Deflection of rotating marine propellers using projected-grating moiré techniques
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A projected-linear-grating moiré technique has been developed to determine the feasibility of studying the behavior of model marine propeliers rotating in a variable-pressure water tunnel. Full-field deflections were determined from photographs of moiré interference fringes on the propeller roating at speeds up to 2000 rpm.
KeywordsMechanical Engineer Fluid Dynamics Interference Fringe Water Tunnel Marine Propeller
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- 2.Sikora, J.P., “Structural Analysis of Propellers Rotating Under Water Using Holography,” Proceedings of the SNAME Symposium-Propellers ′75, Philadelphia, PA (1976).Google Scholar
- 3.Luxmoore, A.R., “The Moiré Effect Applied to Experimental Stress Analysis,” Strain,5 (3 (1969).Google Scholar
- 4.Hovanesian Der, J., and Hung, Y.Y., “Moiré Contour-Sum Contour-Difference, and Vibration Analysis of Arbitrary Objects,” Applied Optics,10 (12) (1971).Google Scholar
- 5.Hovanesian Der, J., Haskell, R.E. and Powell, R.L., “Use of a Projected-Ruling Moiré Method for Vibration and Deflection Measurements of Three-Dimensional Structures,” Proceedings of the Symposium-Engineering Applications of Holography, Los Angeles, CA (1972).Google Scholar
- 6.Wasowski, J.J., “Moiré Surface Contouring by Addition Method,” Proceedings of the Sixth International Conference on Experimental Stress Analysis, Munich, W. German (1978).Google Scholar
- 7.Khetan, R.P. and Chiang, F.P., “A General Analysis of Projection Moiré Method,” Proceedings of the 15th Midwestern Mechanics Conference, Univ. of Illinois (1977).Google Scholar