CLOSED-LOOP STABILITY OF A WINGED-PAYLOAD BOOSTER SUBJECT TO VARIATIONS OF AN ELASTIC MODE SHAPE.
Abstract
The analysis is concerned with the effect of the variations in first bending mode shape on the stability of a booster with a simple rate and attitude feedback control system. It is found that the system stability is still sensitive to small mode shape variations when elastic and short-period frequencies are close, but not to as great an extent as was the forward-loop system alone. The elastic mode and closed-loop short-period frequencies are relatively insensitive to the mode shape variations. However, the damping of the two modes is quite sensitive. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1962
- Accession Number
- AD0608848
Entities
People
- Robert L. Swaim
Organizations
- Flight Dynamics Laboratory