2016 Fiscal Year Final Research Report
Development of magnetic actuator group capable of visual inspection of large structure such as cable-stayed bridges
| Project/Area Number |
26420393
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Tohoku Gakuin University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | アクチュエータ / 構造物検査 |
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| Outline of Final Research Achievements |
In this research, a magnetic actuator with a very simple structure capable of movement in the construction of large steel bridges, such as cable-stayed bridges was developed, and a new measurement system was constructed. The actuator was able to climb upward at 36 mm/s while pulling a load of 220 g when the input power was 200 mW. Also, the supporting part of the actuator was constructed to be rotatable with a universal type joint, and two SMA wires were attached. Electric current was applied into the SMA wire to cause contraction to correspond to reciprocating movement. Furthermore, by using a flexible silicone rubber material to connect in series with the moving direction of the actuator, the maximum traction force of the actuator group was 4.4 N. It was confirmed that this actuator system is able to inspect the appearance with only two amplifiers, one signal generator, a DC power supply, and a PC installed with software for video capture.
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| Free Research Field |
機械力学
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