| Project/Area Number |
18500445
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Kobe Gakuin University |
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Principal Investigator |
TAKAMI Masatoshi Kobe Gakuin University, The Faculty of Rehabilitation, Professor (30341077)
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| Co-Investigator(Kenkyū-buntansha) |
KASUYA Saki Kobe Gakuin University, The Faculty of Rehabilitation, Lecturer (90411876)
KURODA Daijiro Kobe Gakuin University, The Faculty of Rehabilitation, Professor (50309663)
OKU Hidehisa Kobe Gakuin University, The Faculty of Rehabilitation, Professor (30248207)
YONEDA Ikuo Toyo University, Faculty of Human Life Design, Professor (50426540)
HASHIZUME Tsutomu Hyogo Assistive Technology Research and Design Institute, Research Unit 3, Manager, Senior researcher (00435900)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥3,960,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2006: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | Wheelchair / Running characteristics / Whole-body vibration / Driving torque / Dummy / Assistive Technology / Road surface / Measurement |
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| Research Abstract |
A new wheelchair for running characteristic measurements was developed and a dummy was ridden on this. This ran no person and measured a run characteristic on the road surface. We performed fundamental experiment and understood that vibration acceleration and driving torque played an important role in evaluation were. The whole-body vibration measured on the sheet of wheelchair and was calculated in actual value. The electric current of driving motor measured and converted it into torque.
It was confirmed that the validity of the dummy and inspected accuracy of the torque. We measured vibration successively on various mad surfaces and carried out outdoor investigation afterwards. The torque increased in proportion to the amount of step and the body weight. This torque related to a measurement value by the manual wheelchair and that is why we were able to confirm the possibility of the estimate of the driving torque. At the steady speed, the torque increased with speed value.
The quantity of the vibration increased with the height of the step and increase of the speed. As a mad surface became coarse, the vibration increased. A vertical component of vibration was the biggest, and the value became the value of 0.1- m/s2. In two kind of block for visually impairers, the vibration had a bigger time to cross the instruction block. In addition, the vibration becomes as big as body weight is little. It was become clear that the dummy equalizes weight and objectifies the evaluation of the road surface more. According to the sensuality investigation about road surface runs, the result of theses measurements will support the classification of a vibration standard shown to ISO 2631-1.
As a result of outdoor investigation, it was clear that in the normal sidewalk, it was dotted with points more than the healthy dangerous vibration value.
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