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On Travelling Wave Modes of Axially Moving String and Beam
Joint Authors
Zhang, Wei
Yang, Xiao-Dong
Lu, Lei
Lai, Siu-Kai
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-12
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The traditional vibrational standing-wave modes of beams and strings show static overall contour with finite number of fixed nodes.
The travelling wave modes are investigated in this study of axially moving string and beam although the solutions have been obtained in the literature.
The travelling wave modes show time-varying contour instead of static contour.
In the model of an axially moving string, only backward travelling wave modes are found and verified by experiments.
Although there are n − 1 fixed nodes in the nth order mode, similar to the vibration of traditional static strings, the presence of travelling wave phenomenon is still spotted between any two adjacent nodes.
In contrast to the stationary nodes of string modes, the occurrence of galloping nodes of axially moving beams is discovered: the nodes oscillate periodically during modal motions.
Both forward and backward travelling wave phenomena are detected for the axially moving beam case.
It is found that the ranges of forward travelling wave modes increase with the axially moving speed.
It is also concluded that backward travelling wave modes can transform to the forward travelling wave modes as the transport speed surpasses the buckling critical speed.
American Psychological Association (APA)
Lu, Lei& Yang, Xiao-Dong& Zhang, Wei& Lai, Siu-Kai. 2019. On Travelling Wave Modes of Axially Moving String and Beam. Shock and Vibration،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1211716
Modern Language Association (MLA)
Lu, Lei…[et al.]. On Travelling Wave Modes of Axially Moving String and Beam. Shock and Vibration No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1211716
American Medical Association (AMA)
Lu, Lei& Yang, Xiao-Dong& Zhang, Wei& Lai, Siu-Kai. On Travelling Wave Modes of Axially Moving String and Beam. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1211716
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211716