Document Detail


Synchronization of mechanical phase oscillators.
MedLine Citation:
PMID:  19355459     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The Kuramoto model of a large number of weakly interacting phase oscillators exhibits a phase transition to synchronization. The literature has seen analytic theory and numerical simulations for both the Kuramoto model and sundry generalizations. Most real-world systems (e.g., flashing fireflies) imperfectly match the model, and their synchronization behaviors can therefore be taken to be in merely qualitative support of the theory. Here a mechanical system with well-understood microphysics is presented. A number N (of order 50) of eccentrically weighted DC motors (cell phone vibrators) is mounted on a plate. Each motor radiates into the plate and responds to its motion. If the plate dynamics is dominated by a single normal vibration mode the system is well described by finite-N Kuramoto equations. Transitions to synchronization are observed in accord with theoretical expectations based on the quality factor of the plate, the number of motors, the ratio of the motor mass to the plate mass, and the natural speed of the motors. Calculations and results on a rich generalized-Kuramoto model are also presented, in which the plate dynamics entails many normal modes of vibration, and for which the governing equations resemble those of a laser.
Authors:
David Mertens; Richard Weaver; John Koliniski
Related Documents :
20442029 - Guided lamb wave electroacoustic devices on micromachined aln/al plates.
18529989 - Three dimensional orthogonality of the lamb modes in layered plates of elastic and visc...
7334169 - Velocity of propagation of bone-conducted sound in a human head.
17743109 - Global tectonics and space geodesy.
3307299 - A simple and exact two-point interpolation method for determination of haemolytic activ...
18334349 - Calculations of lamb wave band gaps and dispersions for piezoelectric phononic plates u...
16092349 - Optical levitation and manipulation of stuck particles with pulsed optical tweezers.
18068209 - Atmospheric concentrations and phase partitioning of polybrominated diphenyl ethers (pb...
16592039 - Computer simulation of fluorescence depolarization due to brownian motion.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  125     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-04-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2725     Citation Subset:  IM    
Affiliation:
Dept of Phys., Univ. of Illinois, 1110 W. Green St., Urbana, ILDiv. of Eng. and Appl. Sci., Harvard Univ., Cambridge, MA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Quality judgments for music signals by normal-hearing and hearing-impaired listeners.
Next Document:  The incongruency advantage in elderly versus young normal-hearing listeners.