DESIGN PRACTICES FOR POWERING PREDICTIONS

This work reviews the current procedures, margins, allowances, etc., in light of the most recent literature and documents the design practice procedures for powering predictions in a form suitable for preparing NAVSEC technical practice. This work presents a general discussion of the practice in use for the estimation of powering performance during the various phases of design, the fundamentals of extrapolating model resistance data up to an estimate of the fullscale ship resistance, the techniques for estimating residuary resistance, appendage resistance, wind drag, power margins, and shaft power, the techniques for estimating the effects of design alterations and the various aspects of rough water performance. Some supplementary information on the correlation allowance and the interaction coefficients has been included as appendices. (Author)

• Corporate Authors:

  David Taylor Naval Ship R&D Center

  Ship Performance Department
  Bethesda, MD  United States  20084
• Authors:
  • Grant, J W
  • Wilson, C J
• Publication Date: 1976-10

Media Info

• Pagination: 129 p.

Subject/Index Terms

• TRT Terms: Cavitation; Design; Design standards; Drag; Drag forces; Energy consumption; Estimates; Extrapolation; Fluid resistance; Forecasting; Hulls; Marine diesel engines; Performance; Propellers; Roughness; Ship motion; Ships; Specifications; Structural models; Vehicle design; Water; Wind
• Uncontrolled Terms: Hull resistance; Model tests; Ship design; Ship models
• Old TRIS Terms: Marine propellers; Marine propulsion; Performance engineering; Power engineering; Power prediction
• Subject Areas: Bridges and other structures; Design; Energy; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00151638
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SPD-693-01 Final Rpt.
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM