Vibration control of a linear flexible beam structure excited by multiple harmonics
Author
Source
Journal of Engineering Research
Issue
Vol. 9, Issue 4 B (31 Dec. 2021), pp.410-427, 18 p.
Publisher
Kuwait University Academic Publication Council
Publication Date
2021-12-31
Country of Publication
Kuwait
No. of Pages
18
Main Subjects
Abstract EN
This paper deals with designing a control force to create nodal point(s) having zero displacement and/or zero slope at selected locations in a vibrating beam structure excited by multiple harmonic forces.
it is shown that the steady state vibrations at desired points can be eliminated using applied control forces.
the control forces design method is implemented using dynamic green’s functions that transform the equations of motion from differential to algebraic equations, in which the resulting solution is analytic and exact.
the control problem is greatly simplified by utilizing the superposition principle that leads to calculating the control forces to create node(s) for each excitation frequency independently.
the calculated control forces can be realized using passive elements such as masses and springs connected to the beam having reaction forces equal to the calculated control forces.
the effectiveness of the proposed method is demonstrated on various cases using numerical examples.
through examples, it was shown that creating node(s) with zero deflection, as well as zero slope, not only results in isolated stationary points, but also suppresses the vibrations along a wide region of the beam.
American Psychological Association (APA)
al-Bassam, Bassam A.. 2021. Vibration control of a linear flexible beam structure excited by multiple harmonics. Journal of Engineering Research،Vol. 9, no. 4 B, pp.410-427.
https://search.emarefa.net/detail/BIM-1494740
Modern Language Association (MLA)
al-Bassam, Bassam A.. Vibration control of a linear flexible beam structure excited by multiple harmonics. Journal of Engineering Research Vol. 9, no. 4 B (Dec. 2021), pp.410-427.
https://search.emarefa.net/detail/BIM-1494740
American Medical Association (AMA)
al-Bassam, Bassam A.. Vibration control of a linear flexible beam structure excited by multiple harmonics. Journal of Engineering Research. 2021. Vol. 9, no. 4 B, pp.410-427.
https://search.emarefa.net/detail/BIM-1494740
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 427
Record ID
BIM-1494740