| Project/Area Number |
16K06152
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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 | Nagaoka University of Technology |
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Principal Investigator |
Ohta Hiroyuki 長岡技術科学大学, 工学研究科, 教授 (30233141)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | リニアガイドウェイ / スティッキング / 機械要素 / 機械力学・制御 |
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| Outline of Final Research Achievements |
This research deals with the generation mechanism of the sticking (which is the significant increase in the required driving force for a linear guideway in a back-and-forth short stroke operation)of the linear guideway and the reduction method. Experimental results showed that sticking occurred when the linear bearing was under a relatively high rolling moment load and driven in an offset position. When the sticking occured, the adjavcent load balls were closer. This means that the cause of sticking was the sliding friction between adjacent load-balls in the load zone. Finally, it was demonstrated that using a carriage-body type, which is more deformable, had a tendency to reduce sticking.
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| Academic Significance and Societal Importance of the Research Achievements |
リニアガイドウェイは，摩擦が小さくスティックスリップが起こらないとこれまではいわれてきた．しかし，近年における，機械の運転条件の多様化に伴って，運転中にリニアガイドウェイの摩擦が急激に増加するいわゆるスティッキングが発生することが明らかになり，その発生機構の解明と低減が産業界から強く求められてきた．
本研究は，スティッキングの研究を初めて行ったものであり，その発生機構を解明した点に学術的な意義がある．また，変形しやすいキャリッジを用いることで，スティッキングが低減できることを実証し，産業界からの要請に対応できた点に社会的な意義がある．
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