NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A study of the effects of disk flexibility on the rotordynamics of the space shuttle main engine turbo-pumpsRotor dynamical analyses are typically performed using rigid disk models. Studies of rotor models in which the effects of disk flexibility were included indicate that is may be an important effect for many systems. This issue is addressed with respect to the Space Shuttle Main Engine high pressure turbo-pumps. Finite element analyses have been performed for a simplified free-free flexible disk rotor model and the modes and frequencies compared to those of a rigid disk model. The simple model was then extended to a more sophisticated HPTOP rotor model and similar results were observed. Equations were developed that are suitable for modifying the current rotordynamical analysis program to account for disk flexibility. Some conclusions are drawn from the results of this work as to the importance of disk flexibility on the HPTOP rotordynamics and some recommendations are given for follow-up research in this area.
Document ID
19900010085
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Flowers, George T.
(University of Central Florida Orlando, FL, United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Alabama Univ., Research Reports: 1989 NASA(ASEE Summer Faculty Fellowship Program
Subject Category
Mechanical Engineering
Accession Number
90N19401
Funding Number(s)
CONTRACT_GRANT: NGT-01-008-021
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available