A modeling method for rapidly changing appearance parameters of wings

Abstract

The invention discloses a modeling method for rapidly changing appearance parameters of a wing, and relates to a modeling method for rapidly changing the appearance parameters of the wing. For an initial wing, the appearance parameters of the initial wing have a certain variable space, so that a model needs to be continuously newly built along with the change of the appearance parameters. At present, a common method for reconstructing a model through variable parameters reconstructs a geometric model through CAD software and then imports the geometric model into finite element analysis software for follow-up definition, and due to the fact that two kinds of software are involved, the conventional methods are complex. Under the condition of an existing initial model, the coordinates of themidpoint of the model file of the initial model are calculated again according to a certain method, a new model file is written in, and then a new model with the appearance parameters changed can be obtained. According to the method, thirteen parameters of the wing can be subjected to parameter changing, simplicity and effectiveness are achieved, and the method is suitable for the newly-built wing(the same as the initial wing in configuration) and more suitable for the wing appearance parameter optimization process.

Description

technical field [0001] The invention relates to a modeling method for rapidly changing shape parameters of an airfoil. Background technique [0002] For an initial wing model, there is still some room for change in its shape parameters, but with the modification of the shape parameters, the structural finite element model and aerodynamic model also need to be updated accordingly, thus facing the need to remodel. question. Especially in the optimization process, the shape parameters of the wing need to be repeatedly designed and modified, and a large amount of design time will be consumed in modifying the model, especially for the more complex 3D finite element model of the wing. [0003] The establishment of the finite element model usually includes the establishment of the geometric model, the division of the finite element mesh, and the definition of materials, constraints, loads and other necessary processes. The establishment of the geometric model can be realized in C...

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Problems solved by technology

[0002] For an initial wing model, there is still some room for change in its shape parameters, but with the modification of the shape parameters, the structural finite element model and aerodynamic model also need to be updated accordingly, thus facing the need to remodel. question

Especially in the optimization process, the shape parameters of the wing need to be repeatedly designed and modified, and a lot of design time will be spent on modifying the model. For the more complex 3D plate-bar finite element model of the wing, it is especially difficult

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