基于曲面力学超材料的吸能减振设计

Jiajia Liu, Junjian Zhang, Linhui Gong, Lijun Gao, Guoliang Liao, Yongzhen Wang, Qinglei Zeng*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Explosion and impact loadings pose a serious threat to the service safety of defense and industrial equipment. Energy-absorbing materials can effectively reduce structural vibration and the damage caused by impact. Traditional energy-absorbing materials,such as aluminum foam,have a relatively limited design space. Therefore,it is urgent to develop new energy-absorbing materials. In this paper,the energy-absorbing mechanism of porous materials was systematically investigated based on numerical modelling of the impact process. The simulation results indicate that energy-absorbing materials can have a good shock absorption performance only when the strength is appropriate. In order to realize customized design of energy-absorbing materials,shell-based mechanical metamaterials with different energy-absorbing characteristics were designed based on the machine learning and genetic algorithm. The effectiveness of the newly designed metamaterials in energy-absorption and vibration-attenuation was verified through simulation results. This study can provide important technical guidelines for the design and optimization of new energy-absorbing materials.

投稿的翻译标题Energy-Absorption and VibrationAttenuation Design Using Shell-Based Mechanical Metamaterials
源语言繁体中文
页(从-至)1032-1039
页数8
期刊Tongji Daxue Xuebao/Journal of Tongji University
52
7
DOI
出版状态已出版 - 7月 2024

关键词

  • energy absorption
  • porous materials
  • shell-based mechanical metamaterials
  • vibration attenuation

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引用此

Liu, J., Zhang, J., Gong, L., Gao, L., Liao, G., Wang, Y., & Zeng, Q. (2024). 基于曲面力学超材料的吸能减振设计. Tongji Daxue Xuebao/Journal of Tongji University, 52(7), 1032-1039. https://doi.org/10.11908/j.issn.0253-374x.23421