In this paper, a novel boundary control method is investigated to suppress the vertical vibration of a very large floating structure (VLFS) with regular waves. The VLFS can be described as a distributed parameter system with partial differential equation (PDE). The proposed boundary controllers are developed based on Lyapunov's direct method to act on the upstream and downstream ends of the VLFS, respectively. Along with the suitable choice of control parameters, the proposed controllers could stabilize the vertical vibration of the VLFS subjected to regular waves. This study verifies the effectiveness of the proposed control methods to the VLFS. Then, the effects of wave amplitude and bending rigidity on the hydroelastic response of the VLFS are investigated.
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April 2016
Research-Article
Active Control of a Very Large Floating Beam Structure
Jia Sheng Yang,
Jia Sheng Yang
Center of Maritime Studies,
National University of Singapore,
118414, Singapore
e-mail: cmsyngj@nus.edu.sg
National University of Singapore,
118414, Singapore
e-mail: cmsyngj@nus.edu.sg
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Rui Ping Gao
Rui Ping Gao
Department of Civil and Environmental Engineering,
National University of Singapore,
117576, Singapore
e-mail: gaoruiping@nus.edu.sg
National University of Singapore,
117576, Singapore
e-mail: gaoruiping@nus.edu.sg
Search for other works by this author on:
Jia Sheng Yang
Center of Maritime Studies,
National University of Singapore,
118414, Singapore
e-mail: cmsyngj@nus.edu.sg
National University of Singapore,
118414, Singapore
e-mail: cmsyngj@nus.edu.sg
Rui Ping Gao
Department of Civil and Environmental Engineering,
National University of Singapore,
117576, Singapore
e-mail: gaoruiping@nus.edu.sg
National University of Singapore,
117576, Singapore
e-mail: gaoruiping@nus.edu.sg
1Corresponding author.
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received July 27, 2015; final manuscript received November 15, 2015; published online January 21, 2016. Assoc. Editor: Walter Lacarbonara.
J. Vib. Acoust. Apr 2016, 138(2): 021010 (7 pages)
Published Online: January 21, 2016
Article history
Received:
July 27, 2015
Revised:
November 15, 2015
Citation
Yang, J. S., and Gao, R. P. (January 21, 2016). "Active Control of a Very Large Floating Beam Structure." ASME. J. Vib. Acoust. April 2016; 138(2): 021010. https://doi.org/10.1115/1.4032039
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