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Synchronization of active mechanical oscillators by an inertial load

Vilfan, A; Duke, T; (2003) Synchronization of active mechanical oscillators by an inertial load. PHYS REV LETT , 91 (11) , Article 114101. 10.1103/PhysRevLett.91.114101. Green open access

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Abstract

Motivated by the operation of myogenic (self-oscillatory) insect flight muscle, we study a model consisting of a large number of identical oscillatory contractile elements joined in a chain, whose end is attached to a damped mass-spring oscillator. When the inertial load is small, the serial coupling favors an antisynchronous state in which the extension of one oscillator is compensated by the contraction of another, in order to preserve the total length. However, a sufficiently massive load can synchronize the oscillators and can even induce oscillation in situations where isolated elements would be stable. The system has a complex phase diagram displaying quiescent, synchronous and antisynchronous phases, as well as an unusual asynchronous phase in which the total length of the chain oscillates at a different frequency from the individual active elements.

Type: Article
Title: Synchronization of active mechanical oscillators by an inertial load
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.91.114101
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.91.114101
Language: English
Additional information: © 2003 The American Physical Society
Keywords: INSECT FIBRILLAR MUSCLE, BEETLE FLIGHT MUSCLE, SKELETAL MYOFIBRILS, MOLECULAR MOTORS, LENGTH, CONTRACTION, SARCOMERES, PHYSIOLOGY, FIBERS
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/89914
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