Article(id=1319987064045683017, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210597, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1626883200000, receivedDateStr=2021-07-22, revisedDate=1635955200000, revisedDateStr=2021-11-04, acceptedDate=null, acceptedDateStr=null, onlineDate=1792639040241, onlineDateStr=2026-10-22, pubDate=1647705600000, pubDateStr=2022-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792639040241, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792639040241, creator=13701087609, updateTime=1792639040241, updator=13701087609, issue=Issue{id=1319986978137944236, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='3', pageStart='555', pageEnd='876', issueExtLink='null', onlineDate='null', pubDate='1647705600000', pubDateStr='2022-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792639019760, creator='13701087609', updateTime=1792639223744, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319987833767575858, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319987833767575859, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=775, endPage=781, ext={EN=ArticleExt(id=1319987064255398218, articleId=1319987064045683017, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Band Gap Characteristics of Phononic Crystals with Bilateral Asymmetric Two-dimensional Hollow Scatterers, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

In order to solve the problem for high initial frequency of unilateral lightweight phononic crystals, a phononic crystal structure of bilateral hollow asymmetric scatterers was proposed based on the local resonance mechanism. The energy band structure, transmission loss spectrum and intrinsic displacement field of phononic crystals with bilateral hollow asymmetric scatterers were calculated by the finite element method. The ultra-wide first complete band gap with an initial frequency of 79.4 Hz and a bandwidth of 1 065.2 Hz was obtained. Combined with an equivalent spring mass system, the vibration modes of the intrinsic displacement field of the marked points were analyzed, and the mechanism of band gap formation in phononic crystals of bilateral hollow asymmetric scatterers was revealed. Furthermore, effects of the geometric parameters such as notch angle of cladding, width of connecting short plate and height of hollow cylindrical scatterer on the first complete band gap were analyzed, and the geometric parameters of the phononic crystal were adjusted to control the band gap frequency. The results show that the initial frequency of the first complete band gap of the proposed bilateral asymmetric two-dimensional hollow scatterer phononic crystal effectively reduces to less than 80 Hz, and the bandwidth exceeds 1 000 Hz. Adjusting the structural parameters of phononic crystals can realize the coexistence of local resonance and the Bragg scattering band gap in a phononic crystal, which makes it possible for a single phononic crystal to regulate the low-frequency and high-frequency band gaps simultaneously.

, authors=Wei LIU1, Zeyin HE1, 2, Aijun FAN2, Ping'an TAO2, Hongmei LIU2, Shizheng SUN1, authorsList=Wei LIU, Zeyin HE, Aijun FAN, Ping'an TAO, Hongmei LIU, Shizheng SUN, authorCompany=null, correspAuthors=Zeyin HE, authorNote=

LIU Wei (1997-), male, Master candidate. E-mail:

, correspAuthorsNote=
HE Zeyin(1985-), male, Ph.D. Professor. E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319987064481890635, articleId=1319987064045683017, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=双侧空心不对称散射体声子晶体带隙机理, columnId=1263922770220560512, journalTitle=硅酸盐学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

基于局域共振机理提出1种双侧空心不对称散射体声子晶体结构,借助有限元法,计算了双侧空心不对称散射体声子晶体能带结构、传输损失谱及本征位移场,得到了起始频率为79.4 Hz、带宽为1 065.2 Hz的超宽第1完全带隙。结合等效弹簧质量系统,分析标记点的本征位移场振动模态,揭示出新型双侧空心不对称散射体声子晶体带隙形成机理。分析了包裹层缺口角度、连接短板宽度、空心圆柱散射体高度等几何参数对第1完全带隙的影响规律,并改变声子晶体几何参数实现对带隙频率的调控。结果表明:双侧不对称二维空心散射体声子晶体第1完全带隙的起始频率有效降低至80 Hz以下,带宽超过1 000 Hz;改变声子晶体结构参数可实现局域共振与Bragg散射带隙同时存在于一种声子晶体中,为单一声子晶体同时调控低频、高频带隙提供了可能。

, authors=刘威1, 何泽银1, 2, 范爱军2, 陶平安2, 刘红梅2, 孙世政1, authorsList=刘威, 何泽银, 范爱军, 陶平安, 刘红梅, 孙世政, authorCompany=null, correspAuthors=何泽银, authorNote=

刘威(1997—),男,硕士研究生。

, correspAuthorsNote=
何泽银(1985—),男,教授。
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双侧空心不对称散射体声子晶体带隙机理
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刘威 1 , 何泽银 1, 2 , 范爱军 2 , 陶平安 2 , 刘红梅 2 , 孙世政 1
硅酸盐学报 | 研究论文 2022,50(3): 775-781
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硅酸盐学报 |研究论文 2022 , 50 (3) : 775 -781
双侧空心不对称散射体声子晶体带隙机理
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刘威1 , 何泽银1, 2 , 范爱军2, 陶平安2, 刘红梅2, 孙世政1
作者信息
  • 1.重庆交通大学机电与车辆工程学院,重庆 400074
  • 2.重庆建设汽车系统股份有限公司,重庆 400052
通讯作者:
何泽银(1985—),男,教授。
作者简介:

