CN107103119B - An automatic modeling method for tire finite element analysis - Google Patents
An automatic modeling method for tire finite element analysis Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及有限元分析领域，轮胎分析领域，特别涉及一种轮胎有限元分析自动化建模方法。The invention relates to the field of finite element analysis and the field of tire analysis, in particular to an automatic modeling method for tire finite element analysis.
背景技术Background technique
样胎试验是传统轮胎结构设计常用方法，其消耗大量人力物力，且效率较低，轮胎研发周期长。而轮胎有限元技术在现代轮胎研发设计中起了极其重要的作用，几乎能对轮胎的设计过程到生产过程进行全生命周期分析，其大大缩短了轮胎的开发周期，节约了设计成本。Prototype tire testing is a common method for traditional tire structure design, which consumes a lot of manpower and material resources, and has low efficiency and long tire development cycle. The tire finite element technology plays an extremely important role in the development and design of modern tires. It can almost analyze the entire life cycle of the tire from the design process to the production process, which greatly shortens the tire development cycle and saves design costs.
轮胎有限元分析模型的建立过程非常复杂，需花大量时间进行模型前处理，且专业度要求比较高，不利于在轮胎企业中大范围推广该技术。因而需要发明一种有限元自动化建模方法。The establishment process of the tire finite element analysis model is very complicated, and it takes a lot of time to pre-process the model, and the requirements for professionalism are relatively high, which is not conducive to the large-scale promotion of this technology in tire companies. Therefore, it is necessary to invent a finite element automatic modeling method.
现有的轮胎有限元分析自动化建模方法对模型做了很大的简化，分析功能有限，且分析精度较差。因而亟需提出一套精度较高且对非专业人员操作要求较低的轮胎有限元分析自动化建模方法。The existing tire finite element analysis automatic modeling method greatly simplifies the model, the analysis function is limited, and the analysis accuracy is poor. Therefore, it is urgent to propose a set of automatic tire finite element analysis modeling methods with high precision and low requirements for non-professional operation.
发明内容Contents of the invention
针对现有技术中存在不足，本发明提供了一种轮胎有限元分析自动化建模方法，根据轮胎的材料分布图，自动建立轮胎有限元分析模型，其精度较高。Aiming at the deficiencies in the prior art, the present invention provides an automatic tire finite element analysis modeling method, which automatically establishes a tire finite element analysis model according to the material distribution diagram of the tire with high precision.
本发明是通过以下技术手段实现上述技术目的的。The present invention achieves the above-mentioned technical purpose through the following technical means.
一种轮胎有限元分析自动化建模方法，包括如下步骤：An automatic modeling method for tire finite element analysis, comprising the steps of:
S1：解析轮胎材料分布图，具体如下：S1: Analyze the tire material distribution map, as follows:
S11：获取轮胎材料分布图；S11: Obtain a tire material distribution map;
S12：根据轮胎材料分布图做出轮胎断面帘线图；S12: Make a tire section cord diagram according to the tire material distribution diagram;
S13：将轮胎断面帘线图中的各轮胎断面帘线进行命名，并保存；S13: Name and save each tire section cord in the tire section cord map;
S14：提取轮胎材料分布图中独立分布封闭区域，作为轮胎断面橡胶部分；S14: extract the independent distribution closed area in the tire material distribution map as the rubber part of the tire cross section;
S15：将各轮胎断面部分橡胶进行命名，并保存；S15: Name and save the rubber of each tire cross-section;
S2：对各轮胎断面橡胶部分网格划分，得出轮胎断面部分橡胶网格的质量指数；S2: Mesh division of the rubber part of each tire section to obtain the quality index of the rubber mesh of the tire section part;
S3：对各轮胎断面帘线网格划分，得出轮胎断面帘线网格的质量指数；S3: Divide the grid of each tire section cord to obtain the quality index of the tire section cord grid;
S4：对轮胎断面橡胶部分网格和断面帘线网格质量检查；S4: Check the quality of the mesh of the rubber part of the tire section and the mesh of the section cord;
S5：轮胎断面接触面建立；S5: The contact surface of the tire section is established;
S6：对轮胎有限元分析。S6: The finite element analysis of the tire.
进一步，所述S2具体包括如下步骤：Further, the S2 specifically includes the following steps:
S21：提取各轮胎断面橡胶部分文件；S21: extract the rubber part file of each tire section;
S22：建立各轮胎断面部分橡胶的面域；S22: Establishing the area of rubber in each tire cross-section;
S23：消除各轮胎断面部分橡胶面域之间的间隙；S23: Eliminate the gap between the rubber surfaces of each tire section;
S24：设定各轮胎断面部分橡胶面域的网格大小与网格类型；S24: setting the grid size and grid type of the rubber surface domain of each tire section;
S25：划分各轮胎断面部分橡胶的网格，得出轮胎断面部分橡胶网格的质量指数。S25: Divide the grids of the rubber in each tire cross-section, and obtain the quality index of the rubber grids in the tire cross-section.
进一步，所述S3具体包括如下步骤：Further, the S3 specifically includes the following steps:
S31：提取各轮胎断面帘线文件；S31: extracting cord files of each tire section;
S32：设定各轮胎断面帘线的网格大小与网格类型；S32: setting the grid size and grid type of each tire section cord;
S33：划分各轮胎断面帘线的网格，得出轮胎断面帘线网格的质量指数。S33: Dividing the grids of the cords of each tire section to obtain the quality index of the grids of the tire section cords.
进一步，所述S4具体包括如下步骤：Further, the S4 specifically includes the following steps:
S41：设定轮胎断面部分橡胶的网格和断面帘线的网格标准质量指数；S41: setting the grid standard quality index of the rubber grid of the tire section and the grid of the section cord;
S42：若S2中得出的轮胎断面部分橡胶网格的质量指数小于或者等于设定的轮胎断面部分橡胶的网格标准质量指数，进入S43；否则，跳转S2；S42: If the quality index of the rubber grid of the tire section part obtained in S2 is less than or equal to the set standard quality index of the rubber grid of the tire section part, go to S43; otherwise, skip to S2;
S43：若S3中得出的轮胎断面帘线网格的质量指数小于或者等于设定的轮胎断面帘线网格标准质量指数，进入S5；否则，跳转S3。S43: If the quality index of the tire section cord grid obtained in S3 is less than or equal to the set standard quality index of the tire section cord grid, go to S5; otherwise, go to S3.
进一步，所述S5具体包括如下步骤：Further, said S5 specifically includes the following steps:
S51：重新排列轮胎断面网格的单元和节点顺序；S51: Rearranging the order of elements and nodes of the tire section grid;
S52：提取轮胎断面上与路面和轮辋接触处对应的节点编号；S52: extracting the node number corresponding to the contact position between the tire section and the road surface and the rim;
S53：在相应节点处建立接触面。S53: Establish contact surfaces at corresponding nodes.
进一步，所述S6具体包括如下步骤：Further, said S6 specifically includes the following steps:
S61：设定轮胎分析工况的边界条件；S61: setting the boundary conditions of tire analysis working conditions;
S62：设定轮胎分析工况的载荷；S62: setting the load of the tire analysis working condition;
S63：轮胎有限元分析。S63: Tire finite element analysis.
本发明的有益效果在于：The beneficial effects of the present invention are:
1.本发明所述的轮胎有限元分析自动化建模方法，可以根据轮胎的材料分布图，自动建立轮胎有限元分析模型，其精度较高。1. The tire finite element analysis automatic modeling method of the present invention can automatically establish a tire finite element analysis model according to the material distribution diagram of the tire, and its precision is higher.
2.本发明所述的轮胎有限元分析自动化建模方法，能使没有经验的技术人员快速熟悉轮胎有限元分析流程，且允许具有一定经验的技术人员在建立轮胎模型过程中自由部分参数。2. The tire finite element analysis automatic modeling method described in the present invention can make inexperienced technicians quickly familiar with the tire finite element analysis process, and allows experienced technicians to freely part of the parameters in the tire model building process.
3.本发明所述的轮胎有限元分析自动化建模方法，能提高企业的研发效率，缩短研发周期，减少研发成本。3. The tire finite element analysis automatic modeling method described in the present invention can improve the research and development efficiency of enterprises, shorten the research and development cycle, and reduce research and development costs.
