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How to Model Tendon-Driven Continuum Robots and Benchmark Modelling Performance.

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This study reviews modeling approaches for tendon-driven continuum robots. Different methods offer trade-offs between accuracy and computation time, guiding selection for specific applications.

Keywords:
modellingsoft armsoft manipulatorsoft robottendon actuation

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Area of Science:

  • Robotics
  • Mechanical Engineering
  • Continuum Mechanics

Background:

  • Tendon actuation is a key mechanism in continuum robots.
  • Numerous modeling approaches exist for tendon-driven continuum robots.
  • A comprehensive overview of these methodologies is needed.

Purpose of the Study:

  • To summarize and outline state-of-the-art modeling approaches for tendon-driven continuum robots.
  • To classify existing models based on backbone representations and kinematic/static assumptions.
  • To provide guidelines for selecting appropriate models.

Main Methods:

  • Classification of relevant modeling approaches.
  • Conducting numerical case studies to compare model performance.
  • Analyzing accuracy and computation time across different robot parameters and scenarios.

Main Results:

  • Identified and classified various modeling approaches for tendon-driven continuum robots.
  • Demonstrated that different models exhibit varying performance in accuracy and computational efficiency.
  • Highlighted trade-offs between different modeling strategies.

Conclusions:

  • The choice of modeling approach significantly impacts performance for tendon-driven continuum robots.
  • Guidelines for selecting the most suitable modeling approach based on robot design and application requirements were deduced.
  • This work provides a valuable resource for researchers and engineers in the field.