Self-excited oscillation
WebJun 11, 2024 · In the self-excited cavitation waterjet issued from the axisymmetric cavity, the oscillations of the shear layer corresponded to three orders of hydrodynamic modes. … WebApr 1, 2013 · Self-oscillation is the generation and maintenance of a periodic motion by a source of power that lacks a corresponding periodicity: the oscillation itself controls the phase with which the power source acts on it.
Self-excited oscillation
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WebThis article presents the application of a self-excited acoustic SAS system for non-destructive testing (NDT) for roof-bolt housings in laboratory and real mine conditions. The proposed system with a filtering mechanism was applied to the J64-27 composite anchors. The conducted tests allowed successful confirmation of the usefulness of the system in … WebNov 22, 2024 · Self-excited oscillation is a method to make a resonator vibrate at its natural frequency. This is widely used in vibration sensors such as mass sensors, atomic …
WebJun 20, 2024 · The best operating scheme of borehole hydraulic mining for underground oil shale is to use the pulsed water jet which is produced by the self-excited oscillation pulsed jet nozzle to break underground oil shale under the non-submerged condition. Moreover, the pulsed water jet should be placed parallel to the oil shale bedding. WebApr 19, 2024 · In this article, the self-excited oscillation of a supersonic inlet is studied, and the dynamic theoretical model of shock oscillation is established. The variation laws of …
WebIn this paper, inspired by a newly proposed two-dimensional nonlinear oscillator with an infinite number of coexisting attractors, a modified nonlinear oscillator is proposed. The original system has an exciting feature of having layer–layer coexisting attractors. One of these attractors is self-excited while the rest are hidden. By forcing this system with its … WebApr 14, 2024 · A self-excited oscillating pulsed abrasive water jet polishing method is proposed to solve the problems of low removal efficiency in traditional abrasive water jet …
WebApr 19, 2024 · Aiming at the problem of self-excited oscillation in a supersonic inlet, the oscillation suppression of parallel cavities in a shock system is studied. Based on the shock dynamic model, the theoretical calculation model of parallel cavity under dynamic shock is established, and the effects of cavity volume and oscillation frequency on shock …
WebSelf-Excited Oscillations in a Transmission System Using Series Capacitors. Abstract: Self-excitation can result from using series capacitors in EHV transmission circuits if the … dragoncon ticket pricesWebJan 1, 2009 · Self-excitedoscillations are encountered in a number of practical applications includingbrakes, clutches, belts, tires, and violins. To go beyond thederivation of the … emily weaver odWebJul 1, 2024 · A method of stabilizing the self-excited oscillation of a cantilevered pipe conveying fluid because of non–self-adjointness is proposed theoretically and experimentally. Complex eigenvalues... emily weaver ohioSelf-oscillation is the generation and maintenance of a periodic motion by a source of power that lacks any corresponding periodicity. The oscillator itself controls the phase with which the external power acts on it. Self-oscillators are therefore distinct from forced and parametric resonators, in which the power that … See more The study of self-oscillators dates back to Robert Willis, George Biddell Airy, James Clerk Maxwell, and Lord Rayleigh in the 19th century. The term itself (also translated as "auto-oscillation") was coined by the Soviet … See more Self-oscillation is manifested as a linear instability of a dynamical system's static equilibrium. Two mathematical tests that can be used to diagnose such an instability are the See more Population cycles in biology For example, a reduction in population of an herbivore species because of predation, this makes the … See more Railway and automotive wheels Hunting oscillation in railway wheels and shimmy in automotive tires can cause an uncomfortable … See more • Hopf bifurcation • Limit cycle • Van der Pol oscillator See more emily weavingWebApr 9, 2024 · The self-excited oscillation of the LCE spring oscillator is determined to result from the self-shading effect of the coating during its movement. The triggering condition of self-excited oscillation is determined via the contraction coefficient, damping coefficient, light intensity, gravitational acceleration, painting stretch, and spring ... emily webber travelWebDec 1, 2024 · Moreover, the self-excited oscillation modes are affected by incoming flow parameters, such as the Mach number, Reynolds number, boundary layer thickness, which participate in the selection of the self-excited oscillation mode [23]. dragoncon tickets 2021WebOct 17, 2012 · Nonlinear self-excited thermoacoustic oscillations appear in systems involving confined combustion in the form of coupled acoustic pressure oscillations and … emily webber iu health