Contributions to the Dynamic Regime Behavior of a Bionic Leg Prosthesis.

Area of Science:

• Biomedical Engineering
• Robotics
• Materials Science

Background:

• Prosthetic devices aim to replicate healthy human biomechanics during locomotion.
• Lightweight and energy-efficient designs are crucial for reducing actuator power and consumption.
• Matching angular-torque profiles is essential for effective prosthetic function.

Purpose of the Study:

• To investigate the dynamic characteristics of a novel bionic leg.
• To evaluate a prosthetic leg constructed using 3D-printing technology and electric actuators.
• To assess the energy efficiency and structural integrity of the bionic leg design.

Main Methods:

• Fabrication of a bionic leg using three-dimensional (3D)-printing technology.
• Integration of servomotors for rotational joint movement and a stepper motor for horizontal movement.
• Performance of mechanical tests (tension, compression, bending) for numerical simulation calibration.

Main Results:

• The study successfully created a 3D-printed bionic leg with electric actuators.
• Mechanical testing provided essential data for accurate numerical simulation of the prosthetic model.
• Dynamic stress analysis confirmed the structural resistance of the bionic leg under tested conditions.

Conclusions:

• The developed bionic leg exhibits promising dynamic characteristics for replicating human locomotion.
• The 3D-printed prosthetic demonstrates structural resilience, indicating its potential for practical application.
• This research contributes to the advancement of lightweight, energy-efficient prosthetic devices.