COMPOSITE JOINT OPTIMIZATION

• US 20170032077A1
• Filed: 07/27/2015
• Published: 02/02/2017
• Est. Priority Date: 07/27/2015
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: KHOSRAVANI, Shahriar, NAKHJAVANI, Omid B., BELL, Vincent, TENNYSON, Laine, DABIRI, Farhad
• Granted Patent: US 10,878,139 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B64D 45/02 Lightning protectors; Static dischargers in general H01T
• CPC Class Codes: B64F 5/00 Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
• CPC Class Codes: B64F 5/60 Testing or inspecting aircraft components or systems
• CPC Class Codes: F16B 5/0642 the plates being arranged one on top of the other and in full close contact with each other
• CPC Class Codes: G06F 17/11 for solving equations , e.g. nonlinear equations, general mathematical optimization problems optimization specially adapted for a specific administrative, business or logistic context G06Q10/04
• CPC Class Codes: G06F 30/15 Vehicle, aircraft or watercraft design
• CPC Class Codes: G06F 30/17 Mechanical parametric or variational design

Abstract

A method including receiving a joint parameter for a joint between at least two composite structural components, a ply stackup for each of the at least two composite structural components and an electromagnetic effect parameter in a controller, iteratively processing with the controller, the joint parameter and the ply stackup and outputting an optimized joint parameter based on at least a convergence of an electromagnetic effect resistance of the joint and the at least two composite structural components, and changing, with the controller, a value of one or more of the joint parameters and the ply stackup during the iterative processing to reach the convergence of the electromagnetic effect resistance.

Claims

1. A method comprising:

receiving a joint parameter for a joint between at least two composite structural components, a ply stackup for each of the at least two composite structural components and an electromagnetic effect parameter in a controller;

iteratively processing with the controller, the joint parameter and the ply stackup and outputting an optimized joint parameter based on at least a convergence of an electromagnetic effect resistance of the joint and the at least two composite structural components; and

changing, with the controller, a value of one or more of the joint parameters and the ply stackup during the iterative processing to reach the convergence of the electromagnetic effect resistance.

2. The method of claim 1, further comprising iteratively processing with the controller, the joint parameter and the ply stackup and outputting an optimized ply stackup for each of the at least two composite structural components based on at least a convergence of the electromagnetic effect resistance.

3. The method of claim 2, further comprising outputting with the controller, the optimized ply stackup for each of the at least two composite structural components based on the convergence of the electromagnetic effect resistance and a convergence of a weight of the at least two composite structural components.

4. The method of claim 2, further comprising determining, with the controller, a joint margin of safety, where the joint margin of safety is a constraint in the determination of the optimized ply stackup.

5. The method of claim 1, further comprising outputting, with the controller, the optimized joint parameter based on the convergence of the electromagnetic effect resistance and a convergence of a weight of the at least two composite structural components.

6. The method of claim 1, further comprising determining, with the controller, a joint margin of safety for the joint, where the joint margin of safety is a constraint in the determination of the optimized joint parameters.

7. The method of claim 1, further comprising changing, with the controller, a fastener location in the joint parameter during the iterative processing to reach the convergence of the electromagnetic effect resistance.

8. The method of claim 1, further comprising changing, with the controller, one or more of a number of plies and a ply orientation of each of the at least two composite structural components during the iterative processing to reach the convergence of the electromagnetic effect resistance.

9. A method comprising:

receiving a joint parameter for a joint between at least two composite structural components, a load profile for the joint and an electromagnetic effect parameter in a controller;

determining with the controller, a ply stackup for each of the at least two composite structural components;

determining with the controller, an electromagnetic effect resistance of the joint and the at least two composite structural components;

iteratively processing with the controller, the joint parameter and the ply stackup and outputting an optimized joint parameter based on at least a convergence of the electromagnetic effect resistance; and

changing with the controller, a value of one or more of the joint parameter and the ply stackup during the iterative processing to reach the convergence of at least the electromagnetic effect resistance.

10. The method of claim 9, further comprising iteratively processing with the controller, the joint parameter and the ply stackup and outputting an optimized ply stackup for each of the at least two composite structural components based on at least a convergence of the electromagnetic effect resistance.

11. The method of claim 10, further comprising outputting with the controller, the optimized ply stackup for each of the at least two composite structural components based on the convergence of the electromagnetic effect resistance and a convergence of a weight of the at least two composite structural components.

12. The method of claim 10, further comprising determining, with the controller, a joint margin of safety, where the joint margin of safety is a constraint in the determination of the optimized ply stackup.

13. The method of claim 9, further comprising outputting, with the controller, the optimized joint parameter based on the convergence of the electromagnetic effect resistance and a convergence of a weight of the at least two composite structural components.

14. The method of claim 9, further comprising determining, with the controller, a joint margin of safety for the joint, where the joint margin of safety is a constraint in the determination of the optimized joint parameters.

15. The method of claim 9, further comprising changing, with the controller, a fastener location in the joint parameter during the iterative processing to reach the convergence of the electromagnetic effect resistance.

16. The method of claim 9, further comprising changing, with the controller, one or more of a number of plies and a ply orientation of each of the at least two composite structural components during the iterative processing to reach the convergence of the electromagnetic effect resistance.

17. A computer program product having instructions stored on a non-transitory computer-readable storage medium which, when executed, configure a controller to:

receive joint parameters for a joint between at least two composite structural components;

receive a ply stackup for each of the at least two composite structural components;

receive electromagnetic effect parameters;

iteratively process the joint parameters, the ply stackup and the electromagnetic effect parameters and output optimized joint parameters based on at least a convergence of the electromagnetic effect parameters; and

change a value of one or more of the joint parameters and the ply stackup during the iterative processing to reach the convergence of the electromagnetic effect parameters.

18. The computer program product of claim 17, wherein the joint parameters and the ply stackup are iteratively processed and an optimized ply stackup for each of the at least two composite structural components is output based on at least a convergence of the electromagnetic effect resistance.

19. The method of claim 18, wherein the optimized ply stackup for each of the at least two composite structural components is output based on the convergence of the electromagnetic effect resistance and a convergence of a weight of the at least two composite structural components.

20. The method of claim 17, wherein the optimized joint parameters are output based on the convergence of the electromagnetic effect resistance and a convergence of a weight of the at least two composite structural components.