ADDED RESISTANCE, WAVE-INDUCED STEADY SWAY FORCE AND YAW MOMENT ON AN ADVANCING SHIP

Calculation formulae are derived for the steady component of the wave-induced sway force and yaw moment in addition to Maruo's added-resistance formula. Instead of the stationary-phase method, Parseval's theorem in the Fourier transform is effectively utilised in the principles of linear and angular momentum conservation. The only unknown in the formulae is the Kochin function. It is numerically evaluated by applying the unified slender-ship theory for the diffraction problem. A computational method for the added resistance and wave profile is presented, which is consistent and exact in the context of slender-ship theory. Numerical results are compared with experiments of a Wigley model at Froude number 0.2 for the added resistance, Kochin function, and scattered-wave profile in head waves.

• Supplemental Notes:
  • Ship Technology Res, v 39 n 1, Feb 1992, p 3 [14 p, 11 ref, 11 fig]
• Authors:
  • Kashiwagi, M
• Publication Date: 1992

Language

• English

Subject/Index Terms

• TRT Terms: Seakeeping; Ships; Yaw
• Old TRIS Terms: Added resistance in waves; Thin ship theory
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00702412
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM