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A New Actuation Approach for Human Friendly Robot Design

Design Division, Department of Mechanical Engineering Stanford University Stanford, CA 94305, USA zinn{at}robotics.stanford.edu

Bernard Roth

Design Division, Department of Mechanical Engineering Stanford University Stanford, CA 94305, USA roth{at}robotics.stanford.edu

Oussama Khatib

Robotics Laboratory, Department of Computer Science Stanford University Stanford, CA 94305, USA ok{at}robotics.stanford.edu

J. Kenneth Salisbury

Robotics Laboratory, Department of Computer Science Stanford University Stanford, CA 94305, USA jks{at}robotics.stanford.edu

In recent years, many successful robotic manipulator designs have been introduced. However, there remains the challenge of designing a manipulator that possesses the inherent safety characteristics necessary for human-centered robotics. In this paper, we present a new actuation approach that has the requisite characteristics for inherent safety while maintaining the performance expected of modern designs. By drastically reducing the effective impedance of the manipulator while maintaining high-frequency torque capability, we show that the competing design requirements of performance and safety can be successfully integrated into a single manipulation system.

Key Words: actuation • human-friendly • safety • robotics • control

The International Journal of Robotics Research, Vol. 23, No. 4-5, 379-398 (2004)
DOI: 10.1177/0278364904042193


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