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Gap size effect on the tribological characteristics of the roller for deep-sea mining robot

Title
Gap size effect on the tribological characteristics of the roller for deep-sea mining robot
Author
배대성
Keywords
Deep-sea mining robot; effective viscosity; gap size effect; tribological characteristics; EFFECTIVE VISCOSITY; SYSTEM; PRESSURE; DYNAMICS; BEARING; SLIP; FLOW
Issue Date
2017-01
Publisher
TAYLOR & FRANCIS INC
Citation
MARINE GEORESOURCES & GEOTECHNOLOGY, v. 35, No. 1, Page. 120-126
Abstract
To design the deep-sea mining robot, it is essential to analyze the tribological characteristics of its roller. In this study, we introduced the dynamic simulation model to analyze the tribological characteristics of the roller for deep-sea mining robot, considering the temperature, viscosity, viscous damping force, and gap size between the inner and outer rib seals. Effective viscosity changes with gap size in micro/nanoscale while the effective viscosity is equal to the kinematic viscosity in macroscale. For the stable operation of the roller, the effective viscosity must be less than the critical viscosity. As the gap size decreases, the effective viscosity increases while the critical viscosity decreases. This study shows that the gap size between the inner and outer rib seals of roller is the most dominant factor in designing the roller for deep-sea mining robot to use at relatively low temperatures that are found in the deep-sea environments.
URI
https://www.tandfonline.com/doi/abs/10.1080/1064119X.2015.1114544https://repository.hanyang.ac.kr/handle/20.500.11754/71626
ISSN
1064-119X; 1521-0618
DOI
10.1080/1064119X.2015.1114544
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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