AN ALTERNATE APPROACH TO THE MANUFACTURE OF SHIP PROPELLERS

Present propeller manufacturing processes define the propeller geometry in terms of blade sections at given blade radii. This definition of propeller geometry is used since it is consistent with the propeller definition as specified on a typical propeller drawing and as given by the propeller designer based on hydrodynamic considerations. Hence, the entire manufacture, checking and repair of the propeller is based upon setting up and monitoring the blade surface contours at specified blade radii. Considering the geometry of modern ship propellers with airfoil type sections, varying pitch lines, and varying degrees of rake and skew, the use of blade radii in defining blade geometry for manufacturing purposes has become a rather burdensome and perhaps costly concept which the propeller manufacturer has been forced to accept. The purpose of this paper is to develop an alternate method of defining the propeller blade geometry which may enable the propeller manufacturer to produce an inherently more accurate propeller and at the same time reduce the costs associated with the manufacture of ship propellers.

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Civil Engineering, 77 Massachusetts Avenue
    Cambridge, MA  USA  02139
  • Authors:
    • Derin, S
  • Publication Date: 1976-2

Subject/Index Terms

Filing Info

  • Accession Number: 00131214
  • Record Type: Publication
  • Source Agency: Massachusetts Institute of Technology
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM