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Finite element working condition loading method and analysis method

An analysis method and finite element technology, applied in the field of simulation, can solve the problems of low efficiency of structural simulation analysis and achieve the effect of improving efficiency

Active Publication Date: 2020-06-16
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The main purpose of the present invention is to provide a finite element working condition loading method and analysis method to solve the problem of low efficiency of structural simulation analysis in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: A container flat car is a kind of railway freight equipment for carrying containers. It usually consists of a steel structure chassis and several sets of container lock seats. Depending on the length of the container being carried, the loading conditions are also different. For example, a 40-foot-long container truck may have more than a dozen sets of container locks in its longitudinal length: four 10-foot containers can be loaded; two 20-foot containers can be loaded; or two 10-foot containers can be loaded plus one 20 feet, etc., and the packing scheme will vary according to the specific requirements of users. In the design of container flat cars, each loading condition needs to be checked, and each loading condition must be compared with other working conditions with different boundary conditions (such as longitudinal, transverse, torsion, lifting, etc.) ) for synthetic check. Taking the Chinese railway standard TB / T1335 as an example, each packing s...

Embodiment 2

[0046] Embodiment two: the configuration form of railway special tank container: compared with the railway wagon of embodiment one, railway special tank container is two types of products that are all different in structure and working condition. applicability of the loading method.

[0047] Railway tank container is a kind of railway freight equipment for carrying liquid goods, which is composed of frame, tank body and lock seat. The working conditions are different from truck products, there are no longitudinal and torsional working conditions, but there are special working conditions such as stacking, liquid pressure, and stiffness. There are 14 statics assessment conditions for railway special tank containers in China, and each condition has more than 3 load combinations.

[0048] After loading the finite element working conditions in the configuration table form of this application, a set of configuration files is designed for this product. The configuration file descri...

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Abstract

The invention provides a finite element working condition loading method and an analysis method, the finite element working condition loading method is used for loading load and constraint on a predetermined structure, and the finite element working condition loading method comprises the following steps: determining the direction of a plurality of unit loads decomposed from the predetermined totalload according to the direction of the predetermined total load required to be applied to the predetermined structure; selecting a first predetermined area to which each unit load needs to be appliedon the predetermined structure; determining the load value of each unit load according to the load value of a predetermined total load required to be applied to the predetermined structure, so that the total load borne by the predetermined structure is met after the unit loads are combined; applying the direction and the load value of each unit load to a first predetermined region of a predetermined structure; selecting a second predetermined area to be subjected to constraint application on the predetermined structure; a degree of freedom is applied to a second predetermined region on the predetermined structure. The finite element working condition loading method solves the problem of low structural simulation analysis efficiency in the prior art.

Description

technical field [0001] The invention relates to the field of simulation technology, in particular to a finite element working condition loading method and analysis method. Background technique [0002] With the development of virtual simulation technology, the engineering application of simulation is increasing day by day, and finite element analysis technology has become indispensable in the development and design process of vehicle products. In the long-term engineering application, the company has also accumulated a lot of experience, and the product development work has also put forward higher requirements for the efficiency and quality of the simulation analysis. How to improve efficiency, ensure quality, effectively use the company's mature knowledge, conveniently complete technology inheritance, and ensure the work level of the entire simulation team in the simulation work are the goals that the company has been pursuing. [0003] The finite element analysis process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F111/04G06F119/14
Inventor 张馨魏鸿亮李立东马巧艳张露颖
Owner CRRC QIQIHAR ROLLING CO LTD
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