Article(id=1228634268923003137, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228634261138374834, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2024.07.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1660665600000, receivedDateStr=2022-08-17, revisedDate=1668614400000, revisedDateStr=2022-11-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1770858836632, onlineDateStr=2026-02-12, pubDate=1722096000000, pubDateStr=2024-07-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770858836632, onlineIssueDateStr=2026-02-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770858836632, creator=13701087609, updateTime=1770858836632, updator=13701087609, issue=Issue{id=1228634261138374834, tenantId=1146029695717560320, journalId=1225147924628267009, year='2024', volume='37', issue='7', pageStart='1089', pageEnd='1268', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770858834775, creator=13701087609, updateTime=1770859016311, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228635022622654927, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228634261138374834, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228635022622654928, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228634261138374834, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1182, endPage=1190, ext={EN=ArticleExt(id=1228634270315512076, articleId=1228634268923003137, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Design and analysis of a piezoelectric energy harvester with enhanced negative Poisson’s ratio structure, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The existing rectangular piezoelectric cantilever beam has the shortcomings of high intrinsic frequency and low output performance. In this paper,a piezoelectric energy harvester based on the enhanced negative Poisson’s ratio structure is designed by combining a negative Poisson’s ratio structure and X-shaped ribs in an elastic substrate. The dynamics model of the energy harvester is established by using the finite element method for the piezoelectric coupling analysis and parametric analysis. The prototypes are fabricated to verify the design. The results show that the energy harvester based on enhanced negative Poisson’s ratio structure has a low first-order resonant frequency,high output voltage and power,and the addition of X-rib increases the stiffness and nonlinearity of the structure. Compared with the conventional negative Poisson’s ratio structure,the introduction of X-rib not only improves the fatigue performance of the structure,but also broadens the bandwidth by 67.87%. The energy harvester based on enhanced negative Poisson’s ratio structure is important for solving the power supply problem of wireless sensors and portable electronic mobile devices in the future.
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考虑到传统压电悬臂梁存在固有频率高,输出性能低的缺点,本文基于增强负泊松比结构设计了一种压电俘能器,在弹性基板中引入了负泊松比结构和X型肋骨。利用有限元方法建立了压电俘能器的动力学模型;通过数值方法进行了模态和压电耦合分析,并对增强负泊松比结构的俘能器进行了参数分析;搭建了实验平台,制作了压电俘能器样品,对输出性能进行验证。研究结果表明:与传统平板结构俘能器相比,增强负泊松比结构俘能器的一阶谐振频率低,输出电压和功率高,X型肋骨的加入提高了结构的刚度和非线性;相比于负泊松比结构的俘能器,X型肋骨的加入不仅改善了结构的疲劳性能,还拓宽了工作带宽。
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120(10): 103901., articleTitle=Enhancing power output of piezoelectric energy harvesting by gradient auxetic structures, refAbstract=null)], funds=[Fund(id=1228634284391596929, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, awardId=52102421, language=CN, fundingSource=国家自然科学基金资助项目(52102421), fundOrder=null, country=null), Fund(id=1228634284471288712, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, awardId=2022Z068069001, language=CN, fundingSource=航空科学基金资助项目(2022Z068069001), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1228634277517132284, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, xref=1, ext=[AuthorCompanyExt(id=1228634277525520893, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, companyId=1228634277517132284, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China), AuthorCompanyExt(id=1228634277538103806, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, companyId=1228634277517132284, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1南京理工大学机械工程学院,江苏 