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The purpose of this research is to present a new method to achieve precise position tracking control for robot finger with variable stiffness mechanism. First, the variable stiffness design of the finger which is actuated by SMA-3 fibers is presented. Then, the relationship between the variation of pulling force ΔF of the bending robot finger and input voltage of SMA-3 is established. In addition,...
This paper presents a novel stair recognition method by utilizing three-dimensional (3D) scanning for a hexapod robot to climb stairs. The method is based on the premise that stairs are composed of several parallel planar surfaces. A 3D laser range finder (LRF) system equipped on a hexapod robot is developed for performing 3D scanning. The algorithm can be divided into two procedures. At first, detecting...
This paper presents a novel hexapod robot with legs radially free distributed around the body. Compared with radial symmetric or rectangular symmetric robots, the legs of radially free distributed hexapod robot can rotate around the body of the robot and redistribute their positions thanks to the proposed radially free distribution mechanism. The kinematic model of the articulated leg mechanism is...
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