PROPELLER BLADE VARIATION EXPERIMENTS
Abstract
An experimental program was carried out to determine the mode shapes and frequencies of a model of a typical naval propeller. The purpose of this program is to make available detailed relevant data to be used for evaluating the results of a parallel theoretical and numerical program of vibration and stress analysis of practical naval propellers. Tests carried out with both piezoelectric and capacitance probes gave practically identical results which indicated the necessity of further extension of the numerical program, and, in particular, a large increase in the number of degrees of freedom used. It was also noted that interblade coupling through the hub produces a splitting of the single blade frequencies into several frequencies (theoretically four) with a maximum separation (in air) of about 10%. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1961
- Accession Number
- AD0264684
Entities
People
- J. Tamagno
- S. Slutsky