Andrew R. Johnson

About

Andrew R. Johnson has made focused and innovative contributions to the field of robotics, specializing in the application of electrorheological (ER) fluids for advanced actuation systems. His research centers on the development and control of smart fluid clutches, particularly the twin ER clutch linear reversing mechanism, to achieve high-speed, precise robotic motion. Johnson's most cited work, "A Simple One Dimensional Robot Joint Based on the ER Linear Reversing Mechanism" (2002, 17 citations), demonstrates the feasibility of this technology, showing that high response speed, displacement, and positional accuracy can be obtained bi-directionally. He further validated a mathematical model of this apparatus, providing a foundational control strategy for robotic applications. His subsequent studies (2001, 2005) extend this work by addressing positioning accuracy at fast maneuvering speeds, a critical challenge in robotics. By tackling dynamic inefficiencies in robotic actuators, Johnson's research offers a pathway to more responsive and precise manipulators, making his contributions valuable for engineers developing high-speed automation and robotic systems.

Research Focus

Key Achievements

Top Papers

1. 1
   A Simple One Dimensional Robot Joint Based on the ER Linear Reversing Mechanism

   17 citations · 2002
2. 2
   <title>Electrorheological clutch for robotics applications: validation of mathematical model and preliminary control study</title>

   2 citations · 2001
3. 3
   MODEL VALIDATION AND TREND STUDY OF A TWIN ELECTRO-RHEOLOGICAL (ER) CLUTCH MECHANISM FOR ROBOTIC APPLICATIONS

   2 citations · 2005

Key Collaborators

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