Influence of Cord Parameters on the Load Characteristics of Airbags
To accurately characterize the large deformation and nonlinear characteristics of airbags, the influence of cord parameters on vertical force characteristics was studied, and a finite-element simulation model of airbags based on gas-solid coupling was established. First, uniaxial tension and compres...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/8670882 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561549674283008 |
|---|---|
| author | Yu-Ru Li Shou-Ne Xiao Jun-Ke Xie Tao Zhu Bing Yang Guang-Wu Yang Shi-De Xiao |
| author_facet | Yu-Ru Li Shou-Ne Xiao Jun-Ke Xie Tao Zhu Bing Yang Guang-Wu Yang Shi-De Xiao |
| author_sort | Yu-Ru Li |
| collection | DOAJ |
| description | To accurately characterize the large deformation and nonlinear characteristics of airbags, the influence of cord parameters on vertical force characteristics was studied, and a finite-element simulation model of airbags based on gas-solid coupling was established. First, uniaxial tension and compression experiments with airbag under different initial pressures were carried out to analyse the effects of the initial pressure and working height on the mechanical properties of the airbag. Second, the validity of the model was verified by the test data of the vertical force and cavity pressure of the airbag. Finally, based on the gas-solid coupling model proposed, the influence of the cord parameters on the vertical force characteristics was studied. The results show that the vertical force characteristics of an airbag are different between compression and tension and the nonlinear characteristic of the airbag becomes more obvious with the increase in the displacement in compression. After comparing the effects of cord parameters on the vertical force of the airbag, we can conclude that the number of cord layers has the most significant effect on the vertical force, followed by the cord diameter, while other cord parameters have a general effect. Under the same compression and tension displacements (d = ±80 mm), the effective area of 1 cord layer is 2.56 times as much as the effective area of 6 cord layers and the vertical force of the airbag with a cord diameter of 0.25 mm is 7.28 times greater than that of the corresponding vertical force with a cord diameter of 1.0 mm. The airbag with different cord angles shows differences in the working state of compression and tension, especially in compression. The force of the airbag at 90° cord angle gradually exceeds the force at other angles with an increase in displacement. The difference in the load at different working states of compression and tension is useful. |
| format | Article |
| id | doaj-art-1e4a0c7888a44b0f9e74f04b04f6bb2e |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-1e4a0c7888a44b0f9e74f04b04f6bb2e2025-02-03T01:24:44ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/86708828670882Influence of Cord Parameters on the Load Characteristics of AirbagsYu-Ru Li0Shou-Ne Xiao1Jun-Ke Xie2Tao Zhu3Bing Yang4Guang-Wu Yang5Shi-De Xiao6School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Mechanical Engineering, Sichuan University of Science and Engineering, Zigong 643000, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaTo accurately characterize the large deformation and nonlinear characteristics of airbags, the influence of cord parameters on vertical force characteristics was studied, and a finite-element simulation model of airbags based on gas-solid coupling was established. First, uniaxial tension and compression experiments with airbag under different initial pressures were carried out to analyse the effects of the initial pressure and working height on the mechanical properties of the airbag. Second, the validity of the model was verified by the test data of the vertical force and cavity pressure of the airbag. Finally, based on the gas-solid coupling model proposed, the influence of the cord parameters on the vertical force characteristics was studied. The results show that the vertical force characteristics of an airbag are different between compression and tension and the nonlinear characteristic of the airbag becomes more obvious with the increase in the displacement in compression. After comparing the effects of cord parameters on the vertical force of the airbag, we can conclude that the number of cord layers has the most significant effect on the vertical force, followed by the cord diameter, while other cord parameters have a general effect. Under the same compression and tension displacements (d = ±80 mm), the effective area of 1 cord layer is 2.56 times as much as the effective area of 6 cord layers and the vertical force of the airbag with a cord diameter of 0.25 mm is 7.28 times greater than that of the corresponding vertical force with a cord diameter of 1.0 mm. The airbag with different cord angles shows differences in the working state of compression and tension, especially in compression. The force of the airbag at 90° cord angle gradually exceeds the force at other angles with an increase in displacement. The difference in the load at different working states of compression and tension is useful.http://dx.doi.org/10.1155/2021/8670882 |
| spellingShingle | Yu-Ru Li Shou-Ne Xiao Jun-Ke Xie Tao Zhu Bing Yang Guang-Wu Yang Shi-De Xiao Influence of Cord Parameters on the Load Characteristics of Airbags Shock and Vibration |
| title | Influence of Cord Parameters on the Load Characteristics of Airbags |
| title_full | Influence of Cord Parameters on the Load Characteristics of Airbags |
| title_fullStr | Influence of Cord Parameters on the Load Characteristics of Airbags |
| title_full_unstemmed | Influence of Cord Parameters on the Load Characteristics of Airbags |
| title_short | Influence of Cord Parameters on the Load Characteristics of Airbags |
| title_sort | influence of cord parameters on the load characteristics of airbags |
| url | http://dx.doi.org/10.1155/2021/8670882 |
| work_keys_str_mv | AT yuruli influenceofcordparametersontheloadcharacteristicsofairbags AT shounexiao influenceofcordparametersontheloadcharacteristicsofairbags AT junkexie influenceofcordparametersontheloadcharacteristicsofairbags AT taozhu influenceofcordparametersontheloadcharacteristicsofairbags AT bingyang influenceofcordparametersontheloadcharacteristicsofairbags AT guangwuyang influenceofcordparametersontheloadcharacteristicsofairbags AT shidexiao influenceofcordparametersontheloadcharacteristicsofairbags |