System and method for determining wear

The method iteratively determines wear distance using a Newton scheme, addressing interdependencies in finite element simulations to enhance accuracy and robustness in wear modeling.

JP7874142B2Active Publication Date: 2026-06-15DASSAULT SYSTEMS AMERICAS CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
DASSAULT SYSTEMS AMERICAS CORP
Filing Date
2024-10-07
Publication Date
2026-06-15

AI Technical Summary

⚠Technical Problem

Existing computer-based systems for modeling surface wear in finite element simulations struggle to accurately handle the interdependence between wear distance, contact stress, and contact slip, leading to inaccuracies and convergence issues, while requiring artificial constraints and unsophisticated handling of wearable surfaces.

⚗Method used

A method and system that iteratively determine wear distance using a Newton iterative scheme, considering all contact constraints and updating node positions based on wear distance, allowing simultaneous handling of wear, contact stress, and contact slip within finite element simulations.

🎯Benefits of technology

Improves accuracy and robustness in wear modeling by handling interdependencies between wear distance, contact stress, and contact slip implicitly, reducing reliance on numerical details and enhancing convergence behavior.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide systems and methods for determining wear.SOLUTION: Embodiments determine wear. One such embodiment obtains, in memory associated with a processor, a finite element mesh representing a first object. For a given node of the obtained mesh, a wear variable is associated and linked to contact constraints associated with the node. A simulation of contact is performed, over movement increments, between the first object and a second object to determine wear at the node. Wear distance is iteratively determined for a given increment using the mesh, the associated variable, and the constraints. A position of the node in the mesh is iteratively updated based on the determined wear distance for the given increment, until the wear distance for each of the increments is determined. The wear at the node is determined based on the determined wear distance for each of the increments. An indication of the determined wear is output.SELECTED DRAWING: Figure 16
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