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Twisted String Actuation Systems

  • ID: 4772113
  • Book
  • 300 Pages
  • Elsevier Science and Technology
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Twisted String Actuation Systems: Applications, Modelling, and Control discusses the emerging area of twisted string actuation. It provides the basics of modeling and control, while also outlining the potential advantages of this actuation technique. Several detailed case studies describe the requirements and design parameters of the TSAs developed for different robotic applications. In addition, the book covers guidelines for engineers on the design and implementation of TSA in new areas and applications, discussing how to select strings with appropriate properties and suitable material, how to model actuators, and how to predict efficiency and lifetime.

The book will benefit the engineering community and increase the popularity of this promising novel type of actuator as it brings together the most up-to-date technologies and advances in the TSA field, along with their background and history.

  • Summarizes the state-of-the-art research in the area of twisted string actuators
  • Provides the reader with the basics of modeling and control over actuators of this type, also outlining the potential advantages of this actuation technique
  • Presents several case studies describing, in detail, the requirements and design parameters of the TSAs developed for various engineering applications, ranging from precise object positioning, to heavy-duty manipulation
  • Includes MATLAB code files for modeling different aspects of the TSAs
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1. Foreword
2. Twisted String Actuators: History and Background
3. Mathematical Modelling of TSA
3.1. Conventional Kinematostatic Model
3.2. Improved Kinematics
3.3. Torque Modeling
3.4. Lifetime of the Strings
4. Control of TSA
4.1. Feedback Control
4.2. Tension Control of Antagonistically Placed TSAs
4.3. Variable Stiffness Joint Control
4.4. Advanced Control Strategies
5. Design Guide
5.1. Operation Requirements
5.2. String Selection
5.3. TSA Verification
6. Conclusion and Future Research
Case Study I: Precision Manipulation System
Case Study II: Upper-body Exoskeleton
Case Study III: Lower-body Exoskeleton
Case Study IV: Heavy Duty Manipulation System
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Igor, Gaponov
Dr. Igor Gaponov received his MS and PhD degrees from Koreatech in 2008 and 2011, respectively. He is currently Assistant Professor at Korea University of Technology and Education (Koreatech), Chungcheongnam-do, Republic of Korea. Dr. Gaponov has been actively involved in research on twisted string actuators for the past 7 years, publishing several key papers in this area in the international referred journals and conferences, and filing international patents. Thanks to collaboration with other research teams and universities around the world working in the TSA area, he is well informed about the state of the art and recent advances in the TSA technology and aims to bring the existing knowledge base together in one book.
Ryu, Jee-Hwan
Jee-Hwan Ryu received his BS degree in Mechanical Engineering from Inha University, Rep. of South Korea in 1995, and his MS and PhD degrees in Mechanical Engineering from Korea Advanced Institute of Science and Technology (KAIST), Taejon, Korea, in 1995 and 2002, respectively. He is currently a Professor at the Department of Mechanical Engineering, Korea University of Technology and Education. His research interests include haptics, telerobotics and teleoperation, exoskeletons, and flexible manipulators.
Nedelchev, Simeon
Simeon Nedelchev is at Korea University of Technology and Education, Republic of Korea
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