Rapid complex plate and shell thickness optimization design method based on maximum displacement

A technology of maximum displacement and optimized design, applied in design optimization/simulation, calculation, special data processing application, etc., can solve the problems of difficult plate and shell theoretical calculation, complex plate and shell structure, etc., to achieve the effect of small calculation amount and easy solution.

Inactive Publication Date: 2017-10-24
GUIZHOU UNIVERSITY OF FINANCE AND ECONOMICS
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for rapid optimization design of complex plate and shell thickness based on maximum displacement, which can quickly calculate the optimal t

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  • Rapid complex plate and shell thickness optimization design method based on maximum displacement
  • Rapid complex plate and shell thickness optimization design method based on maximum displacement
  • Rapid complex plate and shell thickness optimization design method based on maximum displacement

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the content of the present invention is not limited to the stated scope.

[0031] Embodiments of the invention: attached figure 1 It is the method step diagram of the present invention, according to the theoretical relationship between the stress, load, displacement and stiffness matrix in the finite element theory and the plate and shell theory, derive the optimal plate and shell thickness calculation formula based on the maximum displacement, the concrete method of the present invention The implementation steps are: Step 1, assuming the thickness is h 1 and h cr The plate and shell structure is a plate and shell structure with the same network type and network division, boundary conditions and loads, anisotropic materials, and only different thicknesses, where the thickness h 1 Some arbitrary known initial value, the thickness h cr unknown, h cr...

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Abstract

The invention relates to a rapid complex plate and shell thickness optimization design method based on maximum displacement, and belongs to the field of rapid mechanical structure optimization design. According to a finite element theory and the theoretical relation among stress, load, displacement and a rigidity matrix in a plate and shell theory, an optimal plate and shell thickness calculation formula based on maximum displacement is deduced. As the influence of complex structural characteristics on structural performance cannot be ignored, the thickness of a complex plate and shell structure is difficultly calculated directly by the plate and shell theory. The method can be used for rapidly calculating the optimal solution of the complex plate and shell structure meeting corresponding critical maximum displacement requirements, and has the advantages of rapidness, small calculation amount, easiness in solution and the like.

Description

technical field [0001] The invention belongs to the field of rapid optimization design of mechanical structures, and relates to a method for rapid optimization design of complex plate shell thickness based on maximum displacement. Background technique [0002] Plate shell is a typical engineering component, and its thickness dimension is much smaller than other characteristic dimensions. As complex plate and shell structures are widely used in aerospace, instrument components and marine engineering, their safety has attracted more and more attention, and the design of plate and shell thickness is directly related to its mechanical properties. Therefore, it is particularly important for designers to determine the plate thickness quickly and accurately. [0003] Since the influence of complex structural features on structural performance cannot be ignored, it is difficult to directly calculate the thickness of complex plate and shell structures using plate and shell theory. ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23
Inventor 吴盛彬薛承梦令狐新荣
Owner GUIZHOU UNIVERSITY OF FINANCE AND ECONOMICS
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