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With high adaptability to environments snakelike robots offer a variety of advantages over other mobile robots. Such a robot with passive wheels has quite different mechanism in locomotion from that of other locomotion systems. We have developed a snakelike robot for rescue applications. The unit composing the snakelike robot of Shenyang Institute of(More)
To acquire more environmental information for planning further tasks, the snake-like robot has to raise its head to observe the situation at a high position due to its low-height stature, which resembles the head-raising motion of the natural snake. In this paper, the motion of snake-like robot raising head is realized by improving the serpentine input(More)
As a hyper-redundant robot, a 3D snake-like robot can perform many other configurations and types of locomotion adapted to environment except for mimicking the natural snake locomotion. The natural snake locomotion usually limits locomotion capability of the robot because of inadequacy in the mechanism and actuation to imitate characters of natural snake(More)
This paper presents a novel omnidirectional wheel mechanism, referred to as MY wheel-II, based on a sliced ball structure. The wheel consists of two balls of equal diameter on a common shaft and both balls are sliced into four spherical crowns. The two sets of spherical crowns are mounted at 45° from each other to produce a combined circular profile.(More)
It is essential to design a joint mechanism for snake-like robots to exhibit more mobility, no singularity and powerful actuation for many applications. By adding a series of passive wheels to the perimeter of the newly designed joint mechanism with 3 DOFs, a snake-like robot provided with the characteristic of omnidirectional mechanism can traverse rough(More)
A novel omnidirectional wheeled mechanism, named as MY wheel, is developed based on the sliced ball structure in this paper. With mutual passive motion of two sliced balls on the same one active axis, an omnidirectional motion can be achieved. The passive rotational axes of two sliced balls are inclined with 45 degree in two parallel planes, which are(More)
Snake-like robots exhibited more advantages than conventional mobile robots on environment adaptation. They almost can move in most ill conditions including rough terrain, desert, water, cave and tree. In this paper, a 3D snake-like robot called Perambulator-II (Shenyang Institute of Automation snake-like robot II) is developed with the acquirement of(More)
The recent natural and man-made devastations have urged the research on the urban search and rescue (USAR) robot systems. This paper presents a novel shape-shifting mobile robot system named as Amoeba II (A-II) for the urban search and rescue application. It has been designed with three degrees of freedom (DOFs) and two tracked drive systems. This robot(More)
The interaction between the snake-like robot and environment produces serpentine action to push the body forward. A slender body shape made from many modules occupies a larger scale. In this paper, snake-like robot motion planning method is analyzed by considering each module's position and its movement as well as position of obstacles. The Potential Energy(More)
For improvement of planetary rover locomotion, a new type of tracked vehicle was designed for planetary exploration based on the concept of reconfigurability. By applying the planetary wheel principle, the system can give output in different forms under various constraint conditions. As a reconfigurable module, the vehicle can be integrated into a larger(More)