Uncertainty propagation of frequency response functions using a multi-output Gaussian Process model

2019 ◽  
Vol 217 ◽  
pp. 1-17 ◽  
Author(s):  
Jun Lu ◽  
Zhenfei Zhan ◽  
Daniel W. Apley ◽  
Wei Chen
Keyword(s):  
Gaussian Process ◽  
Frequency Response ◽  
Process Model ◽  
Uncertainty Propagation ◽  
Response Functions ◽  
Frequency Response Functions ◽  
Gaussian Process Model

Gaussian process regression for the estimation of generalized frequency response functions

Automatica ◽  
2019 ◽  
Vol 106 ◽  
pp. 161-167
Author(s):  
Jeremy G. Stoddard ◽  
Georgios Birpoutsoukis ◽  
Johan Schoukens ◽  
James S. Welsh
Keyword(s):  
Gaussian Process ◽  
Frequency Response ◽  
Gaussian Process Regression ◽  
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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