| Project/Area Number |
07650317
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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 |
Intelligent mechanics/Mechanical systems
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| Research Institution | Kanagawa Academy of Science and Technology |
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Principal Investigator |
YAMAGATA Yutaka Higuchi Project, Kanagawa Academy of Science and Technology Researcher, 樋口プロジェクト, 研究員 (70261203)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | piezoelectric actuators / precise positioning / micropositioning / automatic assembly / adaptive control / 圧電アクチュエーター / インパクト駆動機構 / 多自由度位置決め |
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| Research Abstract |
The aim of this research is to establish positioning strategy of an object under frictional constrain utilizing impulive force generated by piezoelectric actuators and to develop a ultrahigh precise assembly system using it. The research results can be summed up as follows :
(1) A motion mechanism driven by impulsive inertial force by piezoelectric actuator is developed and its ability to move a object precisely under frictional constrain is verifed.
(2) A positioning mechanism which is capable of controlling three dimensional motion (X,Y,and Rotation) is developed and positioning experiments are carried out. Positioning experiments are carred out utilizing a newly proposed control strategy with adaptive control and linear programming method. It was possible to align a workpiece at the minimum resolution of the positioning sensor.
(3) A workpiece positioning device for positioninig workpiece on the main spindle of a ultrahig precision machine tool is developed and its performance is verified. It was possible to align a workpiece at the resolution below 500 nanometer.
Those results show that a positioning system of a workpiece using impulsive force generated by piezoelectric actuator is quite effective in workpiece alignment at ultrahigh precision level. Since, those experiments are carried out in close condition to the actual assembly operation in industries, it is expected that those results will be applied to industrial assembly operations.
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