HOLOGRAPHIC DISPLACEMENT MEASUREMENTS ON A HIGHLY SKEWED PROPELLER BLADE

Static deflections were measured on a highly skewed marine propeller blade model using holographic interferometry. A specially designed pressure chamber was used to load the blade model under uniform air pressure from one side. The method that was used to predict the three-dimensional displacements from the holographic fringes is developed and described in the appendix. The holographic displacement results indicated a favorable correlation with those from a finite element analysis. It was found that the deflection response of this blade cannot be adequately predicted by the conventional method using cantilever idealization.

• Corporate Authors:

  Naval Ship Research and Development Center

  Structures Department
  Bethesda, MD  United States  20034
• Authors:
  • Dhir, S K
  • Sikora, J P
• Publication Date: 1971-8

Media Info

• Features: References;
• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Finite element method; Holography; Propeller blades; Propellers; Static loads
• Old TRIS Terms: Skewed propellers; Static loading
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00032633
• Record Type: Publication
• Source Agency: Ship Structure Committee
• Report/Paper Numbers: Report 3680
• Files: TRIS
• Created Date: Apr 21 1973 12:00AM