南京 210094)]), AuthorCompany(id=1228634277642961410, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, xref=2, ext=[AuthorCompanyExt(id=1228634277663932932, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, companyId=1228634277642961410, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2School of Mechanical Engineering, Southeast University, Nanjing 211189, China), AuthorCompanyExt(id=1228634277680710149, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, companyId=1228634277642961410, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2东南大学机械工程学院,江苏 南京 211189)])], figs=[ArticleFig(id=1228634279618478705, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.1, caption=
Piezoelectric energy harvesters with enhanced negative Poisson’s ratio structure, figureFileSmall=K23EZx5LYZpNQfpEFxaI1w==, figureFileBig=q58V6pMYziJFErRutGB+BQ==, tableContent=null), ArticleFig(id=1228634279702364789, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图1, caption=
增强负泊松比结构的压电俘能器, figureFileSmall=K23EZx5LYZpNQfpEFxaI1w==, figureFileBig=q58V6pMYziJFErRutGB+BQ==, tableContent=null), ArticleFig(id=1228634279878525570, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.2, caption=
Cantilever beam with enhanced negative Poisson’s ratio structure and unit structure, figureFileSmall=l1sFzPGtzkxdGl7yJp5WfQ==, figureFileBig=KAFZvex7/wOvzM4VhepORQ==, tableContent=null), ArticleFig(id=1228634279949828745, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图2, caption=
增强负泊松比结构悬臂梁及单元结构, figureFileSmall=l1sFzPGtzkxdGl7yJp5WfQ==, figureFileBig=KAFZvex7/wOvzM4VhepORQ==, tableContent=null), ArticleFig(id=1228634280063074957, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.3, caption=
FEM of three elastic substrates, figureFileSmall=ergdplPQRrXGLiaj5mp96w==, figureFileBig=tmyOfipisX8LGPQCvKT5wQ==, tableContent=null), ArticleFig(id=1228634280134378130, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图3, caption=
三种结构的弹性基板有限元模型, figureFileSmall=ergdplPQRrXGLiaj5mp96w==, figureFileBig=tmyOfipisX8LGPQCvKT5wQ==, tableContent=null), ArticleFig(id=1228634280235041433, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.4, caption=
The displacement distributions of three substrates along 1-axis, figureFileSmall=uzvYXi7Jw07vlTndgwFs9Q==, figureFileBig=jkHhYsl0kRJu6tfmA2Tosg==, tableContent=null), ArticleFig(id=1228634280310538911, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图4, caption=
三种结构沿1轴方向的位移图, figureFileSmall=uzvYXi7Jw07vlTndgwFs9Q==, figureFileBig=jkHhYsl0kRJu6tfmA2Tosg==, tableContent=null), ArticleFig(id=1228634280402813605, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.5, caption=
The displacement distributions of three substrates along 2-axis, figureFileSmall=gz3I7QBfv7NCaoKEvbP7mw==, figureFileBig=e+RLI0pllAJEYS4Rbnd/3g==, tableContent=null), ArticleFig(id=1228634280608334510, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图5, caption=
三种结构沿2轴方向的位移图, figureFileSmall=gz3I7QBfv7NCaoKEvbP7mw==, figureFileBig=e+RLI0pllAJEYS4Rbnd/3g==, tableContent=null), ArticleFig(id=1228634280759329460, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.6, caption=
Stress distribution of the piezo patches in the energy harvesters, figureFileSmall=AurZUd7P5Q68zzRGizYNGA==, figureFileBig=f6GOgmGMWUizl0X3XdR3iQ==, tableContent=null), ArticleFig(id=1228634280843215545, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图6, caption=
三种结构的压电俘能器上压电片的应力分布, figureFileSmall=AurZUd7P5Q68zzRGizYNGA==, figureFileBig=f6GOgmGMWUizl0X3XdR3iQ==, tableContent=null), ArticleFig(id=1228634280973238976, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.7, caption=