附图说明Description of drawings
图1为本发明所述轮胎材料分布图。Fig. 1 is a distribution diagram of tire materials according to the present invention.
图2为本发明所述轮胎断面帘线图。Fig. 2 is a cross-sectional cord diagram of the tire of the present invention.
图3为本发明所述轮胎材料分布图一个独立封闭区域。Fig. 3 is an independent enclosed area of the material distribution map of the tire according to the present invention.
图4为本发明所述轮胎断面消除间隙的各部分橡胶的面域。Fig. 4 is the rubber area of each part of the tire section eliminating gaps according to the present invention.
图5为本发明所述轮胎断面各部分橡胶面域的网格大小。Fig. 5 is the grid size of the rubber area of each part of the tire section according to the present invention.
图6为本发明所述轮胎断面帘线网格大小。Fig. 6 is the grid size of tire section cords according to the present invention.
图7为本发明所述轮胎断面接触面。Fig. 7 is the cross-sectional contact surface of the tire of the present invention.
图8为图7的局部放大图。FIG. 8 is a partially enlarged view of FIG. 7 .
图9为本发明所述轮胎有限元分析。Fig. 9 is the finite element analysis of the tire of the present invention.
具体实施方式Detailed ways
下面结合附图以及具体实施例对本发明作进一步的说明，但本发明的保护范围并不限于此。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.
一种轮胎有限元分析自动化建模方法，包括如下步骤：An automatic modeling method for tire finite element analysis, comprising the steps of:
S1：解析轮胎材料分布图，具体如下：S1: Analyze the tire material distribution map, as follows:
S11：获取轮胎材料分布图；S11: Obtain a tire material distribution map;
S12：根据轮胎材料分布图做出轮胎断面帘线图；S12: Make a tire section cord diagram according to the tire material distribution diagram;
S13：将轮胎断面帘线图中的各轮胎断面帘线进行命名，并保存；S13: Name and save each tire section cord in the tire section cord map;
S14：提取轮胎材料分布图中独立分布封闭区域，作为轮胎断面橡胶部分；S14: extract the independent distribution closed area in the tire material distribution map as the rubber part of the tire cross section;
S15：将各轮胎断面部分橡胶进行命名，并保存；S15: Name and save the rubber of each tire cross-section;
S2：对各轮胎断面橡胶部分网格划分，得出轮胎断面部分橡胶网格的质量指数；S2: Mesh division of the rubber part of each tire section to obtain the quality index of the rubber mesh of the tire section part;
S3：对各轮胎断面帘线网格划分，得出轮胎断面帘线网格的质量指数；S3: Divide the grid of each tire section cord to obtain the quality index of the tire section cord grid;
S4：对轮胎断面橡胶部分网格和断面帘线网格质量检查；S4: Check the quality of the mesh of the rubber part of the tire section and the mesh of the section cord;
S5：轮胎断面接触面建立；S5: The contact surface of the tire section is established;
S6：对轮胎有限元分析。S6: The finite element analysis of the tire.
所述S2具体包括如下步骤：Said S2 specifically includes the following steps:
S21：提取各轮胎断面橡胶部分文件；S21: extract the rubber part file of each tire section;
S22：建立各轮胎断面部分橡胶的面域；S22: Establishing the area of rubber in each tire cross-section;
S23：消除各轮胎断面部分橡胶面域之间的间隙；S23: Eliminate the gap between the rubber surfaces of each tire section;
S24：设定各轮胎断面部分橡胶面域的网格大小与网格类型；S24: setting the grid size and grid type of the rubber surface domain of each tire section;
S25：划分各轮胎断面部分橡胶的网格，得出轮胎断面部分橡胶网格的质量指数。S25: Divide the grids of the rubber in each tire cross-section, and obtain the quality index of the rubber grids in the tire cross-section.
所述S3具体包括如下步骤：The S3 specifically includes the following steps:
S31：提取各轮胎断面帘线文件；S31: extracting cord files of each tire section;
S32：设定各轮胎断面帘线的网格大小与网格类型；S32: setting the grid size and grid type of each tire section cord;
S33：划分各轮胎断面帘线的网格，得出轮胎断面帘线网格的质量指数。S33: Dividing the grids of the cords of each tire section to obtain the quality index of the grids of the tire section cords.
