OUTPUT-ONLY MODAL ANALYSIS OF AN ELECTRICAL SUBMERSIBLE PUMP USING TIME AND FREQUENCY DOMAIN TECHNIQUES

Author(s):  
Jairo Alvaro C. Huamani ◽  
Ulisses A. Monteiro ◽  
Ricardo H.R. Gutiérrez ◽  
Antonio Carlos Ramos Troyman ◽  
Luiz A. Vaz
2012 ◽  
Vol 19 (5) ◽  
pp. 1071-1083 ◽  
Author(s):  
Christof Devriendt ◽  
Tim De Troyer ◽  
Gert De Sitter ◽  
Patrick Guillaume

During the recent years several new tools have been introduced by the Vrije Universiteit Brussel in the field of Operational Modal Analysis (OMA) such as the transmissibility based approach and the the frequency-domain OMAX concept. One advantage of the transmissibility based approach is that the ambient forces may be coloured (non-white), if they are fully correlated. The main advantage of the OMAX concept is the fact that it combines the advantages of Operational and Experimental Modal Analysis: ambient (unknown) forces as well as artificial (known) forces are processed simultaneously resulting in improved modal parameters. In this paper, the transmissibility based output-only approach is combined with the input/output OMAX concept. This results in a new methodology in the field of operational modal analysis allowing the estimation of (scaled) modal parameters in the presence of arbitrary ambient (unknown) forces and artificial (known) forces.


2020 ◽  
Vol 313 ◽  
pp. 00003
Author(s):  
Ján Kortiš ◽  
Lukáš Maliar ◽  
Ľuboš Daniel

Non-destructive methods of structural testing are preferred to identify their current state because they do not damage the structure. Modal analysis is one of these methods that can be used for a comprehensive assessment of structural measurements. Its main advantage is that it can be used for variety applications. The paper presents an application of operational modal analysis to determine modal parameters of a laboratory steel truss structure. Its goal is to make contribution to the still unfinished development of modal analysis in the area of comprehensive application. There is important to try to use it and especially try to derive some basic generally applicable rules. It is an important step for experimental modal analysis before it can be widely used and accepted in engineering applications.


2019 ◽  
Vol 10 ◽  
pp. 82-86
Author(s):  
A.N. Ivanov ◽  
◽  
V.A. Bondarenko ◽  
M.M. Veliev ◽  
E.V. Kudin ◽  
...  

2021 ◽  
Vol 229 ◽  
pp. 108975
Author(s):  
R.H.R. Gutiérrez ◽  
U.A. Monteiro ◽  
C.O. Mendonça

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