NDLI: Active Sloshing Control by Using Movable Plates Device Based on Flow Control Method

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Hara, Kensuke Watanabe, Masahiro Hirai, Kazuki
Copyright Year	2009
Abstract	This paper deals with an experimental study of an active control technique for the suppression of sloshing based on flow control in the tank. In this paper, we proposed the active feedback control method by using movable plates which are set in liquid. In the experiment, the present method is applied to the 2-dimensional problem of sloshing which occurs in the rectangular tank due to a horizontal excitation. The sloshing are suppressed by the active feedback to the rotation of the movable plate installed in liquid. The suppression performances are examined by changing the phase difference between the control signal of rotation angles of the movable plate and the liquid surface displacement (phase-shift). The performance of proposed method is evaluated by the time history, the root mean square value and frequency-response of the surface wave displacement under the active feedback control. Moreover, the effects of movable plate number and installation position on the suppression performance are clarified. On the other hand, the visualization experiment is conducted to obtain the flow pattern in the tank when the sloshing is controlled by the present method. The decreasing mechanism of the surface wave is discussed by the result of the visualization experiment. As a result, it is shown that the proposed control devics and active control method suppress the sloshing effectively. Furthermore, it is found that the changes of flow pattern by the drive of movable plate cause the suppression of sloshing in the visualization experiment.
Sponsorship	Pressure Vessels and Piping
Starting Page	333
Ending Page	340
Page Count	8
File Format	PDF
ISBN	9780791843673
DOI	10.1115/PVP2009-77665
e-ISBN	9780791838549
Volume Number	Volume 4: Fluid-Structure Interaction
Conference Proceedings	ASME 2009 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2009-07-26
Publisher Place	Prague, Czech Republic
Access Restriction	Subscribed
Subject Keyword	Visualization Surface waves (fluid) Phase shift Sloshing Flow (dynamics) Rotation Displacement Feedback Flow control Plates (structures) Frequency response Excitation Signals
Content Type	Text
Resource Type	Article

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