Analysis method, device and electronic equipment for tire bead durability performance

Abstract

The present invention provides a tire end-end durability analysis method, device and electronic device, including: establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file; performing text interception on the text information in the inp input file to obtain the contact node between the rim and the tire end-end; performing text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed; performing data screening on the slip data to obtain the slip circumferential node position and slip data; determining the slip amount generated by the contact node when the tire rolls one circle based on the slip data; and analyzing the durability of the tire end-end based on the slip amount. In this method, it is not only convenient to display the data in segments, but also convenient to analyze the durability of the tire end-end.

Description

Technical Field

[0001] The present invention relates to the field of tire technology, and in particular to a tire bead durability analysis method, device and electronic equipment. Background Art

[0002] The contact surface between the tire bead and the rim is a part that is prone to fatigue damage. Bead debonding, wear, rubber aging and other phenomena often occur. These phenomena directly affect the durability of the tire and shorten the service life of the tire. Different bead designs have a certain impact on the fatigue durability of the bead. The existing finite element analysis software can calculate the contact pressure, shear force and cumulative slip between the contact pairs generated when the bead contacts the rim. With the help of friction work theory, the wear of the bead under assembly pressure can be evaluated. However, the slip amount finally output by the software during finite element calculation includes the slip amount during the inflation process and the loading process. It is not only inconvenient to display the data in segments, but also inconvenient to analyze the durability performance of the tire bead. Summary of the invention

[0003] In view of this, the object of the present invention is to provide a tire bead durability analysis method, device and electronic equipment, which not only facilitates segmented display of data, but also facilitates analysis of the tire bead durability performance.

[0004] In the first aspect, an embodiment of the present invention provides a method for analyzing the durability performance of a tire mouth, comprising: establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file; performing text interception on the text information in the inp input file to obtain the contact node between the rim and the tire mouth; performing text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed; performing data screening on the slip data to obtain the slip circumferential node position and slip data; determining the slip amount generated by the contact node when the tire rolls one circle based on the slip data; and analyzing the durability performance of the tire mouth based on the slip amount.

[0005] In a preferred embodiment of the present invention, the above-mentioned two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model generate the inp input file and the dat simulation result file, including: naming the side of the tire mouth that contacts the rim, and performing a two-dimensional inflation simulation; using the two-dimensional model to rotate N sections circumferentially as a three-dimensional model to perform a three-dimensional inflation loading analysis; after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, adding the CDISP data of the contact surface between the rim and the tire mouth to generate the corresponding inp input file and dat simulation result file.

[0006] In a preferred embodiment of the present invention, the above-mentioned text interception of the text information in the inp input file to obtain the contact nodes between the rim and the tire mouth includes: intercepting the string group of the contact surface setting of the rim and the tire mouth in the text information in the inp input file, as well as all units of the contact surface between the rim and the tire mouth and the surfaces corresponding to each unit, and the node composition corresponding to the unit, and the two-dimensional coordinates of all nodes; searching for the node composition of the corresponding unit based on the unit number set in the string group, and the two-dimensional coordinates of the corresponding node; determining the contact nodes between the rim and the tire mouth based on the node composition and the surface number in the string group; sorting the contact nodes based on the Y-axis coordinate size in the two-dimensional coordinates of the corresponding node to obtain the contact nodes with order.

[0007] In a preferred embodiment of the present invention, the above-mentioned text information in the dat simulation result file is intercepted to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, including: based on a preset starting position and a preset ending position, the text information in the dat simulation result file is intercepted a preset number of times to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0008] In a preferred embodiment of the present invention, the above-mentioned data screening of the slip data to obtain the slip circumferential node position and slip data includes: determining the node number of each contact node in different sections; searching in the slip data based on the node number to obtain the circumferential slip data; screening the circumferential slip data based on a preset data type to obtain the slip circumferential node position and slip data.

[0009] In a preferred embodiment of the present invention, the above-mentioned analysis of the durability performance of the tire mouth based on the slip amount includes: obtaining a segmented broken line analysis graph based on the slip amount and the node sequence number; and analyzing the durability performance of the tire mouth based on the segmented broken line analysis graph.

