2001 Fiscal Year Final Research Report Summary
Module Base Control of Network-structure Robots with Huge Degree-of-freedom
| Project/Area Number |
12650245
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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 | TOKYO INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
IWATSUKI Nobuyuki Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate Professor, 大学院・理工学研究科, 助教授 (70193753)
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| Co-Investigator(Kenkyū-buntansha) |
MORIKAWA Kouichi Tokyo Institute of Technology, Graduate School of Science and Engineering, Research Associate, 大学院・理工学研究科, 助手 (00282830)
HAYASHI Iwao Tokyo Institute of Technology, Graduate School of Science and Engineering, Professor, 大学院・理工学研究科, 教授 (80016790)
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| Project Period (FY) |
2000 – 2001
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| Keywords | Network-structure robot / Robot with huge DOF / Network-structure module / Kinematic analysis / Representative point / Overacturator mechanism / Closed-loop mechanism / Position control |
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| Research Abstract |
Aiming to establish an effective method to control network-structure robots which are composed of modules and have with huge degree-of-freedom, Module Base Control was proposed and was applied to planar and spatial network-structure robots. The control performance was theoretically and experimentally discussed. The results obtained are summarized as follows.
(1) Formulae of the direct and inverse kinematics of three kinds of network-structure modules with several actuators and DOF were derived by taking account of representative points on the modules. A new method to carry out the inverse kinematics of network-structure robot with iterative convergent calculation repeating the inverse kinematics of the modules for the inaccurate desired positions of the representative points and the direct kinematics of the whole robot was proposed
(2) Continuous path control of the planar network-structure robot with 12 DOF based on the proposed inverse kinematics with representative points was experime
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ntally examined. Because the robot could generate the desired trajectories, the proposed method was confirmed effective and useful.
(3) The module base control method was extended and applied to planar network-structure robots with several output points or with multiple revolute joints and overactuators. They achieved precision positioning with small iterative calculations.
(4) Number syntheses of spatial network-structure modules which have multi-jointed links, revolute joints, cylindrical joints and spherical joints was carried out. By combining the obtained two modules, a spatial network-structure robot with five degrees-of-freedom was synthesized.
(5) Direct kinematic analysis and singular configuration analysis of the synthesized spatial network-structure robot were carried out. By using the results, a prototype of the robot which could avoid singular configuration was built and experimentally examined. It was then confirmed that the proposed module base control was effective and useful to control planar or spatial network-structure robots. Less
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