Suppression of self-excited vibrations by a random parametric excitation

被引：0
|
作者：
R. V. Bobryk
D. Yurchenko
A. S. Bratus
机构：
[1] Jan Kochanowski University,Department of Mathematics and Natural Sciences
[2] Heriot-Watt University,Institute of Mechanical, Process & Energy Engineering
[3] Russian University of Transport (MIIT),Department of Applied Mathematics
来源：
Nonlinear Dynamics | 2017年 / 90卷
关键词：
Self-excited vibration; Parametric excitation; Bounded noise; Mean-square stability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Previous theoretical and experimental studies have shown that some vibrating systems can be stabilized by zero-averaged periodic parametric excitations. It is shown in this paper that some zero-mean random parametric excitations can also be useful for this stabilization. Under some conditions, they can be even more efficient compared to the periodic ones. Two-mass mechanical system with self-excited vibrations is considered for this comparison. The so-called bounded noise is used as a model of the random parametric excitation. The mean-square stability diagrams are obtained numerically by considering an eigenvalue problem for large matrices.
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页码：1671 / 1679
页数：8
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