A novel approach to modelling and simulating the contact behaviour between a human hand model and a deformable object

Area of Science:

• Biomechanics
• Human-Computer Interaction
• Finite Element Analysis

Background:

• Understanding human hand biomechanics is crucial for ergonomic product design and user interaction.
• Precise dynamic models are needed for evaluating product-user interfaces in fields like surgical training.

Purpose of the Study:

• To develop a novel, precise nonlinear 3D finite element model of the human hand.
• To investigate the contact behavior between the hand and hand-held tools using simulation.

Main Methods:

• Developed a nonlinear 3D finite element model of the human hand.
• Implemented anisotropic hyperelastic laws to represent biomechanical characteristics.
• Utilized the bi-potential method to analyze contact behavior.

Main Results:

• Successfully modeled complex hand biomechanics, including deformities and structural behavior.
• Simulated and analyzed the externalized contact behavior between the hand and tools.
• Demonstrated the model's effectiveness through a case study.

Conclusions:

• The developed 3D finite element model provides a precise tool for analyzing human hand biomechanics and contact interactions.
• This approach supports the development of ergonomic products and enhances training simulations.
• The model offers a valuable scientific evaluation method for product and system design.