[0010] In a second aspect, an embodiment of the present invention further provides an analysis device for the durability performance of a tire sub-mouth, comprising: a file generation module, used to establish a tire finite element model, and to generate an inp input file and a dat simulation result file by performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model; a first text interception module, used to perform text interception on the text information in the inp input file to obtain the contact node between the rim and the tire sub-mouth; a second text interception module, used to perform text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed; a data screening module, used to perform data screening based on the slip data to obtain the slip circumferential node position and slip data; a slip amount determination module, used to determine the slip amount generated by the contact node after the tire rolls one circle based on the slip data; and a durability performance analysis module, used to analyze the durability performance of the tire sub-mouth based on the slip amount.

[0011] In a third aspect, an embodiment of the present invention further provides an electronic device, including a processor and a memory, wherein the memory stores computer executable instructions that can be executed by the processor, and the processor executes the computer executable instructions to implement the tire endurance performance analysis method of the first aspect.

[0012] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium storing computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the tire endurance performance analysis method of the first aspect.

[0013] The embodiments of the present invention bring the following beneficial effects:

[0014] The embodiment of the present invention provides a tire end-end durability analysis method, device and electronic device, which establishes a tire finite element model, performs two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file, performs text interception on the text information in the inp input file to obtain the contact node between the rim and the tire end-end, performs text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed, then performs data screening on the slip data to obtain the slip circumferential node position and slip data, then determines the slip amount generated by the contact node when the tire rolls one circle based on the slip data, and finally analyzes the durability of the tire end-end based on the slip amount. In this method, it is not only convenient to display the data in segments, but also convenient to analyze the durability of the tire end-end.

[0015] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by implementing the above-mentioned technology of the present disclosure.

[0016] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A flowchart of a tire bead durability analysis method provided by an embodiment of the present invention;

[0019] Figure 2a A flow chart of another tire bead durability analysis method provided by an embodiment of the present invention;

[0020] Figure 2b A schematic diagram of a portion of text information in an inp input file provided by an embodiment of the present invention;

[0021] Figure 2c A schematic diagram of a portion of text information in a dat simulation result file provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a tire bead durability analysis device provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The contact surface between the tire bead and the rim is a part that is prone to fatigue damage. Bead debonding, wear, rubber aging and other phenomena often occur. These phenomena directly affect the durability of the tire and shorten the service life of the tire. Different bead designs have a certain impact on the fatigue durability of the bead. The existing finite element analysis software can calculate the contact pressure, shear force and cumulative slip between the contact pairs generated when the bead contacts the rim. With the help of friction work theory, the wear of the bead under assembly pressure can be evaluated. However, the slip amount finally output by the software during finite element calculation includes the slip amount during the inflation process and the loading process. It is not only inconvenient to display the data in segments, but also inconvenient to analyze the durability performance of the tire bead.

[0026] Based on this, an analysis method, device and electronic device for the durability performance of a tire mouth provided in an embodiment of the present invention can generate an inp input file and a dat simulation result file by establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model, performing text interception on the text information in the inp input file to obtain the contact node between the rim and the tire mouth, performing text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed, and then performing data screening on the slip data to obtain the slip circumferential node position and slip data, and then determining the slip amount generated by the contact node when the tire rolls one circle based on the slip data, and finally analyzing the durability performance of the tire mouth based on the slip amount. In this method, it is not only convenient to display the data in segments, but also convenient to analyze the durability performance of the tire mouth.

[0027] To facilitate understanding of this embodiment, a tire bead durability analysis method disclosed in an embodiment of the present invention is first introduced in detail.

[0028] Example 1

[0029] The embodiment of the present invention provides a method for analyzing the durability performance of a tire bead. Figure 1 The flowchart of a tire bead durability analysis method provided by an embodiment of the present invention. Figure 1 As shown, the tire bead durability analysis method may include the following steps:

[0030] Step S101, establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file.

