Æolian tones and stall flutter of lengthy objects in fluid flows
Æolian tones and stall flutter of lengthy objects in fluid flows
复制标题
流体流动中长物体的声调和失速颤动
DOI:
10.1088/1751-8113/43/37/375101
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Landa P
中科院分区:
文献类型:
--
作者:
Landa P
We theoretically consider the spontaneous oscillations of an elastic cylinder in a streaming fluid flow. Such oscillations are responsible for stall flutter in eg turbine blades and bridges, or Æolian tones when in the acoustic range. The process of vortex separation from the oscillating surface is modelled as a self-excited oscillator. The vortex separation frequency remains synchronized with the oscillations of the cylinder over a great range of frequency mismatches, enabling the amplitudes and frequencies to be calculated. Only when the vortex separation frequency is much less than the cylinder's natural oscillation frequency the synchronization breaks down, and then two-frequency oscillations (beats) occur.
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DOI:
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发表时间:
1997
期刊:
影响因子:
--
作者:
P. Landa
通讯作者:
P. Landa
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
I. Neĭmark;P. Landa
通讯作者:
P. Landa
DOI:
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发表时间:
1996
期刊:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子:
--
作者:
Landa;Zaikin
通讯作者:
Zaikin
DOI:
--
发表时间:
1965
期刊:
--
影响因子:
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作者:
Ia. G. Panovko;I. I. Gubanova-I.
通讯作者:
Ia. G. Panovko;I. I. Gubanova-I.
DOI:
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发表时间:
1973
期刊:
影响因子:
--
作者:
L. Ericsson;J. Reding
通讯作者:
J. Reding