所述S4具体包括如下步骤：Described S4 specifically comprises the following steps:
S41：设定轮胎断面部分橡胶的网格和断面帘线的网格标准质量指数；S41: setting the grid standard quality index of the rubber grid of the tire section and the grid of the section cord;
S42：若S2中得出的轮胎断面部分橡胶网格的质量指数小于或者等于设定的轮胎断面部分橡胶的网格标准质量指数，进入S43；否则，跳转S2；S42: If the quality index of the tire section rubber grid obtained in S2 is less than or equal to the set tire section rubber grid standard quality index, go to S43; otherwise, skip to S2;
S43：若S3中得出的轮胎断面帘线网格的质量指数小于或者等于设定的轮胎断面帘线网格标准质量指数，进入S5；否则，跳转S3。S43: If the quality index of the tire section cord grid obtained in S3 is less than or equal to the set standard quality index of the tire section cord grid, go to S5; otherwise, go to S3.
所述S5具体包括如下步骤：Described S5 specifically comprises the following steps:
S51：重新排列轮胎断面网格的单元和节点顺序；S51: Rearranging the order of elements and nodes of the tire section grid;
S52：提取轮胎断面上与路面和轮辋接触处对应的节点编号；S52: extracting the node number corresponding to the contact position between the tire section and the road surface and the rim;
S53：在相应节点处建立接触面。S53: Establish contact surfaces at corresponding nodes.
所述S6具体包括如下步骤：Described S6 specifically comprises the following steps:
S61：设定轮胎分析工况的边界条件；S61: setting the boundary conditions of tire analysis working conditions;
S62：设定轮胎分析工况的载荷；S62: setting the load of the tire analysis working condition;
S63：轮胎有限元分析。S63: Tire finite element analysis.
具体实施方式：Detailed ways:
为清楚详细阐述本发明的方法，取轮胎材料分布图如图1所示，具体包括：For clearly setting forth the method of the present invention in detail, get the tire material distribution diagram as shown in Figure 1, specifically include:
S1：解析轮胎材料分布图，具体如下：S1: Analyze the tire material distribution map, as follows:
S11：获取轮胎材料分布图的IGES文件；S11: Obtain the IGES file of the tire material distribution map;
S12：根据轮胎材料分布图做出轮胎断面帘线图，如图2所示；S12: Make tire section cord diagram according to the tire material distribution diagram, as shown in Figure 2;
S13：将轮胎断面帘线图中的各轮胎断面帘线进行命名，并保存成IGES文件；S13: name each tire section cord in the tire section cord diagram, and save it as an IGES file;
S14：提取轮胎材料分布图中独立分布封闭区域(图3为其中一个独立封闭区域)，作为轮胎断面橡胶部分；S14: extract the independent distribution closed area in the tire material distribution map (Figure 3 is one of the independent closed areas), as the rubber part of the tire section;
S15：将各轮胎断面部分橡胶进行命名，并保存成IGES文件。S15: Name the rubber of each tire section and save it as an IGES file.
S2：对各轮胎断面橡胶部分网格划分，得出轮胎断面部分橡胶网格的质量指数，具体如下：S2: Divide the rubber mesh of each tire section to obtain the quality index of the rubber mesh of the tire section, as follows:
S21：提取各轮胎断面橡胶部分IGES文件；S21: extract the IGES file of the rubber part of each tire section;
S22：建立各轮胎断面部分橡胶的面域；S22: Establishing the area of rubber in each tire cross-section;
S23：消除各轮胎断面部分橡胶面域之间的间隙，如图4所示；S23: Eliminate the gaps between the rubber surfaces of each tire section, as shown in Figure 4;
S24：设定各轮胎断面部分橡胶面域的网格大小与网格类型，如图5所示；S24: Set the grid size and grid type of the rubber surface domain of each tire section, as shown in Figure 5;
S25：划分各轮胎断面部分橡胶的网格，得出轮胎断面部分橡胶网格的质量指数。S25: Divide the grids of the rubber in each tire cross-section, and obtain the quality index of the rubber grids in the tire cross-section.
