Mass loading method and system

A mass loading and mass technology, applied in instrumentation, calculation, electrical and digital data processing, etc., can solve problems such as difficulty in ensuring consistent moment distribution, stress concentration, and inability to truly reflect physical properties.

Active Publication Date: 2016-01-13
COMAC +1
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  • Abstract
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  • Claims
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Problems solved by technology

In fact, the mass is evenly and continuously distributed macroscopically. This kind of connection is relatively "stiff". The mass force will appear as a concentrated load behavior, and local stress concentration may occur, which cannot truly reflect its physical characteristics, and it is difficult to guarantee the moment The distribution remains the same before and after the pass

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  • Mass loading method and system
  • Mass loading method and system

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0037] figure 1 It is a flowchart of a mass loading method according to an embodiment of the present invention. figure 2 is a schematic diagram of a mass loading system according to an embodiment of the present invention. Figure 3a is the schematic diagram of mass point distribution after centralized preprocessing, Figure 3b is a schematic diagram of the structural node di...

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Abstract

The present invention relates to a mass loading method and system. The mass loading method and system applies the mass to load on a structural model. The method comprises: intensively preprocessing the mass to obtain multiple discrete mass points; carrying out finite element modeling on the structural model to obtain multiple structural nodes; establishing a sub-regional matching relation between the multiple discrete mass points and the multiple structural nodes; and using a three-dimensional interpolation function to carry out sub-regional interpolation, thereby realizing that the mass is uniformly loaded on the structural model. The mass loading method and system of the present invention exert the following beneficial technical effects that: the mass is enabled to distribute on the structural nodes of the structural model as uniform as possible, and the physical behavior can be truly reflected.

Description

technical field [0001] The present invention relates to mass loading methods and systems. Background technique [0002] Structural finite element simulation is often coupled with other disciplines to solve specific engineering physics problems. The mass inertial force as a continuous physical field also needs to be loaded on the structural model when necessary. The structural model is described by finite elements, discretized as a collection of beams, rods, shells or solid elements. Mass needs to be reasonably distributed on the corresponding structural nodes of the structural model. According to the natural division of components and areas, the quality is first processed into many independent quality points in a centralized manner. [0003] In the past, the mass point was directly associated with the nearest structural node, and the two were rigidly connected. All degrees of freedom of the mass point were completely dependent on the degrees of freedom of the structure, w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 程攀薛飞张淼刘晓燕卢勇谢萌张蕊丽张美红黄一帆
Owner COMAC
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