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论文类型:期刊论文
第一作者:Zhang, Z.
通讯作者:Zhang, Z (reprint author), Dalian Univ Technol, Fac Vehicle Engn & Mech, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.
合写作者:Han, X. K.,Ji, G. M.
发表时间:2018-12-01
发表刊物:JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
收录刊物:SCIE
卷号:123
页面范围:235-241
ISSN号:0022-3697
关键字:Phononic crystal; Band gap; Local resonance; Analytical method
摘要:New expressions of equivalent stiffness and equivalent mass are proposed to study the mechanism for the formation of the band gap in cylindrical three-component phononic crystals. The vibration modes are classified into three classes: transverse, longitudinal, and torsional modes. For each mode, the new expressions for the equivalent stiffnesses and equivalent masses of the spring-mass system are deduced, and these can be used to investigate the key factors for the determination of the band gap in the designed three-component phononic crystal. The results indicate that the flat band is a special feature of the designed cylindrical three-component phononic crystal. Equivalent inertia is the key factor for the determination of the flat band and the band gap in this three-component phononic crystal.