Journal of Ship and Ocean Technology

The Society of Naval Architects of Korea (대한조선학회)
권호 표지

Adaptive Re-reflecting Wave Control in Plunger Type Wave Maker System: Theory

  • Park, Jae-Woong (Shipbuilding/plant Research Institute, Samsung Heavy Industries) ;
  • Lee, Jin-Ho (Shipbuilding/plant Research Institute, Samsung Heavy Industries) ;
  • Park, Gun-Il (Shipbuilding/plant Research Institute, Samsung Heavy Industries) ;
  • Kim, Ki-Jung (Shipbuilding/plant Research Institute, Samsung Heavy Industries)
  • Published : 2002.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

Active control has been partly applied to suppress the re-reflecting waves in wave basin with plunger-type wave maker to obtain desirable waves. This limitation comes from the non-confirmable theoretical background to the control algorithm. This paper proposes control logic to overcome this drawback, based on the impulse response function for propagating waves between control input and the wave height. The performances have been verified as reasonable in practical application by comparing with the propagating wave components in numerical wave basin, using wave decomposition method. Moreover, the control logic can also give useful wave-absorbing performance after cessation of wave generation.

Keywords

References

  1. HIRAKUCHI, H., KAJIMA, R. AND KAWAGUCHI, T. 1990 Application of a piston-type absorbing wave maker to irregular wave experiments. Coastal Engineering in Japan, 33, 1, pp. 11-23
  2. LEE, J.H. AND CHUN, H.H. 2000 Numerical Simulation of Unsteady Inviscid Waves by Spectral Method. Proc. of the Society of Ocean Engineering of Korea, May, pp. 140-145
  3. LEE, J.H., PARK, G.I. AND HA, M.K. 2000 Certification of Pneumatic Absorbing Wave Maker based on Numerical Wave Tank. Proc. of the Society of Naval Architects of Korea, Nov., p. 9
  4. NAITO, S., NAKAMURA, S. AND FURUKAWA, H. 1984 Wave Energy Absorption Of Irregular Waves. J. of the Kansai Society of Naval Architects, 194, Sep., pp. 25-31
  5. NAITO, S., HUANG J. AND NAKAMURA S. 1987 Research on Perfect Absorption of Regular Wave with the Terminal Device. J. of the Kansai Society of Naval Architects, 205, May., pp. 29-36
  6. NAITO, S., HUANG J. AND NAKAMURA S. 1989 Research on the Absorb-Making of Irregular Waves with the Terminal Device. J. of the Kansai Society of Naval Architects, 207, Dec., pp. 25-32
  7. NELSON, P.A. AND ELLIOT, S.J. 1992 Active Control of Sound. Academic Press SEYBERT, A.F. 1988 Two-Sensor Method for the Measurement of Sound Intensity and Acoustic Properties in Ducts. J. Acoust. Soc. Am., 83, 6, pp. 22-33