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This paper proposes the MHIC (Modified Hybrid Impedance Control) strategy of the redundant robot for ORU replacements based on the ground testbed. First, the operation process is analyzed and the corresponding strategies of ORU replacements are proposed. Then, based on the traditional hybrid impedance control method, MHIC of redundant robots is proposed achieving compliance or force tracking in different...
This paper proposes the design and development of an integrated serial elastic actuator (SEA) which is used as the elbow joint in the soft humanoid arm. First, requirements of SEA are illustrated. And six different types of elastic elements (e.g. the discoid element, the cylindrical) are analyzed using the design of experiment (DOE) method. And then, a discoid elastic element with larger flexibility...
A highly integrated joint controller using in a humanoid robot arm has been developed in the paper. The joint controller is highly integrated with position sensors — the hall sensors, the magnetic sensor and the photoelectrical sensor, the torque sensors, the temperature sensor and so on. Besides, it can control and drive the motor in PWM and SVPWM modes. What is more, the joint controller has been...
Scientific research and development on the control of autonomous airship have shown a significant growth in recent years. New applications appear in the areas such as freight carrier, advertising, monitoring, surveillance, transportation, military and scientific research. The control of Autonomous airship is a very important problem for the aerial robots research. In this paper, the previous research...
This paper presents a method for object shape recognition and the real-time grasping of unknown plane objects only using the positions information of robotic hand fingers. We aim to recover the shape, position and orientation of the grasped object by random five grasping points and the vision system in Cartesian space. A highly intelligent information fusion model which is combined with the expert...
In this paper, an improved algorithm to measure Chinapsilas EMU spacesuit joint damping parameters for the old passive robot system is presented. The measuring principle is based on robot kinematics and dynamics. Firstly, a kinematic model of the passive robot and the EMU spacesuitpsilas arm is built according to the special mechanical structure. Secondly, improved methods of solving the inverse kinematics...
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