S3：对各轮胎断面帘线网格划分，得出轮胎断面帘线网格的质量指数，具体如下：S3: Divide the grid of each tire section cord to obtain the quality index of the tire section cord grid, as follows:
S31：提取各轮胎断面帘线文件；S31: extracting cord files of each tire section;
S32：设定各轮胎断面帘线的网格大小与网格类型，如图6所示；S32: Set the grid size and grid type of each tire section cord, as shown in Figure 6;
S33：划分各轮胎断面帘线的网格，得出轮胎断面帘线网格的质量指数。S33: Dividing the grids of the cords of each tire section to obtain the quality index of the grids of the tire section cords.
S4：对轮胎断面橡胶部分网格和断面帘线网格质量检查，具体如下：S4: Check the quality of the mesh of the rubber part of the tire section and the mesh of the section cord, as follows:
S41：设定轮胎断面部分橡胶的网格和断面帘线的网格标准质量指数；S41: setting the grid standard quality index of the rubber grid of the tire section and the grid of the section cord;
S42：若S2中得出的轮胎断面部分橡胶网格的质量指数小于或者等于设定的轮胎断面部分橡胶的网格标准质量指数，进入S43；否则，跳转到S2中第S23步骤，重新设定各轮胎断面部分橡胶面域的网格大小与网格类型；S42: If the quality index of the rubber grid of the rubber section of the tire section obtained in S2 is less than or equal to the set standard quality index of the rubber grid of the tire section section, go to S43; otherwise, jump to step S23 in S2 and reset Determine the grid size and grid type of the rubber surface domain of each tire section;
S43：若S3中得出的轮胎断面帘线网格的质量指数小于或者等于设定的轮胎断面帘线网格标准质量指数，进入S5；否则，跳转S3中第S32步骤，重新设定各轮胎断面帘线的网格大小与网格类型。S43: If the quality index of the tire section cord grid obtained in S3 is less than or equal to the set standard quality index of the tire section cord grid, go to S5; otherwise, jump to step S32 in S3 and reset each Mesh size and mesh type for tire section cords.
S5：轮胎断面接触面建立，具体如下：S5: The contact surface of the tire section is established, the details are as follows:
S51：重新排列轮胎断面网格的单元和节点顺序；S51: Rearranging the order of elements and nodes of the tire section grid;
S52：提取轮胎断面上与路面和轮辋接触处对应的节点编号；S52: extracting the node number corresponding to the contact position between the tire section and the road surface and the rim;
S53：在相应节点处建立接触面，如图7和局部放大如图8所示。S53: Establish contact surfaces at corresponding nodes, as shown in FIG. 7 and partially enlarged in FIG. 8 .
S6：对轮胎有限元分析，具体如下：S6: The finite element analysis of the tire is as follows:
S61：设定轮胎分析工况的边界条件；S61: setting the boundary conditions of tire analysis working conditions;
S62：设定轮胎分析工况的载荷；S62: setting the load of the tire analysis working condition;
S63：轮胎有限元分析，如图9所示。S63: Tire finite element analysis, as shown in Fig. 9 .
所述实施例为本发明的优选的实施方式，但本发明并不限于上述实施方式，在不背离本发明的实质内容的情况下，本领域技术人员能够做出的任何显而易见的改进、替换或变型均属于本发明的保护范围。The described embodiment is a preferred implementation of the present invention, but the present invention is not limited to the above-mentioned implementation, without departing from the essence of the present invention, any obvious improvement, replacement or modification that those skilled in the art can make Modifications all belong to the protection scope of the present invention.
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| CN108304632A (en) * | 2018-01-22 | 2018-07-20 | 青岛森麒麟轮胎股份有限公司 | Creation method, equipment, storage medium and the computer of tire finite element model |
| CN108287975B (en) * | 2018-02-05 | 2022-01-21 | 洛阳理工学院 | Rapid implementation method for tire finite element two-dimensional meshing |
| CN108614951B (en) * | 2018-06-09 | 2022-05-20 | 风神轮胎股份有限公司 | Finite element analysis method for identifying bead bulge position of all-steel radial tire |
| CN114491812B (en) * | 2022-01-20 | 2024-10-29 | 吉林大学 | Finite element modeling method for aircraft tire cord reinforced rubber composite material |
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