| Influence of Airbag Cord Parameters on Static Characteristics of Free Diaphragm Air Spring |
| Received:December 14, 2021 Revised:December 14, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.06.0459 |
| Key Words: free diaphragm air spring；static performance；cord parameter；airbag；single factor test；orthogonal test |
| Author Name | Affiliation | E-mail | | LIU Jiajian* | Qingdao Borui Zhiyuan Anti-vibration Technology Co.，Ltd | ljjla@126.com | | LIU Zhiguo | Qingdao Borui Zhiyuan Anti-vibration Technology Co.，Ltd | | | CAO Jiangyong | Qingdao Borui Zhiyuan Anti-vibration Technology Co.，Ltd | | | LAI Qingcun | Qingdao Borui Zhiyuan Anti-vibration Technology Co.，Ltd | |
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| Abstract: |
| A single factor test was used to study the influence of the airbag cord materials，cord angles and cord expansion ratios on the static performance（horizontal static stiffness，vertical static stiffness and load internal pressure） of the free diaphragm air spring，and then the orthogonal test method was used to analyze the influence degree of these three factors on the static performance of the air spring.The results showed that the airbag cord material，cord angle and cord expansion ratio had different influence degrees on the static performance of the air spring.Among them，the cord material had the greatest influence on the load internal pressure of the air spring，the cord angle had the greatest influence on the vertical static stiffness，and the cord expansion ratio had the greatest influence on the horizontal static stiffness. |
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