Control of Fluid-Structure-Sound Interaction Mechanisms by Means of

Samir ZIADA

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Control of Fluid-Structure-Sound Interaction Mechanisms by Means of

机译：流体-结构-声音相互作用机理的有限元分析。

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The effectiveness of feedback control technique in suppressing flow-excited oscillations is illustrated by considering several examples of fluid-structure-sound interaction mechanisms. These include impinging flow oscillations, flow-excited acoustic resonance, vortex-induced lock-in vibration and turbulent buffeting vibration. The control actuator in all examples consists of a synthetic jet issuing from a narrow slit positioned at the location of flow separation. The synthetic jet is generated by loudspeakers, which are activated by the signal of a sensor monitoring the system response. Different types of controllers are used to properly adjust the phase and the gain of the speaker signal with respect to those of system response. Different sensors are also employed to investigate the effect of sensor type on the control performance. The developed technique proved to be very effective; reducing the oscillation amplitudes by amounts reaching 35 dB.

机译：通过考虑流体-结构-声音相互作用机理的几个例子，说明了反馈控制技术在抑制激流振荡中的有效性。这些包括撞击流动的振荡，流动激发的声共振，涡流引起的锁定振动和湍流抖振。在所有示例中，控制致动器均由合成射流组成，该合成射流是从位于流分离位置的窄缝发出的。合成射流由扬声器产生，扬声器由监视系统响应的传感器信号激活。相对于系统响应，使用不同类型的控制器来适当地调整扬声器信号的相位和增益。还采用了不同的传感器来研究传感器类型对控制性能的影响。事实证明，这种发达的技术非常有效。降低振幅达到35 dB。

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《JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing》 |2003年第3期|p.873-880|共8页
作者
Samir ZIADA;
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正文语种 eng
中图分类机械、仪表工业;机械学（机械设计基础理论）;
关键词
Feedback Control; Fluid-Structure Interaction; Flow-Acoustic Coupling; Global Flow Oscillations; Synthetic Jets; Flow Control; Control of Lock-in Vibration; Control of Acoustic Resonance;

机译：反馈控制;流体-结构相互作用;流-声耦合;整体流振荡;合成射流;流控制;锁定振动的控制;声共振的控制;

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1. Control of Fluid-Structure-Sound Interaction Mechanisms by Means of [J] . Samir ZIADA JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing . 2003,第3期

机译：流体-结构-声音相互作用机理的有限元分析。
2. Control of Fluid-Structure-Sound Interaction Mechanisms by Means of [J] . Samir ZIADA JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing . 2003,第3期

机译：流体-结构-声音相互作用机理的有限元分析。
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Control of Fluid-Structure-Sound Interaction Mechanisms by Means of

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