Ship Design and Maintenance Computer Program. Tork (Ice Load Torque Calculations),

Abstract

TORK calculates the propeller load torque values resulting from striking a block of ice with the propeller blades and the hydro-dynamic propeller load torques as a function of shaft and vessel speed. TORK studies the effects which various propeller properties have on the total load torque to be overcome by propulsion machinery as a function of propeller speed and ship speed. The properties considered are propeller diameter, pitch-diameter ratio, blade thickness, hub diameter, strength of ice in crushing and in shear, number of blades, developed area ratio and percent of blade striking ice. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 04, 1968
Accession Number
AD0845520

Entities

People

  • Jack W. Lewis
  • Keith B. Schumacher

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Blades
  • Computer Programs
  • Computers
  • Diameters
  • Engineering
  • Maintenance
  • Propeller Blades
  • Propellers
  • Ship Design
  • Thickness

Readers

  • Aerodynamics.
  • Polar and Arctic Studies