COMPUTER-ASSISTED METHOD FOR OPTIMISING SURFACES OF COMPOSITE-MATERIAL STRUCTURES

• US 20120123743A1
• Filed: 05/12/2010
• Published: 05/17/2012
• Est. Priority Date: 05/13/2009
• Status: Active Grant

• Current Assignee: Airbus Operations SL (Airbus SE)
• Original Assignee: Airbus Operations SL (Airbus SE)
• Inventors: Navarro Luna, Antonio, Valeriano La Torre, José
• Granted Patent: US 9,002,681 B2
• Time in Patent Office: Days
• US Class Current: 703/1
• CPC Class Codes: G06F 2113/24 Sheet material
• CPC Class Codes: G06F 2113/26 Composites
• CPC Class Codes: G06F 2113/28 Fuselage, exterior or interior
• CPC Class Codes: G06F 30/15 Vehicle, aircraft or watercraft design
• CPC Class Codes: Y02T 90/00 Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

Abstract

Computer-assisted method for optimising surfaces of composite-material structures as part of a design process that includes the following stages: a) Providing a multi-cell surface (11) of the structure obtained using aerodynamic calculations; b) Transforming said multi-cell surface (11) into an optimised surface (13) with fewer cells, concatenating contiguous cells and maintaining point and tangent continuity between them; c) Using said optimised surface (13) as geometric master when designing the components of the structure. The method is particularly applicable to the design of structures with a plurality of components and in particular fuselages of aircraft made of composite material. The invention also relates to a computer program for performing the method.

Claims

1-5. -5. (canceled)

6. Computer-assisted method for designing a composite-material structure with a plurality of components, wherein it includes the following stages:

a) Providing a multi-cell surface (11) of the structure obtained using aerodynamic calculations;

b) Transforming said multi-cell surface (11) into an optimised surface (13) with fewer cells, concatenating contiguous cells and maintaining point and tangent continuity between them;

c) Using said optimised surface (13) as master geometry when designing the components of the structure.