Bladed Disk Dynamic Response.
Abstract
The feasibility of applying an optical derotator system to conduct dynamic structural analysis of a rotating/vibrating fully bladed gas turbine rotor assembly in a controlled spin pit facility was investigated. Interferometric holograms using pulsed laser holography were constructed for various assembly modes of vibration at assembly rotational velocities up to 835.6 rad/sec (8000 rpm). Results of this investigation are encouraging although a large bias fringe density resulting from a plexiglass panel in the optical train made definitive analysis of the resultant mode shapes difficult. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1979
- Accession Number
- ADA071975
Entities
People
- J. L. Bearden
Organizations
- Pratt & Whitney