Process for optimizing the structural design of a stiffened composite material panel
First Claim
1. A computer-aided process for carrying out the structural design of a stiffened panel (9) made of a composite material, optimizing a target variable, characterized in that it comprises the following steps:
- a) Obtaining a Simulation Model (25) of the stiffened panel (9) including all the relevant information for the structural analysis thereof from a General Finite Element Model (23);
b) Providing the definition of at least one modifiable design variable of the stiffened panel (9);
c) Providing the definition of at least one restrictive condition that the design of the stiffened panel (9) must meet;
d) Providing at least one simulation expert module (55) of a family of failure modes of the stiffened panel (9);
e) Iteratively modifying the design variables of the Simulation Model (25) of the stiffened panel (9) for the purpose of optimizing the target variable, taking into account in each iteration the load distribution changes resulting from the previous iteration, and verifying that said at least one restrictive condition as well as the safety margin associated to the pre-established failure modes are met by using said at least one simulation expert module (55).
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Accused Products
Abstract
The present invention relates to a computer-aided process for carrying out the structural design of a stiffened panel (9) made of a composite material, optimizing a target variable, comprising a first preparation phase (21) in which a Simulation Model (25) of the stiffened panel (9) with all the relevant information for the structural analysis thereof is obtained from a General Finite Element Model (23) and the modifiable variables and the restrictions (27) are defined, and a second simulation phase (51) in which the design variables are iteratively modified for the purpose of optimizing the target variable, taking into account in each iteration the load distribution changes resulting from the previous iteration, and verifying that the restrictive conditions and the safety margins associated to the pre-established failure modes are met using for that purpose simulation expert modules (55) of families of failure modes.
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Citations
16 Claims
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1. A computer-aided process for carrying out the structural design of a stiffened panel (9) made of a composite material, optimizing a target variable, characterized in that it comprises the following steps:
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a) Obtaining a Simulation Model (25) of the stiffened panel (9) including all the relevant information for the structural analysis thereof from a General Finite Element Model (23); b) Providing the definition of at least one modifiable design variable of the stiffened panel (9); c) Providing the definition of at least one restrictive condition that the design of the stiffened panel (9) must meet; d) Providing at least one simulation expert module (55) of a family of failure modes of the stiffened panel (9); e) Iteratively modifying the design variables of the Simulation Model (25) of the stiffened panel (9) for the purpose of optimizing the target variable, taking into account in each iteration the load distribution changes resulting from the previous iteration, and verifying that said at least one restrictive condition as well as the safety margin associated to the pre-established failure modes are met by using said at least one simulation expert module (55). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification