辽宁石油化工大学学报2026，Vol.46Issue(1)：64-70,7.DOI:10.12422/j.issn.1672-6952.2026.01.008
新型四振子手性声子晶体的低频带隙研究
Study on the Low-Frequency Band Gap of Novel Four-Oscillator Chiral Phononic Crystals
摘要
Abstract
Aiming to achieve noise isolation and vibration damping in engineering applications with simple and aesthetic structures,this paper designs a novel four-oscillator chiral phononic crystal.By incorporating helical scatterer branches as oscillators,the design breaks the inherent symmetry of conventional phononic crystals.Finite element simulation is first used to analyze the bandgap of the unit cell,followed by validation of the infinite periodic bandgap range through finite periodic arrangement.Further investigation into the effects of scatterer material parameters and the number of oscillators on the bandgap characteristics was conducted through parametric analysis.The results indicate that the chiral phononic crystal structure exhibits a total band gap widths of up to 642.12 Hz below 1 000 Hz,demonstrating excellent performance in low frequency noise isolation.关键词
手性声子晶体/带隙范围/低频隔声/有限元仿真Key words
Chiral phononic crystal/Bandgap range/Low-frequency noise isolation/Finite element simulation分类
数理科学引用本文复制引用
任世强,玉姣..新型四振子手性声子晶体的低频带隙研究[J].辽宁石油化工大学学报,2026,46(1):64-70,7.基金项目
国家自然科学基金项目(12074160) （12074160）
辽宁省自然科学基金项目(2024-MS-181) （2024-MS-181）
辽宁省教育厅基本科研项目(LJ212410148042). （LJ212410148042）