[0031] Among them, the side of the tire mouth that contacts the rim can be named first, and then a two-dimensional inflation simulation can be performed to obtain a two-dimensional model. The two-dimensional model is then rotated circumferentially to obtain a three-dimensional model. The three-dimensional model is then subjected to a three-dimensional inflation loading analysis, and then the CDISP data of the contact surface between the rim and the tire mouth is added and output, thereby generating the corresponding inp input file and dat simulation result file.

[0032] Step S102, extracting the text information in the inp input file to obtain the contact node between the rim and the tire mouth.

[0033] The contact nodes between the wheel rim and the tire mouth are specifically sequential contact nodes.

[0034] Among them, the string group of the rim and tire mouth contact surface setting in the text information in the inp input file, all the units of the rim and tire mouth contact surface and the surfaces corresponding to each unit, the node composition corresponding to the unit, and the two-dimensional coordinates of all nodes can be intercepted, and then the contact nodes with sequence can be determined based on these data.

[0035] Step S103, extracting text information in the dat simulation result file to obtain the sliding data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0036] Among them, the text information of the specified section in the text information in the dat simulation result file can be intercepted a specified number of times to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0037] The designated section can be set by setting the start position and the end position of the interception, and the designated number of times is a preset number of times, for example, it can be 2 times.

[0038] Step S104, screening the slip data to obtain the slip circumferential node position and slip data.

[0039] Among them, the circumferential slip data can be searched in the slip data according to the node number of each contact node in different sections, and then the sliding circumferential node position and slip data can be obtained by screening in the circumferential slip data.

[0040] Step S105, determining the slip amount generated by the contact node when the tire rolls one circle based on the slip data.

[0041] Step S106: analyzing the durability performance of the tire mouth based on the slip amount.

[0042] Among them, a segmented broken line analysis diagram of the slip amount and the node number, that is, a segmented broken line analysis diagram of the circumferential slip amount and the node number can be made, and then the durability performance of the tire bead can be analyzed through the segmented broken line analysis diagram.

[0043] The node number is the node number of each contact node in different sections.

[0044] The tire end durability analysis method provided by the embodiment of the present invention can generate an inp input file and a dat simulation result file by establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model, performing text interception on the text information in the inp input file to obtain the contact node between the rim and the tire end, performing text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed, then performing data screening on the slip data to obtain the slip circumferential node position and slip data, then determining the slip amount generated by the contact node when the tire rolls one circle based on the slip data, and finally analyzing the durability of the tire end based on the slip amount. In this method, it is not only convenient to display the data in segments, but also convenient to analyze the durability of the tire end.

[0045] Example 2

[0046] The embodiment of the present invention also provides another method for analyzing the durability performance of a tire bead; this method is implemented on the basis of the method in the above embodiment.

[0047] Figure 2a A flowchart of another tire bead durability analysis method provided by an embodiment of the present invention, such as Figure 2a As shown, the tire bead durability analysis method may include the following steps:

[0048] Step S201, establish a tire finite element model, name the side of the tire mouth that contacts the rim, and perform a two-dimensional inflation simulation.

[0049] Among them, the side of the tire mouth that contacts the rim can be specifically named: RIMC1.

[0050] Step S202: The two-dimensional model is rotated circumferentially by N cross sections as a three-dimensional model to perform three-dimensional inflation loading analysis.

[0051] Step S203, after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, CDISP data of the contact surface between the rim and the tire mouth is added and output, and the corresponding inp input file and dat simulation result file are generated.

[0052] Specifically, the text information in the inp input file is intercepted to obtain the contact node between the rim and the tire mouth, which may include the following steps S204-S207:

[0053] Step S204, intercepting the string group of the rim and tire mouth contact interface setting in the text information in the inp input file, as well as all units of the rim and tire mouth contact interface and the surfaces corresponding to each unit, as well as the node composition corresponding to the unit, and the two-dimensional coordinates of all nodes.

[0054] For ease of understanding, Figure 2b A schematic diagram of a portion of text information in an inp input file provided by an embodiment of the present invention.

