Self-oscillation

@inproceedings{Jenkins2011Selfoscillation,
  title={Self-oscillation},
  author={Alejandro Jenkins},
  year={2011}
}
Physicists are very familiar with forced and parametric resonance, but usually not with selfoscillation, a property of certain dynamical systems that gives rise to a great variety of vibrations, both useful and destructive. In a self-oscillator, the driving force is controlled by the oscillation itself so that it acts in phase with the velocity, causing a negative damping that feeds energy into the vibration: no external rate needs to be adjusted to the resonant frequency. A little-known paper… Expand
Undamped transverse oscillations of coronal loops as a self-oscillatory process
Context. Standing transverse oscillations of coronal loops are observed to operate in two regimes, the rapidly decaying large amplitude oscillations, and undamped small amplitude oscillations. In theExpand
Stochastic thermodynamics of self-oscillations: the electron shuttle
Self-oscillation is a phenomenon studied across many scientific disciplines, including the engineering of efficient heat engines and electric generators. We investigate the single electron shuttle, aExpand
Light-fuelled freestyle self-oscillators
TLDR
Freestyle cantilever-type photoactuators that show versatile oscillation modes that provide new insights into understanding of self-oscillation phenomenon and offer new designs for future self-propelling micro-robots are reported. Expand
Chandler wobble: Stochastic and deterministic dynamics
We propose a model of the Earth’s torqueless precession, the “Chandler wobble,” as a self-oscillation driven by positive feedback between the wobble and the centrifugal deformation of the portion ofExpand
Selective High-Frequency Mechanical Actuation Driven by the VO2 Electronic Instability.
Relaxation oscillators consist of periodic variations of a physical quantity triggered by a static excitation. They are a typical consequence of nonlinear dynamics and can be observed in a variety ofExpand
Irreversibility of mechanical and hydrodynamic instabilities
The literature on dynamical systems has, for the most part, considered self-oscillators (i.e., systems capable of generating and maintaining a periodic motion at the expense of an external energyExpand
Generating Transverse Loop Oscillations through a Steady-flow Driver
In recent years, the decay-less regime of standing transverse oscillations in coronal loops has been the topic of many observational and numerical studies, focusing on their physical characteristics,Expand
Dynamic relaxation oscillations in a nonlinearly driven quartz crystal
We demonstrate thermo-mechanical relaxation oscillations in a strongly driven quartz crystal. Dynamic bifurcation leads to two stable oscillation states with a distinct electrical impedance. SlowExpand
Two Kinds of Self-Oscillating Circuits Mechanically Demonstrated
This study introduces two types of self-oscillating circuits that are frequently found in power electronics applications. Special effort is made to relate the circuits to the analogous mechanicalExpand
Propulsion driven by self-oscillation via an electrohydrodynamic instability
Oscillations of flagella and cilia play an important role in biology, which motivates the idea of functional mimicry as part of bio-inspired applications. Nevertheless, it still remains challengingExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 221 REFERENCES
Non-unilateral oscillations
Abstract This paper has shown the nature of the oscillatory phenomena involved in the parallel operation of A.C. generators driven by governor-controlled prime movers to be either stable or unstable,Expand
The Theory of Sound
THE second part of Lord Rayleigh's highly instructive work on acoustics contains the mechanics of oscillatory motions in liquids and gases. Atmospheric air is that medium by which by far the greaterExpand
Synchronization of pulse-coupled biological oscillators
A simple model for synchronous firing of biological oscillators based on Peskin's model of the cardiac pacemaker (Mathematical aspects of heart physiology, Courant Institute of Mathematical Sciences,Expand
Mode locking in quantum optics
Mode locking phenomena in acoustics and in laser physics are discussed and are shown to share a feature of the forced oscillator: Oscillation takes place at the forcing frequency (or frequencies).Expand
Resonance, Tacoma Narrows bridge failure, and undergraduate physics textbooks
The dramatic Tacoma Narrows bridge disaster of 1940 is still very much in the public eye today. Notably, in many undergraduate physics texts the disaster is presented as an example of elementaryExpand
Two-Stroke Oscillators
A four-stroke oscillator, whether symmetrical or moderately dissymmetrical, is one in which the linear, conservative elements receive energy from the source two times per period; such are typically aExpand
Thermoacoustic instabilities in the Rijke tube: experiments and modeling
Thermoacoustic instability can appear in thermal devices when unsteady heat release is coupled with pressure perturbations. This effect results in excitation of eigen acoustic modes of the system.Expand
Laplace and the Speed of Sound
OR A CENTURY and a quarter after Isaac Newton initially posed the problem in the Principia, there was a very apparent discrepancy of almost 20 per cent between theoretical and experimental values ofExpand
Synchronization - A Universal Concept in Nonlinear Sciences
TLDR
This work discusseschronization of complex dynamics by external forces, which involves synchronization of self-sustained oscillators and their phase, and its applications in oscillatory media and complex systems. Expand
Theory of vibration of the larynx
The vibration in the larynx is caused by an automatic modulation by the vocal cords of the air stream from the lungs. Analytically the mechanism is the same, and physically, closely analogous to thatExpand
...
1
2
3
4
5
...