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On sine dwell or broadband methods for modal testingFor large, complex spacecraft structural systems, the objectives of the modal test are outlined. Based on these objectives, the comparison criteria for the modal test methods, namely, the broadband excitation and the sine dwell methods are established. Using the Galileo spacecraft modal test and the Centaur G Prime upper stage vehicle modal test as examples, the relative advantages or disadvantages of each method are examined. The usefulness or shortcoming of the methods are given from a practicing engineer's view point.
Document ID
19870046478
Document Type
Conference Paper
Authors
Chen, Jay-Chung (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wada, Ben K. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
GROUND SUPPORT SYSTEMS AND FACILITIES (SPACE)
Report/Patent Number
AIAA PAPER 87-0961
Funding Number(s)
CONTRACT_GRANT: NAS7-918
Distribution Limits
Public
Copyright
Other