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

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 over...

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Bibliographic Details
Main Authors: Lewis, Jack W., Schumacher, Keith B.
Other Authors: COAST GUARD WASHINGTON DC OFFICE OF ENGINEERING
Format: Text
Language:English
Published: 1968
Subjects:
Computer Programming and Software
Marine Engineering
Fluid Mechanics
Mechanics
*MARINE PROPELLERS
*ICEBREAKERS
MARINE PROPELLERS
LOAD DISTRIBUTION
COMPUTER PROGRAMS
ELECTRIC PROPULSION
TORQUE
DRIVE SHAFTS
ICE
SEA ICE
IMPACT SHOCK
FAILURE(MECHANICS)
HYDRODYNAMICS
FLOW CHARTING
MAGNETIC TAPE
COAST GUARD
FORTRAN
FORTRAN 4 PROGRAMMING LANGUAGE
Sea ice
Online Access:http://www.dtic.mil/docs/citations/AD0845520
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0845520
Description
Summary: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)

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