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Experimental study and analysis of shock train self-excited oscillation in an isolator with background waves [PDF]
Journal of Zhejiang University: Science A, 2020 A study of shock train self-excited oscillation in an isolator with background waves was implemented through a wind tunnel experiment. Dynamic pressure data were captured by high-frequency pressure measurements and the flow field was recorded by the high-
Wen-Xin Hou, Juntao Chang, Chen Kong
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An Introduction to Self-Excited Oscillations
Volume 7: Engineering Education and Professional Development, 2009This paper describes an approach used to introduce a type of nonlinear problems in an undergraduate class on mechanical vibrations. Self-excited oscillations are encountered in a number of practical applications including brakes, clutches, belts, tires, and violins.
PANCIROLI, RICCARDO, S. Abrate
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Oscillations of a Self-Excited, Nonlinear System
Journal of Applied Mechanics, 1984A system of self-excited, nonlinear differential equations exhibiting frequency entrainment is studied. Although similar equations describe electrical oscillators and machine-tool chattering, the results presented herein apply specifically to a model for the vortex-induced oscillation of linear structures.
Hall, S. A., Iwan, W. D.
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Self-excited piezoelectric cantilever oscillators
Sensors and Actuators A: Physical, 1996We describe a micromachined self-excited piezoelectric cantilever device whose oscillating frequency is in the audio frequency range. The 2000 x2000x2.8 /spl mu/m/sup 3/ cantilever has a zinc oxide (ZnO) piezoelectric thin film between two aluminum (Al) layers on a supporting layer of low-pressure chemical-vapor-deposited (LPCVD) low stress silicon ...
Lee, SS Lee, Seung Seob, White, RM
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Auto-oscillation Systems with Inertial Self-excitation
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1984AbstractA class of dynamical systems is described for which self‐excitation of oscillations is due to inertial interaction between the variables. A number of typical examples are presented for autooscillation systems of this type which are relevant to various fields of science and technology.
Babitskij, V. I., Landa, P. S.
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Thermodynamic Analysis on Thermoacoustic Self-Excited Oscillation
Open Systems & Information Dynamics, 2003Thermodynamic mechanism of thermoacoustic self-excited oscillation is analyzed in this paper. The law of minimizing entropy flow is obtained basing on the fundamentals of finite-time thermodynamics. The results obtained here show that the thermoacoustic self-excited oscillation, which is a non-isentropic oscillation with power-output corresponding to ...
Qing Li +4 more
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1997
A self-excited system is a nonconservative system which possesses the ability to accomplish an undamped periodic oscillation, and is characterized by the presence of the following components: 1. a constant energy source 2. an oscillatory system 3.
Yu. A. Mitropolskii, Nguyen Van Dao
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A self-excited system is a nonconservative system which possesses the ability to accomplish an undamped periodic oscillation, and is characterized by the presence of the following components: 1. a constant energy source 2. an oscillatory system 3.
Yu. A. Mitropolskii, Nguyen Van Dao
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An adaptive mass damper for self‐excited oscillations
Journal of Structural Control, 1999AbstractAn adaptive tuned mass damper aiming to optimally increase the critical flow velocity of transverse galloping oscillations is presented. The structure, simply modeled as an elastically supported bluff body exposed to a steady flow, has been connected to an added mass by a spring and a dashpot varying according to an adaptive control algorithm ...
GATTULLI, VINCENZO, ROMEO, Francesco
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