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논문 기본 정보

자료유형
학술저널
저자정보
Mingyo Seo (Korea Institute of Science and Technology) Woosub Lee (Korea University of Science and Technology)
저널정보
Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Vol.36 No.4
발행연도
2019.4
수록면
339 - 348 (10page)
DOI
10.7736/KSPE.2019.36.4.339

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초록· 키워드

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This paper reviews design elements and presents a mobile platform that has full access of wheel actuation for explicit steering with a minimized number of actuators. For the purpose of exploring lunar surfaces, there are two main design perspectives to be considered. First, the mobile system should guarantee traversability on rough terrain in microgravity condition. Secondly, the system should be sustainable in the extreme environment of the lunar surface including cosmic rays and excessive temperature changes. One of the potential solutions to improve the reliability of the rover system is to reduce the chance of failure by minimizing the number of electronic components including actuators and their following components and installing them in the rover’s warm-box. We approached the design of the mobile system in the aspect of its kinematics with assumptions of pure-rolling and non-lateral slip. We found a relation that a pair of front and rear wheels on the same side is coupled so that their alignment and rotational speed can be coupled by a mechanism. This allows advantages of explicit steering, minimizing redundancy of actuators and isolating all the electronic components from the effects of external environments. To demonstrate the feasibility of the system, we developed a rover testbed and presented its mobility of explicit steering by experiments of open-loop trajectory traveling.

목차

1. Introduction
2. Design Elements for the Mobile Platform
3. Design of Mobile Platform
4. Hardware Implementation
5. Experiment
6. Conclusion and Future Works
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