Numerical time-domain modelling of hoof-ground interaction during the stance phase

Area of Science:

• Biomechanics
• Equine Science
• Computational Modeling

Background:

• Hoof-ground interaction significantly influences horse health and performance.
• Previous research often focused on isolated aspects due to the complexity of the hoof-ground interface.
• A multidisciplinary approach combining mathematical modeling and experimental data is crucial.

Purpose of the Study:

• To biomechanically explain phenomena observed in hoof-ground interaction using a mathematical model.
• To contribute to an integrated experimental-mathematical approach for studying equine locomotion.
• To analyze hoof acceleration and interacting forces during the stance phase.

Main Methods:

• Developed an in silico finite element model of the horse's limb, hoof, and unbounded ground.
• Utilized the scaled boundary finite element method to simulate radiation damping.
• Incorporated motoric forces of the horse during locomotion.

Main Results:

• Numerical results for hoof acceleration-time relationships at various trotting speeds qualitatively matched published experimental data.
• The model computed power loss based on ground properties and damping.
• Calculated maximum limb force during the stance phase.

Conclusions:

• The simplified model demonstrates applicability by aligning with experimental findings.
• The model provides valuable insights into the complex processes of hoof-ground interaction.
• Future refinements could include detailed contact properties and skeletal structures.