Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling
In order to accurately evaluate the structural integrity level of the solid rocket ramjet nozzleless booster propellant grain during curing and cooling, the structural integrity of the nozzleless booster propellant grain of a solid rocket ramjet engine under uniform temperature field with linear tem...
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Editorial Office of Aero Weaponry
2025-04-01
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| Series: | Hangkong bingqi |
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| Online Access: | https://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/2024-0132.pdf |
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| author | Kui Bin, Liu Qiang, Na Xudong, Liu Jue |
| author_facet | Kui Bin, Liu Qiang, Na Xudong, Liu Jue |
| author_sort | Kui Bin, Liu Qiang, Na Xudong, Liu Jue |
| collection | DOAJ |
| description | In order to accurately evaluate the structural integrity level of the solid rocket ramjet nozzleless booster propellant grain during curing and cooling, the structural integrity of the nozzleless booster propellant grain of a solid rocket ramjet engine under uniform temperature field with linear temperature reduction and non-uniform temperature field considering convective heat transfer between nozzleless booster and environment is calculated by using finite element software, and the results of finite element calculation are compared with the measured results of CT. The results show that the safety coefficient of the grain is 2.88 under uniform temperature field and 2.53 under non-uniform temperature field, and the most dangerous positions are located on the low burning rate grain. The simulation results in non-uniform temperature field are closer to the experiment results. It is necessary to consider the non-uniform temperature field in the integrity analysis of nozzleless booster grain. |
| format | Article |
| id | doaj-art-284ff08c037b4cff8118a3fbd4cd8a4a |
| institution | Kabale University |
| issn | 1673-5048 |
| language | zho |
| publishDate | 2025-04-01 |
| publisher | Editorial Office of Aero Weaponry |
| record_format | Article |
| series | Hangkong bingqi |
| spelling | doaj-art-284ff08c037b4cff8118a3fbd4cd8a4a2025-08-20T03:52:39ZzhoEditorial Office of Aero WeaponryHangkong bingqi1673-50482025-04-0132212112710.12132/ISSN.1673-5048.2024.0132Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and CoolingKui Bin, Liu Qiang, Na Xudong, Liu Jue01. Hunan Hongda Risheng Aerospace Power Technology Co., Ltd, Changsha 410005, China;2. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaIn order to accurately evaluate the structural integrity level of the solid rocket ramjet nozzleless booster propellant grain during curing and cooling, the structural integrity of the nozzleless booster propellant grain of a solid rocket ramjet engine under uniform temperature field with linear temperature reduction and non-uniform temperature field considering convective heat transfer between nozzleless booster and environment is calculated by using finite element software, and the results of finite element calculation are compared with the measured results of CT. The results show that the safety coefficient of the grain is 2.88 under uniform temperature field and 2.53 under non-uniform temperature field, and the most dangerous positions are located on the low burning rate grain. The simulation results in non-uniform temperature field are closer to the experiment results. It is necessary to consider the non-uniform temperature field in the integrity analysis of nozzleless booster grain.https://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/2024-0132.pdf|nozzleless booster|grain|structural integrity|uniform temperature field |
| spellingShingle | Kui Bin, Liu Qiang, Na Xudong, Liu Jue Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling Hangkong bingqi |nozzleless booster|grain|structural integrity|uniform temperature field |
| title | Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling |
| title_full | Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling |
| title_fullStr | Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling |
| title_full_unstemmed | Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling |
| title_short | Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling |
| title_sort | structural integrity analysis of nozzleless booster propellant grain in the process of curing and cooling |
| topic | |nozzleless booster|grain|structural integrity|uniform temperature field |
| url | https://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/2024-0132.pdf |
| work_keys_str_mv | AT kuibinliuqiangnaxudongliujue structuralintegrityanalysisofnozzlelessboosterpropellantgrainintheprocessofcuringandcooling |