EXPERIMENTAL VERIFICATION OF FINITE ELEMENT ANALYSIS OF PROPELLER STRENGTH

Propeller strength analysis and prediction methods were investigated. The primary tool was the finite element technique. More specifically, the thin shell approximation was adopted and modeled by a commercially available (MARC-CDC) program. To verify that the program was performing correctly, holographic, strain gage, and stress coat experiments were performed on model and full-size propellers. Static loads were applied and measured together with displacements, strains and stresses. Comparison of the results of the numerical (EEM) solutions to the experimental results shows that this method is highly reliable. The experimental results also show patterns in the behavior of the blade which can guide the formulation of a design tool for the strength analysis of a propeller without recourse to the finite element analysis (except at the end of the design, as a final check). Instead, a modified beam theory, based on observed patterns, can guide the designer to optimum design shape for hydrodynamics and strength.

  • Supplemental Notes:
    • Paper presented at Propellers 75, Philadelphia, Pa., July 22-23, 1975.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Genalis, P
  • Publication Date: 1975-7

Media Info

  • Features: References;
  • Pagination: 19 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00099342
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Report/Paper Numbers: #2
  • Files: TRIS
  • Created Date: Sep 30 1975 12:00AM