Vibration stability of a cantilevered thin plate with inner fluid circulation
| Autor: | Yunjie Wang, Gangtie Zheng, Yajun Yin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Cantilever Mechanical Engineering Aerospace Engineering 02 engineering and technology Mechanics Fluid circulation Bending 01 natural sciences Stability (probability) Physics::Fluid Dynamics Vibration 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials 0103 physical sciences Automotive Engineering General Materials Science 010301 acoustics |
| Zdroj: | Journal of Vibration and Control. 28:837-852 |
| ISSN: | 1741-2986 1077-5463 |
| DOI: | 10.1177/1077546320985344 |
| Popis: | The vibration of a cantilevered thin plate with inner fluid circulation is a typical situation in engineering. The plate’s vibration can be considered a combination of bending motion and torsional motion. With the force generated by the inner fluid circulation on the plate, these two types of motion affect each other and raise the problem of stability. In the present study, the vibration stability of different vibrating pattern thus generated is investigated. It is found that with the increase of the flow velocity, torsional mode frequencies decrease synchronously, whereas their modal shapes remain unchanged, which results in the buckling of the plate. Under the circumstance of coupled vibration, because both bending and torsional modal frequencies vary with the flow velocity, a phenomenon of coupled-mode flutter occurs between a certain pair of modes with frequency orders of (2 k) and (2 k − 1) and vibration becomes unstable. |
| Databáze: | OpenAIRE |
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