• Title/Summary/Keyword: Multi-Axis

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A Study of Vibration Control of a Slender Structure Using a Multi-Degree-of-Freedom Manipulator (다 자유도 운동장치를 이용한 세장구조물의 진동제어 연구)

  • Kim, Nak-In;Lee, Jong-Won
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.25 no.8
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    • pp.1227-1234
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    • 2001

  • A multi d.o.f robotic manipulator is considered for multi-axis vibration control of a slender structure, using the concept of the flow source based vibration control. In order not to cause the motion saturation of the manipulator system, a hybrid dynamics associated with the flexible and desired manipulator error dynamics is also modeled as the control object. It is numerically shown that the flexible vibrations and the base motions of a test structure can be effectively controlled with the proposed hybrid dynamics.

  • https://doi.org/10.22634/KSME-A.2001.25.8.1227 인용 PDF

Characterization of Superconducting Multi-layer Thin Films (초전도 다층박막의 특성 해석)

  • 이현수;한태희;임성훈;고석철;두호익;한병성
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2000.07a
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    • pp.243-246
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    • 2000

  • The sputtering systems mainly consist of the three-target holder. The target and substrate were the on-axis type. The MgO and STO substrate were used for the deposition of each layer. The optimum conditions of single-layer thin film were investigated from the SEM images and the XRD patterns. Based on the above conditions, the multi-layer thin films such as YBaCuO/LaGaO/Au/Nb and YBaCuO/Au/Nb were fabricated. The crystalline, the electrical Properties, the energy gap structure and the characteristics of the tunneling barrier on the multi-layer thin film have been investigated and characterized.

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