同济大学学报（自然科学版）2024，Vol.52Issue(7)：1032-1039,8.DOI:10.11908/j.issn.0253-374x.23421
基于曲面力学超材料的吸能减振设计
Energy-Absorption and Vibration-Attenuation Design Using Shell-Based Mechanical Metamaterials
摘要
Abstract
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.关键词
吸能/减振/多孔材料/曲面力学超材料Key words
energy absorption/vibration attenuation/porous materials/shell-based mechanical metamaterials分类
数理科学引用本文复制引用
刘佳佳,张军舰,龚林辉,高利军,廖国良,王永桢,曾庆磊..基于曲面力学超材料的吸能减振设计[J].同济大学学报（自然科学版）,2024,52(7):1032-1039,8.基金项目
国家自然科学基金(12002050,12372347) （12002050,12372347）
