|
| Storage Life Evaluation of an O-rubber Sealing Ring for Missile Based on Performance Degradation Data |
| Received:October 24, 2015 Revised:April 15, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2016.02.022 |
| KeyWord:degradation of performance parameters storage life assessment (sla) accelerated degradation test Arrhenius equation |
| Author | Institution |
| YE Peng-feng |
Mechanic Engineering School， Nanjing University of Science and Technology， Nanjing ， China |
| GU Xiao-hui |
Mechanic Engineering School， Nanjing University of Science and Technology， Nanjing ， China |
| DI Yi |
Mechanic Engineering School， Nanjing University of Science and Technology， Nanjing ， China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To study the degradation law of performance parameters of an O-rubber sealing ring for missle and accurately predict its storage life. Methods This paper designed constant stress accelerated degradation tests at four different temperatures, recorded the performance degradation data at different time points at each temperature, and established the aging dynamics equation for the compression permanent deformation rate and storage time of O-rubber sealing ring based on degradation parameters and using the relationship between performance change of polymer materials and performance degradation time and Arrhenius equation. Results Using the local average temperature of each season as control, life assessment model was established, and it was predicted that the failure life of this type of sealing ring in the natural storage environment was about 8 years. Conclusion The life evaluation value was close to the actual measured value, with good precision, and can provide valuable reference for life assessment of the O-rubber sealing ring under the condition of natural storage. |
| Close |