Manipulability Inclusive Principle for Assistive Result Evaluation of Assistive Mechanism

Area of Science:

• Biomechanics
• Robotics
• Human-Machine Interaction

Background:

• Assistive mechanisms require evaluation for kinematic performance and human movement compatibility.
• Existing methods may not fully capture the interplay between mechanism capabilities and human limb dynamics.

Purpose of the Study:

• To define the physical significance of assistance in assistive mechanisms from a kinematic perspective.
• To propose and validate the Manipulability Inclusive Principle (MIP) for evaluating assistive mechanism feasibility and effectiveness.
• To optimize assistive mechanisms for enhanced kinematic performance and user assistance.

Main Methods:

• Kinematic analysis of assistive mechanisms.
• Development and application of the Manipulability Inclusive Principle (MIP).
• Comparative analysis of limb and mechanism manipulability.
• Optimization of assistive mechanism design based on MIP.

Main Results:

• MIP provides a quantitative measure for assistive feasibility and effect.
• MIP-based optimization improves kinematic performance (symmetry, isotropy) and assistance quality.
• The optimized mechanism avoids interference with human movement within the workspace.
• Successful application demonstrated on a human lower-limb walking power-assisting mechanism.

Conclusions:

• The Manipulability Inclusive Principle (MIP) is an effective framework for designing and optimizing assistive mechanisms.
• MIP ensures that assistive devices offer superior kinematic performance and user support.
• This approach enhances the feasibility and effectiveness of assistive technology across the entire workspace.