An enhanced mode shape identification algorithmA mode shape identification algorithm is developed which is characterized by a low sensitivity to measurement noise and a high accuracy of mode identification. The algorithm proposed here is also capable of identifying the mode shapes of structures with significant damping. The combined results indicate that mode shape identification is much more dependent on measurement noise than identification of natural frequencies. Accurate detection of modal parameters and mode shapes is demonstrated for modes with damping ratios exceeding 15 percent.
Document ID
19890043359
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Roemer, Michael J. (State Univ. of New York Buffalo, NY, United States)
Mook, D. Joseph (New York, State University Buffalo, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Cybernetics
Report/Patent Number
AIAA PAPER 89-1245
Meeting Information
Meeting: AIAA, ASME, ASCE, AHS, and ASC, Structures, Structural Dynamics and Materials Conference