New Report: Alignment of Marine Propulsion Shafting Systems

Tuesday, February 20, 2007
The Society of Naval Architects and Marine Engineers released a 60-page technical bulletin Practices and Procedures for the Alignment of Marine Main Propulsion Shafting Systems. The bulletin was compiled by the Propulsion Shafting Panel, Panel M-16, of the Society's Technical and Research Program.

While industrial machinery is typically aligned so that the shafts of the driving and driven machines are collinear, this approach is not appropriate for marine main propulsion shafting because the bearings move as conditions change, and because the shafting is never really straight as it deflects under its own weight and the weight of the propeller and other attached components. Therefore, the vertical and athwartships positions of the bearings must be aligned so that the limits established to ensure proper system operation are not exceeded for all normal ship operating conditions. Ship operators including government agencies have expressed a need for a technical reference guide on the alignment of main propulsion shafting. This document is intended to provide these guidelines for personnel involved in the design, installation, operation, maintenance, and repair of ships. This guide provides a general overview of shaft alignment for the novice, and more detailed information for the expert.

This publication is identified as Technical and Research Bulletin 3-51. It is issued as a CD and may be ordered through the SNAME web site -- www.sname.org -- or by contacting Tommie-Anne Faix tfaix@sname.org for $50 ($25 for SNAME members) plus shipping.

Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Coast Guard

USCG in Search of Missing Man in Lake Michigan

The Coast Guard is searching for a man who went missing on Lake Michigan, Tuesday. Missing is 48-year-old Joseph Kiehm from Milwaukee. Kiehm was last seen aboard his 26-foot white sailboat,

Lake Charles Tugboat Engine Room Fire Extinguished

The Coast Guard informs that along with the Black Bayou Fire Department it has responded to a tugboat on fire near Lake Charles, Louisiana. At approximately 1:15 p.

Maritime Academy Awarded DHS Grant for Arctic Training

Maine Maritime Academy receives $450,000 grant From U.S. Department of Homeland Security for ice navigation and maritime first responder courses for the Arctic Maine

 
 
Maritime Contracts Maritime Security Naval Architecture Navigation Offshore Oil Salvage Ship Electronics Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1541 sec (6 req/sec)