Accession Number:

ADA273828

Title:

Modeling of a Large Undamped Space Structure Using Time Domain Techniques

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1993-12-01

Pagination or Media Count:

118.0

Abstract:

The first phase of this project was the selection of accurate time domain state space modeling techniques by comparing the models generated by various methods, against a known system. The techniques selected were the Eigensystem Realization Algorithm and the Backward Least Squares method. These modeling techniques were applied to the vibration data from the PACOSS dynamic test article. The resulting model transfer function was then compared to the frequency response function of the actual system, and was found to be an accurate match for the system poles, but not for the system zeros. Large Space structures, Dynamic Control, System Mode Structural vibration, Flexible Spacecraft, System Identification.

Subject Categories:

  • Numerical Mathematics
  • Theoretical Mathematics
  • Statistics and Probability
  • Operations Research
  • Test Facilities, Equipment and Methods
  • Mechanics
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE