A mechanical hand for prosthetic applications: multibody model and contact simulation.

Area of Science:

• Robotics and Biomechanics
• Prosthetic Design
• Mechanical Engineering

Background:

• Assessing the dynamical behavior of mechanical hands is essential for their use as prosthetic devices.
• Simulation methods are crucial for predicting the dynamics of mechanical components.
• Multibody models offer a valuable approach for analyzing mechanical hand dynamics.

Purpose of the Study:

• To explore theoretical aspects of designing mechanical hands for prosthetic applications.
• To evaluate various simulation approaches for predicting mechanical hand dynamics.
• To understand the relationship between phalanx rotations and grasping ability.

Main Methods:

• Utilizing multibody models to simulate finger dynamics.
• Analyzing phalanx rotations to predict finger closure sequences.
• Reviewing theoretical frameworks for mechanical hand design.

Main Results:

• Multibody models effectively predict phalanx rotations.
• Phalanx rotation sequences directly impact the grasping capabilities of mechanical hands.
• Simulation approaches provide insights into mechanical hand performance.

Conclusions:

• The study highlights the importance of dynamical behavior analysis in prosthetic hand development.
• Multibody simulations are a viable tool for predicting mechanical hand performance prior to physical prototyping.
• Understanding phalanx dynamics is critical for optimizing the grasping function of prosthetic hands.