Estimation of the Hydrodynamics Coefficients of an ROV using Free Decay Pendulum Motion

نویسندگان

  • Y. H. Eng
  • Michael Wai Shing Lau
  • Eicher Low
  • Gerald Seet
  • C. S. Chin
چکیده

good dynamics model is essential and critical for the successful design of navigation and control system of an underwater vehicle. However, it is difficult to determine the hydro-dynamics forces, especially the added mass and the drag coefficients. In this paper, a new experimental method has been used to find the hydrodynamics forces for the ROV II, a remotely operated underwater vehicle. The proposed method is based on the classical free decay test, but with the spring oscillation replaced by a pendulum motion. The experiment results determined from the free decay test of a scaled model compared well with the simulation results obtained from well-established computational fluid dynamics (CFD) program. Thus, the proposed approach can be used to find the added mass and drag coefficients for other underwater vehicles.

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عنوان ژورنال:
  • Engineering Letters

دوره 16  شماره 

صفحات  -

تاریخ انتشار 2008