[0055] Among them, Figure 2b As shown, a pre-set program can be provided to read the text information in the inp input file, starting with "*SURFACE, TYPE=ELEMENT, NAME=RIMC1" and ending with "*", and the text information is intercepted to obtain the string group of the rim and tire mouth contact surface setting. Then, starting with "*ELSET, ELSET=unit set name" and ending with "*", the text information is intercepted to obtain all the units of the rim and tire mouth contact surface and the surfaces corresponding to each unit.

[0056] Among them, you can start with "*ELEMENT,TYPE=CGAX4H" and end with "*", intercept the text information to get all the elements and node structures, and then find the node structure of the corresponding element according to the element set name. Then start with "*NODE, NSET=NTIRE" and end with "*", intercept the text information to get the two-dimensional coordinates of all nodes.

[0057] Step S205 , searching for the node structure of the corresponding unit and the two-dimensional coordinates of the corresponding node based on the unit number set in the character string group.

[0058] Among them, the corresponding unit node structure can be obtained through the unit number set search, and then the two-dimensional coordinates of the corresponding node can be obtained according to the unit number set search.

[0059] Step S206: determining the contact node between the rim and the tire mouth based on the node structure and the surface number in the character string group.

[0060] Among them, the node structure can be queried through the surface number to obtain the contact node between the rim and the tire mouth.

[0061] Step S207 , sorting the contact nodes based on the Y-axis coordinate size of the corresponding node in the two-dimensional coordinates to obtain the contact nodes with order.

[0062] Specifically, the text information in the dat simulation result file is intercepted to obtain the sliding data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, which may include the following steps S208:

[0063] Step S208, based on the preset starting position and the preset ending position, the text information in the dat simulation result file is intercepted a preset number of times to obtain the sliding data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0064] For ease of understanding, Figure 2c A schematic diagram of a portion of text information in a dat simulation result file provided in an embodiment of the present invention.

[0065] Among them, Figure 2c As shown, a preset program can be provided to read the text information in the dat simulation result file, starting with "CONTACT OUTPUT FOR SLAVE SURFACE RIMC1 AND MASTER SURFACE RIGIDRIM" and ending with "MAXIMUM". Repeating the preset number of operations can obtain the sliding data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0066] Specifically, the preset number of times may be 2 times.

[0067] Specifically, the sliding data is screened to obtain the sliding circumferential node position and the slip data, which may include the following steps S209 to S211:

[0068] Step S209, determining the node number of each contact node in different cross sections.

[0069] Among them, it can be = +j*OFFSET_NUMBER (i-th node, j-th section) gets the node number of each node in different sections.

[0070] Step S210: Search the slip data based on the node number to obtain circumferential slip data.

[0071] Among them, the sliding data of the contact nodes after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are searched according to the node number to obtain the circumferential sliding data of each node.

[0072] Step S211, filtering the circumferential slip data based on a preset data type to obtain the slip circumferential node position and slip data.

[0073] Among them, Figure 2cIn the FOOT-NODE column, the data of SL are retained to obtain the sliding circumferential node position and slip data.

[0074] Specifically, analyzing the durability performance of the tire mouth based on the slip amount may include the following steps S215-S216:

[0075] Step S215, obtaining a segmented broken line analysis diagram based on the slip amount and the node sequence number.

[0076] Step S216, analyzing the durability performance of the tire mouth based on the segmented broken line analysis graph.

[0077] Furthermore, the tire material structure or the geometry of the slip zone can be modified to reduce the amplitude of the wear site and thus improve the tire endurance performance.

[0078] The embodiment of the present invention provides a method for analyzing the durability performance of the tire bead. In this method, the durability performance of the tire bead can be analyzed by a segmented line analysis chart, so as to clearly display the tire wear conditions of different schemes, which not only facilitates the segmented display of data, but also facilitates the analysis of the durability performance of the tire bead.

[0079] Example 3

[0080] Corresponding to the above method embodiment, the embodiment of the present invention provides a tire bead durability performance analysis device, Figure 3 A schematic diagram of a tire bead durability analysis device provided by an embodiment of the present invention, as shown in FIG. Figure 3 As shown, the tire endurance performance analysis device may include:

[0081] The file generation module 301 is used to establish a tire finite element model, and to perform two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file.

