Structural damage diagnosis using frequency response functions and orthogonal matching pursuit: theoretical development

2014 ◽  
Vol 22 (6) ◽  
pp. 889-902 ◽  
Author(s):  
Ryan J. Link ◽  
David C. Zimmerman
Keyword(s):  
Frequency Response ◽  
Structural Damage ◽  
Matching Pursuit ◽  
Orthogonal Matching Pursuit ◽  
Theoretical Development ◽  
Response Functions ◽  
Damage Diagnosis ◽  
Frequency Response Functions

DETECTING STRUCTURAL DAMAGE USING FREQUENCY RESPONSE FUNCTIONS

1998 ◽  
Vol 210 (1) ◽  
pp. 162-170 ◽  
Author(s):  
S.K. Thyagarajan ◽  
M.J. Schulz ◽  
P.F. Pai ◽  
J. Chung
Keyword(s):  
Frequency Response ◽  
Structural Damage ◽  
Response Functions ◽  
Frequency Response Functions

scholarly journals Identification of relevant acoustic transfer paths for WT drivetrains with an operational transfer path analysis

2021 ◽  
Author(s):  
W. Schünemann ◽  
R. Schelenz ◽  
G. Jacobs ◽  
W. Vocaet
Keyword(s):  
Path Analysis ◽  
Wind Turbine ◽  
Frequency Response ◽  
Mechanical System ◽  
Reference Point ◽  
Response Functions ◽  
Frequency Response Functions ◽  
Transfer Path ◽  
Transfer Path Analysis ◽  
Turbine Model

AbstractThe aim of a transfer path analysis (TPA) is to view the transmission of vibrations in a mechanical system from the point of excitation over interface points to a reference point. For that matter, the Frequency Response Functions (FRF) of a system or the Transmissibility Matrix is determined and examined in conjunction with the interface forces at the transfer path. This paper will cover the application of an operational TPA for a wind turbine model. In doing so the path contribution of relevant transfer paths are made visible and can be optimized individually.

Calculation of Component Mode Synthesis Matrices From Measured Frequency Response Functions, Part 2: Application

1998 ◽  
Vol 120 (2) ◽  
pp. 509-516 ◽  
Author(s):  
J. A. Morgan ◽  
C. Pierre ◽  
G. M. Hulbert
Keyword(s):  
Frequency Response ◽  
Coupled System ◽  
Companion Paper ◽  
Component Mode Synthesis ◽  
Response Functions ◽  
Frequency Response Functions ◽  
Measured Frequency ◽  
Measured Frequency Response ◽  
Coupled Beams ◽  
The Individual

This paper demonstrates how to calculate Craig-Bampton component mode synthesis matrices from measured frequency response functions. The procedure is based on a modified residual flexibility method, from which the Craig-Bampton CMS matrices are recovered, as presented in the companion paper, Part I (Morgan et al., 1998). A system of two coupled beams is analyzed using the experimentally-based method. The individual beams’ CMS matrices are calculated from measured frequency response functions. Then, the two beams are analytically coupled together using the test-derived matrices. Good agreement is obtained between the coupled system and the measured results.

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