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Hexahedral mesh division complex pattern tire finite element modeling method

A complex pattern and mesh division technology, applied in the field of tire finite element modeling, can solve the problems of complex modeling and inaccurate finite element models, and achieve the effects of accurate finite element models, reducing binding contact, and improving efficiency

Active Publication Date: 2019-10-22
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0005] In order to solve the problems of inaccurate finite element model and complex modeling of existing complex tread tires, the present invention proposes a finite meta-modeling approach

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  • Hexahedral mesh division complex pattern tire finite element modeling method
  • Hexahedral mesh division complex pattern tire finite element modeling method
  • Hexahedral mesh division complex pattern tire finite element modeling method

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Embodiment Construction

[0031] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings, which are only preferred embodiments of the present invention, but the implementation and protection scope of the invention are not limited thereto.

[0032] Taking a certain type of off-road vehicle pattern tire as an example, a finite element modeling method for complex pattern tires divided by hexahedral meshes includes steps:

[0033] S1. Draw the two-dimensional cross-sectional geometric model of the tire, carry out the tire segmentation process in advance according to the characteristics of the tread block, and write down the total number of segments N, which is 46 in this embodiment;

[0034] S2. Set the coordinate points of the key geometric features of the tread pattern block, and project the geometric feature points of a segment of the pattern block to a two-dimensional plane grid through segmental expression;

[0035] S3. Project...

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Abstract

The invention discloses a hexahedral mesh division complex pattern tire finite element modeling method which comprises the following steps: S1, drawing a tire two-dimensional section geometric model,performing tire segmentation processing in advance according to the characteristics of tread pattern blocks, and recording the total number N of segments; S2, projecting the geometrical characteristicpoints of a section of pattern block to a two-dimensional plane grid through segmentation expression; S3, projecting the constructed two-dimensional planar grid nodes onto the inner cavity surface ofthe tire, and generating a section of three-dimensional tread and pattern block grid through layered stretching of the grid nodes; S4, drawing a tire side two-dimensional plane grid, rotating the tire side two-dimensional plane grid into a three-dimensional grid according to a corresponding angle, and combining the three-dimensional grid with grid nodes of the tread; and S5, repeatedly rotating and copying the generated three-dimensional tire grid around the central axis of the tire to generate N sections of three-dimensional tire grids, and obtaining a complex pattern tire finite element model divided by hexahedron grids. According to the method, the complex pattern blocks and the tread are connected by adopting grid common-node integrated modeling, so that the method is more accurate and higher in solving efficiency.

Description

technical field [0001] The invention relates to a tire finite element modeling method, in particular to a complex pattern tire finite element modeling method capable of realizing hexahedral grid division, which can more accurately analyze the force analysis of complex pattern tires. Background technique [0002] As an important component of the vehicle, tires not only support the body load, transmit driving force and steering force to the ground, but also undertake the functions of buffering and shock absorption. Tread pattern is one of the most important parameters of tires. In order to meet the requirements of different vehicles running on different road surfaces, the tread pattern is often designed in various shapes, such as ordinary pattern, mixed pattern and off-road pattern. A large number of practical experience and test data show that the pros and cons of tire pattern design have a significant impact on the driving and braking performance, rolling resistance, steerin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/20
CPCG06T17/20G06F30/23Y02T90/00
Inventor 臧孟炎杨鹏
Owner SOUTH CHINA UNIV OF TECH
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