Results 221 to 230 of about 1,408 (249)

Stick‐slip in the presence of a normal vibration

Tribotest, 2002
AbstractThis paper presents a dynamic analysis of a contact system subjected to an applied normal vibration. The tangential motion of the system is found to exhibit stick‐slip behaviour dependent on the applied vibration, even in the absence of a difference in static and kinetic friction or a negative gradient in the friction‐velocity relation.
M. Krallis, D. P. Hess
openaire   +1 more source

Control of Stick-Slip Vibrations

2006
Many technical applications are subjected to friction induced vibrations. These vibrations are mostly unwanted as they generate noise, increase wear and diminish accuracy. In this paper a feedback control is introduced that is capable to suppress these oscillations. The results are validated experimentally on a squealing brake.
Marcus Neubauer, Cord-Christian Neuber, Karl Popp   +2 more
openaire   +1 more source

Complimentarity Problems of Stick-Slip Vibrations

14th Biennial Conference on Mechanical Vibration and Noise: Dynamics and Vibration of Time-Varying Systems and Structures, 1993
Abstract Multibody systems with many friction contacts not being decoupled by some force laws afford a special treatment with respect to the uniqueness of the solution after a contact event. This problem can be solved by an optimization techniques including unequality constraints which corresponds exactly to the physical properties of ...
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Random Vibration of a Beam with a Stick-slip End Condition

Journal of Sound and Vibration, 1994
Abstract An analysis is presented of the response of a randomly excited beam with an axial stick-slip end condition. The emphasis of the present effort is on the case in which slipping is a relatively rare event so that, while it does not contribute significantly to the system damping, it does have a marked influence on the non-linear behaviour.
Miles, R. N., Bigelow, S. P.
openaire   +1 more source

Analytical approximations for stick–slip vibration amplitudes

International Journal of Non-Linear Mechanics, 2003
Abstract The classical “mass-on-moving-belt” model for describing friction-induced vibrations is considered, with a friction law describing friction forces that first decreases and then increases smoothly with relative interface speed. Approximate analytical expressions are derived for the conditions, the amplitudes, and the base frequencies of ...
Jon Juel Thomsen, Alexander Fidlin
openaire   +1 more source

Stick-Slip Vibration

2010
It is known that nonlinearities in the friction-velocity curves of dry friction may lead to instability of the steady frictional sliding, namely, friction-induced vibration. The Froude pendulum and the motion of a violin string under the action of a bow are frequently used as examples of friction-induced vibration.
openaire   +1 more source

Experimental Validation of Object Positioning Via Stick–Slip Vibrations

IEEE/ASME Transactions on Mechatronics, 2014
Accurate positioning of an object is important in many industrial applications. This task is usually performed using closed-loop control. Self-alignment of an object using stick-slip vibrations on a periodically excited table might be an alternative open-loop method for macro-scale applications.
van Hoof, J.A.J.M., Verhaegh, J.L.C., Fey, R.H.B., Meerakker, van de, P.C.F., Nijmeijer, H.   +4 more
openaire   +1 more source

Archwire vibration and stick-slip behavior at the bracket-archwire interface

American Journal of Orthodontics and Dentofacial Orthopedics, 2012
It is unknown whether or not intraoral vibrations affect stick-slip behavior at orthodontic bracket-archwire interfaces. In this study, we evaluated bracket-archwire stick-slip behavior as a function of ligation method and archwire vibration.In-vivo archwire vibrations were measured to obtain frequencies and amplitudes for ex-vivo testing.
Julie E, Olson, Ying, Liu, Jeffrey C, Nickel, Mary P, Walker, Laura R, Iwasaki   +4 more
openaire   +2 more sources

Dynamics of a Simple Damped Oscillator Undergoing Stick-Slip Vibrations

Meccanica, 1999
The authors study the dynamic behaviour of a simple oscillator consisting of a mass subjected to an elastic restoring force, and to viscous damping and dry friction forces arising from the contact with a moving belt. It is shown that the discontinuity of the governing equations induces non-standard bifurcations in the solutions paths of the system. The
GALVANETTO, UGO, BISHOP SR
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An Investigation into Stick-Slip Vibrations on Vehicle/Track Systems

Vehicle System Dynamics, 1998
SUMMARY A model for the numerical simulation of vehicle/track interaction and stick-slip vibration is presented. A finite element model is developed to calculate vertical contact forces. These forces are then coupled through the contact patch into a non-linear time-domain model by which the stick-slip vibration behaviour of a wheel-rail system is ...
W.X. WU, B.V. BRICKLE, J.H. SMITH, R.K. LUO   +3 more
openaire   +1 more source