Quick loading method for structural finite element

A finite element and fast technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of difficult to accurately capture the loading position, the accuracy of the results cannot be guaranteed, time-consuming and labor-intensive, etc., to achieve fast and efficient reuse, Effects that simplify preprocessing and are easy to reuse

Pending Publication Date: 2021-10-26
江苏锐天智能科技股份有限公司
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Problems solved by technology

These two methods will use the station point as an intermediate transition to distribute. This method removes the relative position relationship between the load point and the finite element through the station point, which leads to the problem of uneven distribution.
[0004] For the finite element model of complex structure, it is difficult to accurately capture the loading position even if it is picked up by pre-processing tools such as 3D display. In addition, there are many factors such as structural configuration changes and actual working conditions. Time-consuming and labor-intensive, the accuracy of the results cannot be guaranteed

Method used

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  • Quick loading method for structural finite element
  • Quick loading method for structural finite element
  • Quick loading method for structural finite element

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Embodiment Construction

[0016] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] figure 1 , figure 2 with image 3 A structural finite element rapid loading method is shown, select the original load of the structure, and classify the original load: divided into distributed surface load, concentrated force and discrete point force;

[0018] For the surface loading, the cubic spline interpolation and the polynomial algorithm above the second degree are directly used to perform one-dimensional mapping from two directions in the surface (usually the x direction and the y direction), and then perform coupling and generate a formatted card Force card to Taking the mapping of distributed aerodynamic loads to finite element loads as an ...

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Abstract

The invention relates to the technical field of fast loading methods for finite element analysis loads, in particular to a fast loading method for structural finite elements, which comprises the following steps of: selecting original structural loads, and classifying the original loads into distributed surface loads, concentrated forces and discrete point forces. According to the structural finite element rapid loading method, the external load is rapidly mapped to the coordinate positions corresponding to the nodes and the units of the finite element model, rapid loading from the structural load to the finite element model can be achieved, a formatted loading card is generated, and the method is rapid, efficient and convenient to reuse. According to the method, the finite element loading efficiency can be greatly improved, and the pretreatment work is simplified.

Description

technical field [0001] The invention relates to the technical field of fast loading methods for finite element analysis loads, in particular to a fast loading method for structural finite elements. Background technique [0002] For complex finite element models, the application of finite element loads under multiple working conditions is a complicated and highly arbitrary task, and the loading method of finite element models, the distribution and value of input loads, have great influence on the accuracy of finite element calculation results. Responsibility is decisive, which requires an efficient, accurate and simple loading scheme. [0003] The traditional load calculation does not have the assistance of 3D display in the early stage. The first common method is to distribute the original load to the nearest station node, and then distribute the station node to the finite element nodes around the station; the second is to distribute the original load It is allocated to the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F119/14
CPCG06F30/23G06F2119/14
Inventor 常兵薛桢一常毅飞樊荣
Owner 江苏锐天智能科技股份有限公司
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