FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE
Automobile rear axle is the core load-bearing part of automobile chassis,its main damage form is fatigue failure under alternating load. It is of great significance to quantitatively evaluate the fatigue sensitivity of rear axle to realize the lightweight design of automobile and to improve the effe...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2021-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.04.024 |
| _version_ | 1797767585036500992 |
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| author | ZHANG Yu LI Chang HAN Xing GAO HeXin GAO Xing |
| author_facet | ZHANG Yu LI Chang HAN Xing GAO HeXin GAO Xing |
| author_sort | ZHANG Yu |
| collection | DOAJ |
| description | Automobile rear axle is the core load-bearing part of automobile chassis,its main damage form is fatigue failure under alternating load. It is of great significance to quantitatively evaluate the fatigue sensitivity of rear axle to realize the lightweight design of automobile and to improve the effective service life and safety of automobile. Firstly,the three-dimensional finite element model of automobile rear axle was established, and the maximum vertical force was selected for strength calculation,and the stress and strain state of automobile rear axle was obtained. On this basis,the fatigue life and damage distribution of the rear bridge are calculated based on n Code Design-Life,and the sensitivity of various parameters to the fatigue life is analyzed by response surface method. The results show that the fatigue failure of the rear axle first appears at the half axle sleeve pipe,elastic modulus has the most obvious effect on fatigue,the thickness of leaf spring seat is next,and the influence of bridge shell thickness,poisson’s ratio and bridge envelope thickness decreased successively. |
| first_indexed | 2024-03-12T20:41:55Z |
| format | Article |
| id | doaj.art-34c8472ca79941aca8daa71c5e2c2458 |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:41:55Z |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-34c8472ca79941aca8daa71c5e2c24582023-08-01T07:53:48ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-014393694430611634FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODEZHANG YuLI ChangHAN XingGAO HeXinGAO XingAutomobile rear axle is the core load-bearing part of automobile chassis,its main damage form is fatigue failure under alternating load. It is of great significance to quantitatively evaluate the fatigue sensitivity of rear axle to realize the lightweight design of automobile and to improve the effective service life and safety of automobile. Firstly,the three-dimensional finite element model of automobile rear axle was established, and the maximum vertical force was selected for strength calculation,and the stress and strain state of automobile rear axle was obtained. On this basis,the fatigue life and damage distribution of the rear bridge are calculated based on n Code Design-Life,and the sensitivity of various parameters to the fatigue life is analyzed by response surface method. The results show that the fatigue failure of the rear axle first appears at the half axle sleeve pipe,elastic modulus has the most obvious effect on fatigue,the thickness of leaf spring seat is next,and the influence of bridge shell thickness,poisson’s ratio and bridge envelope thickness decreased successively.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.04.024Automobile rear axle;nCode design-life;Fatigue life;Response surface methodology;Sensitivity |
| spellingShingle | ZHANG Yu LI Chang HAN Xing GAO HeXin GAO Xing FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE Jixie qiangdu Automobile rear axle;nCode design-life;Fatigue life;Response surface methodology;Sensitivity |
| title | FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE |
| title_full | FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE |
| title_fullStr | FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE |
| title_full_unstemmed | FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE |
| title_short | FATIGUE FAILURE SENSITIVITY EVALUATION METHOD OF AUTOMOBILE REAR AXLE BASED ON NCODE |
| title_sort | fatigue failure sensitivity evaluation method of automobile rear axle based on ncode |
| topic | Automobile rear axle;nCode design-life;Fatigue life;Response surface methodology;Sensitivity |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.04.024 |
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