| 娄文忠,李昕哲,冯恒振,何博,苏文亭,吕斯宁,李志鹏.引信在长期贮存下老化行为的仿真模拟与分析[J].装备环境工程,2023,20(10):56-63. LOU Wen-zhong,LI Xin-zhe,FENG Heng-zhen,HE Bo,SU Wen-ting,LYU Si-ning,LI Zhi-peng.Simulation and Analysis of Aging Behavior of Fuzes under Long-term Storage[J].Equipment Environmental Engineering,2023,20(10):56-63. |
| 引信在长期贮存下老化行为的仿真模拟与分析 |
| Simulation and Analysis of Aging Behavior of Fuzes under Long-term Storage |
| 投稿时间：2023-06-27 修订日期：2023-08-09 |
| DOI：10.7643/issn.1672-9242.2023.10.007 |
| 中文关键词: 引信 长期贮存 蠕变仿真 老化行为 薄弱零件 温度交变中图分类号:TJ430.89 文献标识码:A 文章编号:1672-9242(2023)10-0056-08 |
| 英文关键词:fuze long-term storage creep simulation aging behavior weak parts temperature alternation |
| 基金项目:国家自然科学基金青年基金(62304022 )； 2022-2024年度中国科协创新融合学会联合体青年人才托举工程(2022QNRC001) |
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| Author | Institution |
| LOU Wen-zhong | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China |
| LI Xin-zhe | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China;Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| FENG Heng-zhen | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China |
| HE Bo | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China |
| SU Wen-ting | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China |
| LYU Si-ning | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China |
| LI Zhi-peng | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| 中文摘要: |
| 目的 厘清某型引信在贮存14 a后的失效模式，研究温度周期性交变对引信及其薄弱零件的影响。方法 利用ANSYS workbench软件，建立基于时间硬化的蠕变仿真方法。以某型引信为研究对象，开展周期性温度交变的蠕变仿真，根据仿真计算结果和实物的对比分析，找出薄弱零件，分析其老化失效模式。结果 在每个周期内环境温度循环条件下，仿真时长设定为14 a，结果显示，引信整体蠕变应变率超过1%，平均压紧应力下降21%，松弛稳定性变弱，密封性在一定程度上变差。其中，引信电机外壳、电机扇叶、底部线路对接板为薄弱零件，容易发生失效行为。结论 引信贮存在典型西南湿热环境14 a后，周期性温度交变应力将导致引信出现缺陷，缺陷集中在电机外壳、电机扇叶、底部线路对接板处，应重点对这些部位进行防护。 |
| 英文摘要: |
| The work aims to clarify the failure mode of a certain type of fuze after 14 years of storage, and to study the effect of periodic temperature alternation on the fuze and its weak parts. A creep simulation method based on time hardening was established with ANSYS workbench. With a certain type of fuze as the research object, the creep simulation of periodic temperature alternation was carried out. According to the simulation calculation results, the weak parts were found and the aging failure mode was analyzed. Under the cyclic condition of ambient temperature in each cycle, the simulation time was set to 14 year. The results showed that the overall creep strain rate of the fuze exceeded 1%, the average compressive stress decreased by 21%, the relaxation stability became weaker, and the sealing became poor, among which the fuze motor housing, motor fan blade and bottom line docking plate were weak parts and were prone to failure behavior. After the fuze is stored in a southwestern hygrothermal environment for 14 years, the periodic temperature alternating stress will lead to defects in the fuze, and the defects are concentrated in the motor shell, motor fan blade and bottom line docking plate. Therefore, these parts should be protected. |
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