This paper describes a self-excited vibration of a Flow Dynamic Conveyer (FDC). The FDC is often used in power plants and in iron works because of superiority in noise control compared with a roller type conveyer. The FDC consists of a trough and a belt, and the air is supplied from many holes provided on the trough. A large vibration suddenly occurs when the flow rate becomes the critical value. In this paper, some measurements were performed in order to clarify the phenomenon. As a result, it was found that the phenomenon was the self-excited vibration based on the interference between two vibration systems such as the load • air-spring system and the trough • supporting system.
On Abnormal Vibration Generated in Flow Dynamic Conveyer: Understanding of Phenomenon
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Ishihara, K. "On Abnormal Vibration Generated in Flow Dynamic Conveyer: Understanding of Phenomenon." Proceedings of the ASME 2007 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. San Antonio, Texas, USA. July 22–26, 2007. pp. 337-343. ASME. https://doi.org/10.1115/PVP2007-26131
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