2015 Fiscal Year Final Research Report
Development of wind tunnel for spinning body using magnetic suspension
| Project/Area Number |
25289048
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Saitama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HIRAHARA Hiroyuki 埼玉大学, 大学院理工学研究科, 教授 (20201733)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKASAKI Masaya 埼玉大学, 大学院理工学研究科, 教授 (10333486)
ISHINO Yuji 埼玉大学, 総合研究機構, 技師 (50645968)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 磁気浮上 / 風洞 / 回転球体 / 磁気軸受 / スポーツ工学 |
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| Outline of Final Research Achievements |
A new wind-tunnel system for spinning body such as golf ball was developed to measure hydrodynamic forces acting on the body and observe phenomena around the body continuously and accurately. It was characterized by using magnetic suspension for the noncontact support and rotation of the body. In the newly developed system, the test section area was approximately three times that of the conventional system. A mathematical model for the system was derived based on predictions by magnetic fields analysis and measured characteristics. Stable noncontact suspension and rotation of the body were achieved in the developed system. Then wind tunnel tests were carried out. In addition, flux-path magnetic suspension systems using flux concentration and a self-spinning floator were fabricated to realize larger-size wind tunnel systems without much increase of the consumed electrical power in future.
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| Free Research Field |
制御工学・メカトロニクス
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