刘威(1997—),男,硕士研究生。

Band Gap Characteristics of Phononic Crystals with Bilateral Asymmetric Two-dimensional Hollow Scatterers
Wei LIU1 , Zeyin HE1, 2 , Aijun FAN2, Ping'an TAO2, Hongmei LIU2, Shizheng SUN1
Affiliations
  • 1.School of Mechatronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • 2.Chongqing Construction Automotive Systems Co., Ltd., Chongqing 400052, China
  • Corresponding Author:
    HE Zeyin(1985-), male, Ph.D. Professor. E-mail:

    LIU Wei (1997-), male, Master candidate. E-mail:

出版时间: 2022-03-20 doi: 10.14062/j.issn.0454-5648.20210597
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基于局域共振机理提出1种双侧空心不对称散射体声子晶体结构,借助有限元法,计算了双侧空心不对称散射体声子晶体能带结构、传输损失谱及本征位移场,得到了起始频率为79.4 Hz、带宽为1 065.2 Hz的超宽第1完全带隙。结合等效弹簧质量系统,分析标记点的本征位移场振动模态,揭示出新型双侧空心不对称散射体声子晶体带隙形成机理。分析了包裹层缺口角度、连接短板宽度、空心圆柱散射体高度等几何参数对第1完全带隙的影响规律,并改变声子晶体几何参数实现对带隙频率的调控。结果表明:双侧不对称二维空心散射体声子晶体第1完全带隙的起始频率有效降低至80 Hz以下,带宽超过1 000 Hz;改变声子晶体结构参数可实现局域共振与Bragg散射带隙同时存在于一种声子晶体中,为单一声子晶体同时调控低频、高频带隙提供了可能。

双侧空心不对称  /  声子晶体  /  局域共振  /  完全带隙  /  低频振动控制

In order to solve the problem for high initial frequency of unilateral lightweight phononic crystals, a phononic crystal structure of bilateral hollow asymmetric scatterers was proposed based on the local resonance mechanism. The energy band structure, transmission loss spectrum and intrinsic displacement field of phononic crystals with bilateral hollow asymmetric scatterers were calculated by the finite element method. The ultra-wide first complete band gap with an initial frequency of 79.4 Hz and a bandwidth of 1 065.2 Hz was obtained. Combined with an equivalent spring mass system, the vibration modes of the intrinsic displacement field of the marked points were analyzed, and the mechanism of band gap formation in phononic crystals of bilateral hollow asymmetric scatterers was revealed. Furthermore, effects of the geometric parameters such as notch angle of cladding, width of connecting short plate and height of hollow cylindrical scatterer on the first complete band gap were analyzed, and the geometric parameters of the phononic crystal were adjusted to control the band gap frequency. The results show that the initial frequency of the first complete band gap of the proposed bilateral asymmetric two-dimensional hollow scatterer phononic crystal effectively reduces to less than 80 Hz, and the bandwidth exceeds 1 000 Hz. Adjusting the structural parameters of phononic crystals can realize the coexistence of local resonance and the Bragg scattering band gap in a phononic crystal, which makes it possible for a single phononic crystal to regulate the low-frequency and high-frequency band gaps simultaneously.

bilateral hollow asymmetry  /  phononic crystal  /  locally resonance  /  complete band gap  /  low frequency vibration control
刘威, 何泽银, 范爱军, 陶平安, 刘红梅, 孙世政. 双侧空心不对称散射体声子晶体带隙机理. 硅酸盐学报, 2022 , 50 (3) : 775 -781 . DOI: 10.14062/j.issn.0454-5648.20210597
Wei LIU, Zeyin HE, Aijun FAN, Ping'an TAO, Hongmei LIU, Shizheng SUN. Band Gap Characteristics of Phononic Crystals with Bilateral Asymmetric Two-dimensional Hollow Scatterers[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (3) : 775 -781 . DOI: 10.14062/j.issn.0454-5648.20210597
  • 国家自然科学基金项目(52005066)
  • 重庆市自然科学基金(cstc2019jcyj-msxmX0799)
  • 重庆市九龙坡科技计划项目(2020-02-001-Z)
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doi: 10.14062/j.issn.0454-5648.20210597
  • 接收时间:2021-07-22
  • 首发时间:2026-10-22
  • 出版时间:2022-03-20
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  • 收稿日期:2021-07-22
  • 修回日期:2021-11-04
基金
国家自然科学基金项目(52005066)
重庆市自然科学基金(cstc2019jcyj-msxmX0799)
重庆市九龙坡科技计划项目(2020-02-001-Z)
作者信息
    1.重庆交通大学机电与车辆工程学院,重庆 400074
    2.重庆建设汽车系统股份有限公司,重庆 400052

通讯作者:

何泽银(1985—),男,教授。
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2种不同金属材料的力学参数
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species
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total species (%)
属
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种数
Number of
species
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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