|
| Test Evaluation of Missile Propellant Charge's Storage Safety in Extended Service |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.02.002 |
| KeyWord:propellant charge long-term storage safety thermal stability comprehensive evaluation mechanical sensitivity |
| Author | Institution |
| MI Qiao-li |
Unit 91049, PLA, Shandong Qingdao , China |
| LU Ming-zhang |
Unit 91049, PLA, Shandong Qingdao , China |
| LI Yun-feng |
Unit 91049, PLA, Shandong Qingdao , China |
| WANG Jin-dong |
Unit 91049, PLA, Shandong Qingdao , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to test and evaluate the propellant charge’s storage safety in combination with performance tests to study whether the propellant charge of a certain type of missile in extended service can meet the safe storage and use requirements. The safety risks caused by the propellant charge’s performance aging and failure were analyzed, accordingly the evaluation parameter system of the propellant charge’s storage safety was built. On this basis, the storage safety tests of the propellant charges for 14 years and 5 years were implemented in terms of structural integrity, mechanical properties, thermal stability and vulnerability. By the comparative analysis of test results and data, the corresponding evaluation parameters were obtained. The performance changes of propellant charges stored for 14 years were compared with those stored for 5 years. It showed that the overall structural safety factor decreased from 3.85 to 2.86. At the same testing temperature, the maximum reduction of tensile strength, compressive strength and impact strength was 18.35%, 14.05% and 7.85% respectively. The stabilizer content decreased from 98% to 93%, and the friction sensitivity and impact sensitivity increased by 33.28% and 36.77%. Resultingly, the storage safety of the propellant charge was evaluated comprehensively. The comprehensive evaluation results suggest that the storage safety propellant charges in extended service still meet the requirements of technical standard. After long-term storage, the thermal stability and mechanical properties' changes of the propellant charges are minor, but the corresponding safety parameters' changes of the structural integrity and vulnerability are large. Those indicate that the propellant charges’ use safety decreases significantly. |
| Close |
|
|
|