THE EFFECT OF TURNING MANOEUVRES ON MACHINERY CONTROL STRATEGIES OF A MODERN WARSHIP

The interaction between the propeller and hull of a modern warship is particularly noticeable during turning manoeuvres. A computer model of a modern warship equipped with twin screw CRP propellers, twin engine powerplants and cross-connected gearbox has been developed. The model has been used to study the machinery dynamic behaviour during turning manoeuvres. Machinery operating modes included in the study were both unitised and cross-connected configurations. The influence of propeller cavitation, different propeller characteristics and hull characteristics were analysed during the course of the investigation. Results show that the torque loadings on the propulsion machinery increase as the turning manoeuvres become progressively more severe with increasing ship speed and higher rudder angles. These can be sufficiently severe as to affect the propulsion control strategy. The model has proven to be a very useful tool in developing an understanding of the propulsion drive train loads that result from complex hydrodynamic phenomena affecting a ship's hull during turning manoeuvres.

• Supplemental Notes:
  • Proc. 8th Ship Control Systems Symposium, The Hague, Netherlands, 6-9 Oct. 1987, Vol. 2, p. 147 [24 pp., 14 fig.]
• Authors:
  • Pagotto, I
  • Dupuis, R
• Publication Date: 1987

Language

• English

Subject/Index Terms

• TRT Terms: Military vessels
• Old TRIS Terms: Turning manoeuvres
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00693749
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM