| 摘要: |
| 火工装置作动时会产生量级大、频率高的冲击环境，对运载火箭、上面级、航天器上的精密电子产品、光学设备等产生重要影响。火工冲击环境因具有频率范围大、瞬态特性强、离散性大等特点而使准确预示极具挑战性。当前，航天产品的发展对火工冲击环境预示能力提出了更高的要求。从火工装置仿真与近场环境预示方法、载荷表征与建模方法、中远场火工冲击环境预示方法３个方面总结了国内外航天火工冲击环境预示技术的研究现状。在此基础上，结合领域发展趋势与工程实际需求，对今后航天火工冲击环境预示技术研究给出参考建议。 |
| 关键词: 火工冲击 力学环境 响应预示 |
| DOI： |
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| 基金项目:国家部委慧眼行动项目（9350DC58）；基础加强重点计划(2022-JCJQ-ZD) |
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| Research Status and Prospects on Aerospace Pyroshock Environment Prediction Techniques |
| PAN Zhongwen,TAN Zuwei,ZHANG Xinyu,PENG Huilian,HU Zhenxing |
| (Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China) |
| Abstract: |
| The activation of pyrotechnic devices generates a high-magnitude, high-frequency shock environment, significantly affecting precision electronic products, optical equipment, and other devices found in launch vehicles, upper stages, and spacecraft. Pyroshock environments present considerable challenges for accurate prediction due to their broad frequency range, strong transient nature, and high variability. As aerospace products evolve, there is an increasing demand for improved capabilities to predict pyroshock environments. This paper reviews the current research on aerospace pyroshock environment prediction technology, focusing on three key areas: simulation and near-field environment prediction methods for pyrotechnic devices, load characterization and modeling methods, and prediction methods for mid-field and far-field environments. Additionally, the paper provides recommendations for future research in aerospace pyrotechnic shock environment prediction technology, considering developments in the field and practical engineering requirements. |
| Key words: Pyroshock Dynamic environment Response prediction |