Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow
The energy in flow induced motion (FIM) was harnessed in recent years. In this study, the energy transfer ratio was derived to estimate the energy transference from the flow to the FIM. Then the FIM characteristics and energy transference of cylinders with different cross sections were experimentall...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/4356367 |
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| author | Jijian Lian Xiang Yan Fang Liu Jun Zhang |
| author_facet | Jijian Lian Xiang Yan Fang Liu Jun Zhang |
| author_sort | Jijian Lian |
| collection | DOAJ |
| description | The energy in flow induced motion (FIM) was harnessed in recent years. In this study, the energy transfer ratio was derived to estimate the energy transference from the flow to the FIM. Then the FIM characteristics and energy transference of cylinders with different cross sections were experimentally investigated. The main findings are listed as follows. (a) Circular cylinders and diamond prisms both present a self-limited motion. The maximum amplitude ratio of circular cylinder is around 1~1.2 which is higher than that of diamond prism (0.4~0.5). (b) Triangle prisms and right square prisms present a self-unlimited motion. For triangle prism, amplitude ratio increases over 1.8; for right square prisms, amplitude ratio reaches 1.2. (c) The maximum transfer ratios of circular cylinder and triangle prism are 80% and 57%, respectively, which are much higher than those of other prisms, indicating that circular cylinder and triangle prism have better performances in energy transference. (d) The transfer ratio is strongly dependent on the damping and mass; higher damping or mass will promote a higher transfer ratio. (e) Beyond the critical transfer ratios, amplitude variation coefficients are around 10%~30% resulting in a better performance in stationarity. |
| format | Article |
| id | doaj-art-93de63b61fd44679b0211f0d2ac90220 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-93de63b61fd44679b0211f0d2ac902202025-08-20T02:10:11ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/43563674356367Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the FlowJijian Lian0Xiang Yan1Fang Liu2Jun Zhang3State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin 300072, ChinaThe energy in flow induced motion (FIM) was harnessed in recent years. In this study, the energy transfer ratio was derived to estimate the energy transference from the flow to the FIM. Then the FIM characteristics and energy transference of cylinders with different cross sections were experimentally investigated. The main findings are listed as follows. (a) Circular cylinders and diamond prisms both present a self-limited motion. The maximum amplitude ratio of circular cylinder is around 1~1.2 which is higher than that of diamond prism (0.4~0.5). (b) Triangle prisms and right square prisms present a self-unlimited motion. For triangle prism, amplitude ratio increases over 1.8; for right square prisms, amplitude ratio reaches 1.2. (c) The maximum transfer ratios of circular cylinder and triangle prism are 80% and 57%, respectively, which are much higher than those of other prisms, indicating that circular cylinder and triangle prism have better performances in energy transference. (d) The transfer ratio is strongly dependent on the damping and mass; higher damping or mass will promote a higher transfer ratio. (e) Beyond the critical transfer ratios, amplitude variation coefficients are around 10%~30% resulting in a better performance in stationarity.http://dx.doi.org/10.1155/2017/4356367 |
| spellingShingle | Jijian Lian Xiang Yan Fang Liu Jun Zhang Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow Shock and Vibration |
| title | Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow |
| title_full | Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow |
| title_fullStr | Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow |
| title_full_unstemmed | Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow |
| title_short | Analysis on Flow Induced Motion of Cylinders with Different Cross Sections and the Potential Capacity of Energy Transference from the Flow |
| title_sort | analysis on flow induced motion of cylinders with different cross sections and the potential capacity of energy transference from the flow |
| url | http://dx.doi.org/10.1155/2017/4356367 |
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