DIRECTIONAL STABILITY OF A SHIP ALLOWING FOR TIME HISTORY EFFECTS OF THE FLOW

By means of a functional analysis, the assumption of instantaneous fluid forces or (quasi-steady flow) may be relaxed. It is shown how time-history effects are incorporated into the hydrodynamic representation to determine the directional stability and control of a ship. A method of analysis is presented which indicates that the characteristic equation describing the directional stability may have more characteristic roots and more stability criteria than that which the usual 'instantaneous' theory predicts. By introducing a suitable feedback device this characteristic equation may be suitably modified to give the desired ship response.

• Corporate Authors:

  Royal Society of London

  6 Carleton House Terrace
  London SW1Y 5AG,   England 
• Authors:
  • Bishop, RED
  • Burcher, R K
  • Price, W G
• Publication Date: 1973-11

Media Info

• Features: References;
• Pagination: p. 341-354
• Serial:
  • Volume: 335
  • Issue Number: 1602

Subject/Index Terms

• TRT Terms: Directional stability; Maneuverability; Ship motion; Stability (Mechanics)
• Old TRIS Terms: Ship stability
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00051172
• Record Type: Publication
• Source Agency: Royal Society of London
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Feb 28 1974 12:00AM