TY - JOUR
T1 - Stick-slip motion and force fluctuations in a driven two-wave potential
AU - Rozman, M. G.
AU - Urbakh, M.
AU - Klafter, J.
PY - 1996
Y1 - 1996
N2 - A model of a particle interacting with two periodic potentials, one of which is externally driven, is analyzed. Three regimes are identified in the motion of the driven plate: (a) stick-slip motion, (b) intermittent stick slip characterized by force fluctuations, and (c) sliding which occurs above a critical driving velocity vc. In the vicinity of vc the power spectra of the force obey a ω−2 law and the force fluctuations decrease as \(vc-v\)1/2 for v < vc. Our calculations suggest that stick-slip dynamics is characterized by chaotic behavior of the top plate and the embedded molecular system. An equation is derived which provides a coarse-grained description of the plate motion near vc.
AB - A model of a particle interacting with two periodic potentials, one of which is externally driven, is analyzed. Three regimes are identified in the motion of the driven plate: (a) stick-slip motion, (b) intermittent stick slip characterized by force fluctuations, and (c) sliding which occurs above a critical driving velocity vc. In the vicinity of vc the power spectra of the force obey a ω−2 law and the force fluctuations decrease as \(vc-v\)1/2 for v < vc. Our calculations suggest that stick-slip dynamics is characterized by chaotic behavior of the top plate and the embedded molecular system. An equation is derived which provides a coarse-grained description of the plate motion near vc.
UR - http://www.scopus.com/inward/record.url?scp=4243508578&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.77.683
DO - 10.1103/PhysRevLett.77.683
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:4243508578
VL - 77
SP - 683
EP - 686
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 4
ER -