Results 241 to 250 of about 34,534 (295)

MECHANICAL STICK-SLIP VIBRATIONS

International Journal of Bifurcation and Chaos, 1995
In this paper we consider the behavior of a two degree-of-freedom mechanical system incorporating static and dynamic friction, assumed to be a decreasing function of the relative sliding velocity. The model consists of two blocks linked by springs, which ride upon a moving belt.
GALVANETTO, UGO, BISHOP SR, BRISEGHELLA L.   +2 more
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Stick-Slip as a Mechanism for Earthquakes

Science, 1966
Stick-slip often accompanies frictional sliding in laboratory experiments with geologic materials. Shallow-focus earthquakes may represent stick-slip during sliding along old or newly formed faults in the earth. In such a situation, observed stress drops represent release of a small fraction of the stress supported by the rock surrounding the ...
W F, Brace, J D, Byerlee
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Fundamentals of stick-slip

Wear, 1993
Abstract Simultaneous measurements of momentary friction and electrical resistance using the hoop apparatus have resulted in new insights into the behavior of the ubiquitous thin interfacial films at contact spots. The experimental focus of the present paper is the amplitude of the stick-slip motion of a multifiber slider as a function of the ...
Chao Gao, Doris Kuhlmann-Wilsdorf, David D. Makel   +2 more
openaire   +1 more source

Frictional lag and stick-slip

Proceedings 1992 IEEE International Conference on Robotics and Automation, 2003
Dimensional and perturbation analyses are applied to the problem of stick-slip encountered during the motion of machines with nonlinear low-velocity friction. The friction model studied incorporates kinetic, viscous and Stribeck friction with frictional lag.
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Distributed manipulation with stick-slip contact

Proceedings 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003) (Cat. No.03CH37453), 2004
Actuator arrays are planar arrangements of two degree-of-freedom actuators that cooperatively translate and orient objects for efficient manipulation. This paper derives the equations of motion for an object with the friction interface switching between slip and no-slip contact at each actuator. A controller derived from kinematics is presented and its
Mark Bedillion, William C. Messner
openaire   +1 more source

Phase-Space Reconstructions and Stick-Slip

Nonlinear Dynamics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Feeny, B. F., Liang, J. W.
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Experimental study of stick‐slip behaviour

International Journal for Numerical and Analytical Methods in Geomechanics, 2004
AbstractSimple axi‐symmetric uni‐axial compression tests have been realized on dry loose samples of glass beads (diameters d: d=0.2 ± 0.05 mm, 0.75 ± 0.1 mm, or 3 mm) and on Hostun sand under small lateral confinement, σ3<60 kPa, using different sample sizes.
Adjémian, Florence, Evesque, Pierre
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Events Maps in a Stick-Slip System

Nonlinear Dynamics, 1997
The authors study a one-dimensional event map generated by a two degree-of-freedom mechanical system that undergoes self-exciting oscillations due to dry friction. Model of such a stick-slip system consists of two blocks supported by a moving belt. Each block is connected with a fixed support by a linear spring, and both blocks are connected together ...
GALVANETTO, UGO, KNUDSEN C.
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Optimal Vibratory Stick-Slip Transport

IEEE Transactions on Automation Science and Engineering, 2008
We describe a vibratory part transport mechanism that utilizes both static and dynamic friction to linearly transport parts in a horizontal direction. We derive a horizontal driving profile for the feeder surface that maximizes the steady-state velocity of parts on the surface subject to acceleration limits on the surface.
Paul Umbanhowar, Kevin M. Lynch
openaire   +1 more source

Naive model for stick-slip processes

The European Physical Journal E, 2007
This paper is a tutorial description of stick-slip in soft materials (rubber beads, gels) where inertial effects are negligible. A typical example is a rubber sphere, pressed against a glass surface (JKR contact). The sphere is driven from the top at a prescribed velocity U ( approximately 100 microm/s).
F, Brochard-Wyart, P-G, de Gennes
openaire   +2 more sources