[0082] The first text interception module 302 is used to intercept the text information in the inp input file to obtain the contact node between the rim and the tire mouth.

[0083] The second text interception module 303 is used to intercept the text information in the dat simulation result file to obtain the sliding data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0084] The data screening module 304 is used to screen the data based on the slip data to obtain the slip circumferential node position and slip data.

[0085] The slippage determination module 305 is used to determine the slippage generated by the contact node during one rolling of the tire based on the slip data.

[0086] The durability performance analysis module 306 is used to analyze the durability performance of the tire mouth based on the slip amount. The tire mouth durability performance analysis device provided in the embodiment of the present invention can generate an inp input file and a dat simulation result file by establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model, performing text interception on the text information in the inp input file to obtain the contact node between the rim and the tire mouth, performing text interception on the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and three-dimensional inflation loading analysis are completed, and then performing data screening on the slip data to obtain the slip circumferential node position and slip data, and then determining the slip amount generated by the contact node when the tire rolls one circle based on the slip data, and finally analyzing the durability performance of the tire mouth based on the slip amount. In this way, it is not only convenient to display the data in segments, but also convenient to analyze the durability performance of the tire mouth.

[0087] In some embodiments, the file generation module is also used to name the side of the tire mouth that contacts the rim, and perform a two-dimensional inflation simulation; use the two-dimensional model to rotate N sections circumferentially as a three-dimensional model to perform a three-dimensional inflation loading analysis; after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, add the CDISP data of the contact surface between the rim and the tire mouth to generate the corresponding inp input file and dat simulation result file.

[0088] In some embodiments, the first text interception module is also used to intercept the string group of the rim and tire mouth contact surface setting in the text information in the inp input file, as well as all units of the rim and tire mouth contact surface and the surfaces corresponding to each unit, as well as the node composition corresponding to the unit, and the two-dimensional coordinates of all nodes; based on the unit number set in the string group, search for the node composition of the corresponding unit and the two-dimensional coordinates of the corresponding node; determine the contact node between the rim and the tire mouth based on the node composition and the surface number in the string group; sort the contact nodes based on the Y-axis coordinate size in the two-dimensional coordinates of the corresponding node to obtain ordered contact nodes.

[0089] In some embodiments, the second text capture module is also used to perform a preset number of text captures on the text information in the dat simulation result file based on a preset starting position and a preset ending position to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

[0090] In some embodiments, the data screening module is also used to determine the node number of each contact node in different sections; search the slip data based on the node number to obtain circumferential slip data; and screen the circumferential slip data based on a preset data type to obtain the slip circumferential node position and slip data.

[0091] In some embodiments, the durability performance analysis module is further used to obtain a segmented broken line analysis graph based on the slip amount and the node sequence number; and analyze the durability performance of the tire mouth based on the segmented broken line analysis graph.

[0092] The device provided in the embodiment of the present invention has the same implementation principle and technical effects as those of the aforementioned method embodiment. For the sake of brief description, for matters not mentioned in the device embodiment, reference may be made to the corresponding contents in the aforementioned method embodiment.

[0093] Example 4

[0094] The embodiment of the present invention also provides an electronic device for executing the above tire endurance performance analysis method; see Figure 4 A schematic diagram of the structure of an electronic device is shown, the electronic device includes a memory 400 and a processor 401, wherein the memory 400 is used to store one or more computer instructions, and the one or more computer instructions are executed by the processor 401 to implement the above-mentioned tire endurance performance analysis method.

[0095] Further, Figure 4 The electronic device shown further includes a bus 402 and a communication interface 403 , and the processor 401 , the communication interface 403 and the memory 400 are connected via the bus 402 .

[0096] The memory 400 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 403 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 402 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0097] The processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 401. The above processor 401 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor for execution, or a combination of hardware and software modules in the decoding processor for execution. The software module may be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 400, and the processor 401 reads the information in the memory 400 and completes the steps of the method of the above embodiment in combination with its hardware.

[0098] An embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the above-mentioned tire endurance performance analysis method. The specific implementation can be found in the method embodiment, which will not be repeated here.

