Development of mechanical arms in nursing care equipments for caregivers and care recievers using dynamic properties of living bodies
| Project/Area Number |
23560250
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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 |
Dynamics/Control
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| Research Institution | Gunma University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
FUJII Yusaku 群馬大学, 大学院理工学研究科, 教授 (80357904)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 機械力学・制御 / 衝撃吸収 / 緩衝材 / 安全 / 介護用機械 / 有限要素法 / 粘弾性 / 減衰 |
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| Research Abstract |
We investigated arms in nursing machine having high shock absorbing performances. We developed calculation programs to simulate the impact properties of the arm with shock absorbers. To compute the impact responses, we proposed nonlinear complex springs that takes into account nonlinear hysteresis and the nonlinear restoring force. These nonlinear complex springs are connected to structures modeled using finite elements. We developed an evaluation device of shock absorbing performances for the arms. From the experiments and numerical analysis, we proposed a new arm with a high shock absorbing performances.The proposed arm has a core with viscoelastic foam having a hollow cross section.Under small impact forces, this arm absorbs the shock by the hysteresis damping and a buckling of the foam. This arm having the divided core includes higher shock absorbing performance due to contact friction between the divide members under large impact forces.
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Report
(4 results)
Research Products
(17 results)
