Title
Flexible Hermetically-Sealed Mobile Robot for Narrow Spaces Using Hydrostatic Skeleton Driving Mechanism
Abstract
Almost all of conventional mobile robots for narrow spaces exploration, e.g. rescue robots, adopt crawler or wheel mechanisms. However, in narrow spaces, such robot is often stuck because the robot body is sandwiched between both sides of a terrain. Especially, with normal crawler or wheel mechanisms, it is impossible to penetrate into narrow spaces lower than the height of the robot. In addition, sealing bushes of drive shaft cause unignorable energy loss because of rotational resistances. In order to solve these problems, this study proposes an innovative flexible robot with new hydrostatic skeleton driving mechanism. The main components of the robot are a hermetically-sealed outer cover with looped structure and flexible crawlers with hydrostatic skeleton named HS crawlers. This new robot provides remarkable advantages in narrow spaces as listed below i) The robot can change its shape adapting to terrain. ii) All ground contact areas of the robot are driven toward the same direction. Thus, the robot is able to penetrate into narrow spaces changing its shape even if the terrain is rather narrower than the size of the robot. This paper describes the mechanisms of the robot and the detail of the HS crawler. Driving force of the HS crawler is discussed with comparison of simulation and experiment. Performance of first prototype robot is verified by experiments of wireless driving and passing narrow space. The prototype robot could pass through a space of 300mm height, whereas the ordinary height of the robot is 420mm.
Year
DOI
Venue
2006
10.1109/IROS.2006.281840
IROS
Keywords
Field
DocType
hydrostatics,mobile robots,robot dynamics,300 mm,420 mm,flexible crawlers,flexible hermetically-sealed mobile robot,hydrostatic skeleton driving mechanism,prototype robot,wheel mechanisms,flexible robot,looped cover,narrow spaces,watertight structure
Computer science,Rescue robot,Simulation,Bang-bang robot,Robot kinematics,Control engineering,Robot,Cartesian coordinate robot,Arm solution,Mobile robot,Articulated robot
Conference
Citations 
PageRank 
References 
3
0.60
3
Authors
5
Name
Order
Citations
PageRank
Hitoshi Kimura1609.18
Fumihiro Kajimura230.60
Daisuke Maruyama3514.32
Michihiko Koseki4264.77
Norio Inou5265.45