Mass inertia moment-based design of band gap characteristics in zigzag beam-supported stepped phononic crystals

被引：10

作者：

Guo, J. C. ^{[1
]}

Zhang, Z. ^{[1
]}

机构：

[1] Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2022年 / 128卷 / 02期

关键词：

Phononic crystals; Additive manufacturing; Zigzag beam; Particle swarm optimization; Mass inertia moment; ACOUSTIC METAMATERIALS; WAVE-PROPAGATION; PLATES;

D O I：

10.1007/s00339-022-05267-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The material properties and geometrical features are key factors determining the structural performance of phononic crystals (PnCs). The systematic analysis revealed that the mass inertia moment is the basic physical nature in the zigzag beam-supported stepped PnCs connecting the structural performance with the material properties and geometrical features in design. The designed PnCs were fabricated by laser powder bed fusion additive manufacturing. The band gap width of the zigzag beam-supported stepped PnCs is higher than the straight one due to the change of the mass inertia moment. The zigzag beam in the PnCs based on analysis of the mass inertia moment revealed the increase of the first band gap by 17.25 kHz, which is 60% larger than the initial design.

引用

页数：11

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