Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires
Self-supporting run-flat tires (SSRFTs) achieve good zero-pressure driving ability by reinforcing the sidewalls, and the structural shape of sidewall insert rubber (SIR) is critical in influencing the mechanical characteristics of SSRFTs. In this paper, an SSRFT contour model is established by combi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/11/11/458 |
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| author | Tian Lv Liguo Zang Cheng Xue Yaowei Li Yulin Mao Xingyu Wang |
| author_facet | Tian Lv Liguo Zang Cheng Xue Yaowei Li Yulin Mao Xingyu Wang |
| author_sort | Tian Lv |
| collection | DOAJ |
| description | Self-supporting run-flat tires (SSRFTs) achieve good zero-pressure driving ability by reinforcing the sidewalls, and the structural shape of sidewall insert rubber (SIR) is critical in influencing the mechanical characteristics of SSRFTs. In this paper, an SSRFT contour model is established by combining the radial tire contour theory and the design elements of SIR. The influence of two design parameters (maximum width <i>L</i> and maximum thickness <i>H</i>) of SIR on the tire stiffness characteristics and the contact characteristics is analyzed in depth, and the accuracy of the model is verified by the tire mechanics bench test. The results show that the radial stiffness of SSRFTs is positively correlated with two design parameters; an increase in <i>L</i> affects the stress concentration at the end of SIR, while a change in <i>H</i> has a more drastic effect on the stress distribution of SIR, leading to a large change in both the location of the deformation of SIR and the maximum equivalent stress; under rated pressure conditions, when <i>L</i> is less than 100 mm, the overlap between SIR and the tread decreases, which in turn makes the contact characteristics of SSRFTs closer to that of a normal tire, and obtains better comfort and abrasion resistance; under zero-pressure conditions, the maximum contact stress of the tread is the smallest when the <i>H</i> is 8 mm, but when <i>H</i> is less than 6 mm, the contact characteristics appear to deteriorate uniformly, and the maximum contact stress continues to rise. The results of the research provide a reference value for the selection of the design parameters for SIR and the optimization of the dynamic performance of SSRFTs. |
| first_indexed | 2024-03-09T16:40:28Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-09T16:40:28Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-c5b7fd90871147b1a7a2e9fd47d6c5cc2023-11-24T14:52:43ZengMDPI AGLubricants2075-44422023-10-01111145810.3390/lubricants11110458Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat TiresTian Lv0Liguo Zang1Cheng Xue2Yaowei Li3Yulin Mao4Xingyu Wang5School of Automotive and Rail Transit, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Automotive and Rail Transit, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Automotive and Rail Transit, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Automotive and Rail Transit, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Automotive and Rail Transit, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Automotive Studies, Tongji University, Shanghai 200092, ChinaSelf-supporting run-flat tires (SSRFTs) achieve good zero-pressure driving ability by reinforcing the sidewalls, and the structural shape of sidewall insert rubber (SIR) is critical in influencing the mechanical characteristics of SSRFTs. In this paper, an SSRFT contour model is established by combining the radial tire contour theory and the design elements of SIR. The influence of two design parameters (maximum width <i>L</i> and maximum thickness <i>H</i>) of SIR on the tire stiffness characteristics and the contact characteristics is analyzed in depth, and the accuracy of the model is verified by the tire mechanics bench test. The results show that the radial stiffness of SSRFTs is positively correlated with two design parameters; an increase in <i>L</i> affects the stress concentration at the end of SIR, while a change in <i>H</i> has a more drastic effect on the stress distribution of SIR, leading to a large change in both the location of the deformation of SIR and the maximum equivalent stress; under rated pressure conditions, when <i>L</i> is less than 100 mm, the overlap between SIR and the tread decreases, which in turn makes the contact characteristics of SSRFTs closer to that of a normal tire, and obtains better comfort and abrasion resistance; under zero-pressure conditions, the maximum contact stress of the tread is the smallest when the <i>H</i> is 8 mm, but when <i>H</i> is less than 6 mm, the contact characteristics appear to deteriorate uniformly, and the maximum contact stress continues to rise. The results of the research provide a reference value for the selection of the design parameters for SIR and the optimization of the dynamic performance of SSRFTs.https://www.mdpi.com/2075-4442/11/11/458run-flat tiremechanical characteristicszero-pressure driving abilityfinite element analysisYeoh constitutive modeltire mechanical characteristics test bench |
| spellingShingle | Tian Lv Liguo Zang Cheng Xue Yaowei Li Yulin Mao Xingyu Wang Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires Lubricants run-flat tire mechanical characteristics zero-pressure driving ability finite element analysis Yeoh constitutive model tire mechanical characteristics test bench |
| title | Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires |
| title_full | Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires |
| title_fullStr | Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires |
| title_full_unstemmed | Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires |
| title_short | Study on the Effect of Different Design Parameters of Sidewall Insert Rubber on the Mechanical Characteristics of Self-Supporting Run-Flat Tires |
| title_sort | study on the effect of different design parameters of sidewall insert rubber on the mechanical characteristics of self supporting run flat tires |
| topic | run-flat tire mechanical characteristics zero-pressure driving ability finite element analysis Yeoh constitutive model tire mechanical characteristics test bench |
| url | https://www.mdpi.com/2075-4442/11/11/458 |
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