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Behavior of Flexible Hose Connected to Mother Ship

모함에 연결된 탄성 호스의 거동

  • Kim, Kun-Woo (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Lee, Jae-Wook (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Kim, Hyung-Ryul (Agency for Defense Development) ;
  • Yoo, Wan-Suk (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • An, Deuk-Man (School of Mechanical Engineering, Pusan Nat'l Univ.)
  • Received : 2010.06.15
  • Accepted : 2011.01.10
  • Published : 2011.03.01

Abstract

A flexible hose attached to a mother ship experiences various motions that depend on the movement of the mother ship and that of underwater vehicle. Although the motion of the hose is a very important factor that determines how a mother ship should be steered in a real situation, it is difficult to experimentally obtain information about the hose motion. Therefore, we study the motion of the hose analytically. The ANCF(absolute nodal coordinate formulation) was used to model the hose, because this formulation can relax the Euler-Bernoulli theory and the Timoshenko beam theory and allow the deformation of the cross section. The mother ship is assumed to be a rigid body with 6 degrees of freedom. The motion of the hose is predominantly affected by the behavior of the mother ship and by the fluid flow.

Keywords

Flexible Hose;Absolute Nodal Coordinate;Continuum Mechanics;Mother Ship

Acknowledgement

Supported by : 국방과학연구소

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