Method and system for part design using heterogeneous constraints

Patent metadata

Field	Value
Publication number	US-11775703-B2
Application number	US-202217668211-A
Country	US
Kind code	B2
Filing date	Feb 9, 2022
Priority date	Sep 5, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A method of classifying design criteria includes receiving design criteria for a product part. The criteria comprise one or both of performance and manufacturing criteria. The design criteria are sorted into different classes of one or both of one or more objective functions and one or more constraints based on when they can be satisfied or optimized. Constraint violations are determined. A design workflow is produced to generate one or more designs of a part to comply with one or more of satisfying constraints and optimizing objective functions.

First claim

What is claimed is:

1. A method comprising:
receiving manufacturing criteria for a product part;
sorting the manufacturing criteria into different classes of one or both objective functions and constraints based on when they can be satisfied or optimized;
determining constraint violations; and
producing a design workflow to generate one or more designs of a part to comply with one or more of satisfying constraints and optimizing objective functions, the design workflow invoking a combination of solvers including forward problem solvers and inverse problem solvers.

2. The method of claim 1 , wherein the constraints comprise one or more of set constraints, equality constraints, and inequality constraints.

3. The method of claim 1 , wherein scopes of the constraints comprise one or more of global, local, and strictly local.

4. The method of claim 1 , further comprising computing performance fields of the one or more designs.

5. The method of claim 4 , further comprising:
evaluating the objective functions based on the performance fields; and
ordering the one or more designs based on the evaluated objective functions.

6. The method of claim 4 , further comprising:
computing constraint violations based on the performance fields; and
determining if the one or more designs are feasible based on the computed constraint violations.

7. The method of claim 1 , wherein the solvers are organized in the workflow such that the solvers that produce a broadest family of designs are invoked first.

8. A method comprising:
receiving performance criteria for a product part;
sorting the performance criteria into different classes of one or both objective functions and constraints based on when they can be satisfied or optimized;
determining constraint violations; and
producing a design workflow to generate one or more designs of a part to comply with one or more of satisfying constraints and optimizing objective functions, the design workflow invoking a combination of solvers including forward problem solvers and inverse problem solvers.

9. The method of claim 8 , wherein the constraints comprise one or more of set constraints, equality constraints, and inequality constraints.

10. The method of claim 8 , wherein scopes of the constraints comprise one or more of global, local, and strictly local.

11. The method of claim 8 , further comprising computing one or more performance fields of the one or more designs.

12. The method of claim 11 , further comprising:
evaluating the objective functions based on the performance fields; and
ordering the one or more designs based on the evaluated objective functions.

13. The method of claim 11 , further comprising:
computing constraint violations based on the performance fields; and
determining if the one or more designs are feasible based on the computed constraint violations.

14. The method of claim 8 , wherein the solvers are organized in the workflow such that the solvers that produce a broadest family of designs are invoked first.

Assignees

• Palo Alto Res Ct Inc
• Xerox Corp

Inventors

• Mirzendehdel Amirmassoud
• Behandish Morad
• Nelaturi Saigopal

Classifications

• G06F30/17 Primary

  Mechanical parametric or variational design · CPC title

• G06F2111/04

  Constraint-based CAD · CPC title

• G06F2111/20

  Configuration CAD, e.g. designing by assembling or positioning modules selected from libraries of predesigned modules · CPC title

• G06Q10/043 Primary

  Optimisation of two dimensional placement, e.g. cutting of clothes or wood · CPC title

• G06Q50/04

  Manufacturing · CPC title