[0099] The computer program product for the tire endurance performance analysis method provided in the embodiment of the present invention includes a computer-readable storage medium storing a non-volatile program code executable by a processor. The instructions included in the program code can be used to execute the method described in the previous method embodiment. The specific implementation can be found in the method embodiment and will not be repeated here.

[0100] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0101] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0102] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0103] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0104] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that can be executed by a processor. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., various media that can store program codes.

[0105] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for analyzing tire bead durability performance, characterized in that: The method comprises: Establishing a tire finite element model, and performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file; Performing text interception on the text information in the inp input file to obtain the contact node between the rim and the tire mouth; Extracting text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed; Screening the slip data to obtain the slip circumferential node position and slip data; Determine the slip amount generated by the contact node when the tire rolls one circle based on the slip data; Analyzing the durability of the tire mouth based on the slip amount; The step of screening the slip data to obtain the slip circumferential node position and slip data includes: Determine the node number of each of the contact nodes in different cross sections; Searching the slip data based on the node number to obtain circumferential slip data; Filtering the circumferential slip data based on a preset data type to obtain the slip circumferential node position and the slip data; The data type is a row with a target identifier in a preset column in the dat simulation result file.

2. The method according to claim 1, characterized in that The two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model generate an inp input file and a dat simulation result file, including: The side of the tire mouth that contacts the rim is named, and a two-dimensional inflation simulation is performed; The 2D model is rotated circumferentially with N sections as a 3D model for 3D inflation loading analysis; After the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, the CDISP data of the contact surface between the rim and the tire mouth are added and output to generate the corresponding inp input file and the dat simulation result file.

3. The method according to claim 1, characterized in that: The text information in the inp input file is intercepted to obtain the contact node between the rim and the tire mouth, including: Intercept the string group of the contact surface between the rim and the tire in the text information in the inp input file, as well as all the units of the contact surface between the rim and the tire and the faces corresponding to each unit, as well as the node structure corresponding to the unit, and the two-dimensional coordinates of all the nodes; Searching for the node composition of the corresponding unit and the two-dimensional coordinates of the corresponding node based on the unit number set in the string group; Determine a contact node between the wheel rim and the tire mouth based on the node structure and the surface number in the string group; The contact nodes are sorted based on the Y-axis coordinate size of the two-dimensional coordinates of the corresponding nodes to obtain the contact nodes with order.

4. The method according to claim 1, characterized in that The text information in the dat simulation result file is intercepted to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed, including: The text information in the dat simulation result file is intercepted a preset number of times based on a preset starting position and a preset ending position to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed.

5. The method according to claim 1, characterized in that The analyzing the durability performance of the tire mouth based on the slip amount includes: Obtaining a segmented broken line analysis diagram based on the slip amount and the node sequence number; The durability performance of the tire mouth is analyzed based on the segmented broken line analysis graph.

6. A tire bead durability analysis device, characterized in that: A method for analyzing tire bead durability performance according to any one of claims 1 to 5, the device comprising: A file generation module, used for establishing a tire finite element model, performing two-dimensional inflation simulation and three-dimensional inflation loading analysis based on the tire finite element model to generate an inp input file and a dat simulation result file; A first text interception module is used to intercept the text information in the inp input file to obtain the contact node between the rim and the tire mouth; A second text interception module is used to intercept the text information in the dat simulation result file to obtain the slip data of the contact node after the two-dimensional inflation simulation and the three-dimensional inflation loading analysis are completed; A data screening module, used for performing data screening based on the slip data to obtain slip circumferential node positions and slip data; A slippage determination module, configured to determine the slippage generated by the contact node when the tire rolls one circle based on the slip data; A durability performance analysis module is used to analyze the durability performance of the tire mouth based on the slip amount.

7. An electronic device, characterized in that: The invention comprises a processor and a memory, wherein the memory stores computer executable instructions that can be executed by the processor, and the processor executes the computer executable instructions to implement the tire endurance performance analysis method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the tire endurance performance analysis method according to any one of claims 1 to 5.

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