called the tunable friction damper. The design is proposed as an alternative to a conventional sliding mass-type friction damper, which is commonly used to reduce vibration in rotating systems. The design combines advantages of the friction damper, which dissipates energy via sliding friction, and the ...
Joon-Hyun Lee, Ed Berger, Jay H. Kim
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Damper Friction And Vertical Dynamics

Vehicle Dynamics International
A team of dynamics experts has collaborated to research the effects of shock absorber friction on vehicle vertical dynamics, which is an important factor as the world moves towards more automated driving
Clemens Deubel, Scott Jarod Schneider, Günther Prokop   +2 more
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Assessment of semi-active friction dampers

Mechanical Systems and Signal Processing, 2017
Abstract The use of friction dampers has been widely proposed for a variety of mechanical systems for which applying viscoelastic materials, fluid based dampers or other viscous dampers is impossible. An important example is the application of friction dampers in aircraft engines to reduce the blades’ vibration amplitudes.
dos Santos, Marcelo Braga, Coelho, Humberto Tronconi, Lepore Neto, Francisco Paulo, Mahfoud, Jarir   +3 more
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Friction Damper Effects on Airfoil Aeromechanics

International Journal of Turbo and Jet Engines, 1997
Turbomachine design is directed at performance, accomplished with blading operating near to aeromechanics stability limits. Currently, linearized friction damper models are used to predict these stability limits. However, during engine development, these linearized solutions are often found to be inadequate.
Patrick D. Markham, Sanford Fleeter
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Friction braking type vibration damper

The Journal of the Acoustical Society of America, 1986
A vibration snubber for earthquake protection of piping including an auxiliary cylinder axially slidable in a main cylinder having a large diameter portion. The large diameter portion houses a flywheel which is secured to a rotatable center shaft. One end of the shaft is mounted in a bearing in the cylinder end.
Katsuaki Sunakoda, Yoshikazu Ito
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Friction Dampers to Control Building Motionics

Architectural Science Review, 2000
Means of dissipating energy in buildings oscillating due to seismic activity include viscous dampers, yielding of the structural members or of added sacrificial elements, and friction devices which slip when ground accelerations exceed a specified value. Of these schemes, friction dampers have proved to be the cheapest and least intrusive, and the most
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