ALIGNMENT BY MEANS OF AN OPTICAL SYSTEM OF FOCUSSING AND A LASER-APPLICATIONS IN THE SHIPBUILDING INDUSTRY

In this paper, prepared at the Centro de Investigaciones Opticas in La Plata, Argentina, the Authors first give some general information on lasers and their application, and describe how a helium/neon laser (wave-length 632.8 nm; P = 2mW), in conjunction with a telescopic focussing system, can be used in the definition of straight lines and planes and their relationships. A description is then given of two actual applications of this technique to ships. The first, carried out at Buenos Aires, is the checking of the crankshaft alignment during in-situ repairs to the crankshaft journals of the 4,800-hp twelve-cylinder V-type main engine of a refrigerated ship. The second application, in the steering-gear room of a ship under construction in an Argentinian yard, consists of (a) the checking of the co-linearity between the axes of the top and bottom rudder-stock bearings, and (b) the checking for parallelism between the top bearing of the port rudder-stock and the top bearing of the starboard one. The methods used are described in detail, with explanatory diagrams and photographs.

  • Corporate Authors:

    Asociacion de Ingenieros Navales

    Apdo Correos 457
    Madrid,   Spain 
  • Authors:
    • Zerbino, L M
    • Rabal, H J
  • Publication Date: 1979-2

Language

  • Spanish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00308247
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Feb 27 1980 12:00AM