Method for structural optimization of a design and cost of a physical object

US12124995B2 · kind B2 · utility

Assignees

• Honda Research Institute Europe GmbH · DE
• HONDA MOTOR CO., LTD. · JP

Inventors

• Mariusz Bujny · Offenbach, DE
• Hung Lin · Offenbach, DE
• Nathan Zurbrugg · West Liberty, US
• Duane Trent Detwiler · Powell, US
• Stefan Menzel · Dreieich, DE

Key dates

• Filing date: Dec 21, 2021
• Grant date: Oct 22, 2024
• Expiry date: Dec 23, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q10/06313
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A computer-implemented method for optimizing a design of a physical object comprises: obtaining a data representation of the design of the physical object, including a plurality of elements, determining plural element clusters comprising a plurality of elements and estimating a cost model for the physical object. The method determines derivatives of the cost model with respect to a material density of each cluster. At least one analytical derivative of a performance metric for each element is computed. The design is optimized by iteratively performing: varying the material density of at least one element based on the analytical derivative and the estimated derivatives of the cost model, estimating the cost using the cost model based on the data representation with varied material density. The method generates and outputs a signal comprising the optimized data representation in case a termination criterion has been met.