Application of Control Rods for Passively Suppressing Cross-Flow VIV of an Inclined Flexible Cylinder
Joint Authors
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-05
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Laboratory experiments were conducted to investigate the cross-flow (CF) vortex-induced vibration (VIV) suppression effectiveness of an inclined flexible cylinder by using control rods.
4 control rods with a diameter of 0.25D (where D is the diameter of the main cylinder) and outer wall distance between the control rod and the main cylinder of 0.50D were attached to the main cylinder.
The uniform flow was simulated by towing the cylinder models along a water tank.
The corresponding flow velocity ranged from 0.05 to 1.00 m/s with an interval of 0.05 m/s.
Two inclination angle cases (a = 0° and 45°) were selected in the experiment.
The inclination angle a referred to the angle between the main cylinder axis and the plane orthogonal to the oncoming flow.
The experimental results indicate that the control rods can effectively mitigate the CF VIV responses, such as the bending strain, displacement amplitude, dominant frequency, and dominant mode, of both the vertical (a = 0°) and inclined (a = 45°) flexible cylinders.
The suppression effectiveness of the control rods on the 45° inclined cylinder is as good as that on the vertical cylinder, and the average suppressing efficiency of the control rods is even better on the 45° inclined cylinder.
American Psychological Association (APA)
Xu, Wanhai& Qin, Wenqi& Lu, Yan. 2018. Application of Control Rods for Passively Suppressing Cross-Flow VIV of an Inclined Flexible Cylinder. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215488
Modern Language Association (MLA)
Xu, Wanhai…[et al.]. Application of Control Rods for Passively Suppressing Cross-Flow VIV of an Inclined Flexible Cylinder. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215488
American Medical Association (AMA)
Xu, Wanhai& Qin, Wenqi& Lu, Yan. Application of Control Rods for Passively Suppressing Cross-Flow VIV of an Inclined Flexible Cylinder. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215488
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215488