Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis
Author
Source
International Journal of Rotating Machinery
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-30
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Unsteady flow around an oscillating plate cascade and that through a single compressor rotor subject to vibration have been computationally studied, aimed at examining the predictive ability of two low fidelity frequency methods compared with a high fidelity time-domain solution method for aeroelasticity.
The computational solutions demonstrate the capabilities of the frequency domain methods compared with the nonlinear time-domain solution method in capturing small perturbations in the unsteady flow.
They also show the great advantage of significant CPU time saving by the frequency methods over the nonlinear time method.
Comparisons of two different frequency methods, nonlinear harmonic and phase solution method, show that these methods can produce different results due to the differences in numeric and physical conditioning.
The results obtained using phase solutions method are in better agreement with the nonlinear time-domain solution.
This is because the same numeric and physical conditioning are used in both the nonlinear time-domain method and phase solution frequency domain method.
American Psychological Association (APA)
Rahmati, M. T.. 2016. Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis. International Journal of Rotating Machinery،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1107018
Modern Language Association (MLA)
Rahmati, M. T.. Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis. International Journal of Rotating Machinery No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1107018
American Medical Association (AMA)
Rahmati, M. T.. Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis. International Journal of Rotating Machinery. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1107018
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107018