Vibrations due to Flow-Driven Repeated Impacts
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-26
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
We consider a two-degree-of-freedom model where the focus is on analyzing the vibrations of a fixed but flexible structure that is struck repeatedly by a second object.
The repetitive impacts due to the second mass are driven by a flowing fluid.
Morison’s equation is used to model the effect of the fluid on the properties of the structure.
The model is developed based on both linearized and quadratic fluid drag forces, both of which are analyzed analytically and simulated numerically.
Conservation of linear momentum and the coefficient of restitution are used to characterize the nature of the impacts between the two masses.
A resonance condition of the model is analyzed with a Fourier transform.
This model is proposed to explain the nature of ice-induced vibrations, without the need for a model of the ice-failure mechanism.
The predictions of the model are compared to ice-induced vibrations data that are available in the open literature and found to be in good agreement.
Therefore, the use of a repetitive impact model that does not require modeling the ice-failure mechanism can be used to explain some of the observed behavior of ice-induced vibrations.
American Psychological Association (APA)
Jeong, Sumin& Baddour, Natalie. 2013. Vibrations due to Flow-Driven Repeated Impacts. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-17.
https://search.emarefa.net/detail/BIM-1010661
Modern Language Association (MLA)
Jeong, Sumin& Baddour, Natalie. Vibrations due to Flow-Driven Repeated Impacts. Mathematical Problems in Engineering No. 2013 (2013), pp.1-17.
https://search.emarefa.net/detail/BIM-1010661
American Medical Association (AMA)
Jeong, Sumin& Baddour, Natalie. Vibrations due to Flow-Driven Repeated Impacts. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-17.
https://search.emarefa.net/detail/BIM-1010661
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1010661