Output voltage-frequency response curve, figureFileSmall=T+ifnkaTQFPQHHkPqJQUEQ==, figureFileBig=ubj0v0wx69DuTf3U7OBoSA==, tableContent=null), ArticleFig(id=1228634281044542150, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图7, caption=
输出电压-频率响应曲线, figureFileSmall=T+ifnkaTQFPQHHkPqJQUEQ==, figureFileBig=ubj0v0wx69DuTf3U7OBoSA==, tableContent=null), ArticleFig(id=1228634281141011150, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.8, caption=
Output voltage-time domain response curve, figureFileSmall=fXsTJr3ZZZu5DXeFNeAHcQ==, figureFileBig=+i8SPjmYXs1j63b0/ieNZg==, tableContent=null), ArticleFig(id=1228634281250063062, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图8, caption=
输出电压-时间响应曲线, figureFileSmall=fXsTJr3ZZZu5DXeFNeAHcQ==, figureFileBig=+i8SPjmYXs1j63b0/ieNZg==, tableContent=null), ArticleFig(id=1228634281363309279, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.9, caption=
Output power density-load response curve, figureFileSmall=VT4g/YP8Tlh5WN248F5YEg==, figureFileBig=PV3ioX8N3LDUKVcFr+5l3w==, tableContent=null), ArticleFig(id=1228634281459778279, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图9, caption=
输出功率密度-负载响应曲线, figureFileSmall=VT4g/YP8Tlh5WN248F5YEg==, figureFileBig=PV3ioX8N3LDUKVcFr+5l3w==, tableContent=null), ArticleFig(id=1228634281581413103, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.10, caption=
Comparison diagram of approximate stiffness, figureFileSmall=uVKnZaQxzLM1GJoRDyY55w==, figureFileBig=bDYrawsoG9xcg0Tf49PYhQ==, tableContent=null), ArticleFig(id=1228634281673687796, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图10, caption=
刚度接近参照组的对比图, figureFileSmall=uVKnZaQxzLM1GJoRDyY55w==, figureFileBig=bDYrawsoG9xcg0Tf49PYhQ==, tableContent=null), ArticleFig(id=1228634281774351101, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.11, caption=
Stress distribution of the elastic substrate, figureFileSmall=ujY0cLtYEwr0jRYpghTwig==, figureFileBig=x3lC/kTL83f2UmesYa5yDA==, tableContent=null), ArticleFig(id=1228634281929540355, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图11, caption=
弹性基体的应力分布, figureFileSmall=ujY0cLtYEwr0jRYpghTwig==, figureFileBig=x3lC/kTL83f2UmesYa5yDA==, tableContent=null), ArticleFig(id=1228634282030203658, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.12, caption=
Failure cycle counts response diagram, figureFileSmall=hJsh1VP7X9zsH0aGwRIRxw==, figureFileBig=ShU6a26/Jj5jdTyncVAqzw==, tableContent=null), ArticleFig(id=1228634282172810001, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图12, caption=
失效循环次数响应图, figureFileSmall=hJsh1VP7X9zsH0aGwRIRxw==, figureFileBig=ShU6a26/Jj5jdTyncVAqzw==, tableContent=null), ArticleFig(id=1228634282294444823, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.13, caption=
The output response of energy harvester for rib widths from 0.4 to 0.9 mm, figureFileSmall=lyEIGUUltPlHGjGr8PGiRw==, figureFileBig=hpjk0AN1IKqZsUalCfagEw==, tableContent=null), ArticleFig(id=1228634282420273952, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图13, caption=
肋骨宽度为0.4~0.9 mm的俘能器输出响应, figureFileSmall=lyEIGUUltPlHGjGr8PGiRw==, figureFileBig=hpjk0AN1IKqZsUalCfagEw==, tableContent=null), ArticleFig(id=1228634282558685989, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.14, caption=
The output response of energy harvester for negative Poisson’s ratio structure widths from 0.4 to 0.8 mm, figureFileSmall=6+Ymo7pNtX4X2VTHk4ar5w==, figureFileBig=bHbhuzIxPJBsZGCzpxEDJw==, tableContent=null), ArticleFig(id=1228634282671932206, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图14, caption=
负泊松比结构宽度为0.4~0.8 mm的俘能器输出响应, figureFileSmall=6+Ymo7pNtX4X2VTHk4ar5w==, figureFileBig=bHbhuzIxPJBsZGCzpxEDJw==, tableContent=null), ArticleFig(id=1228634282776789809, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.15, caption=
The output performance of energy harvester for negative Poisson’s ratio structure inner concave angle from 50° to 70°, figureFileSmall=HpAv/YH3mzyfDOCqUm9vuA==, figureFileBig=Pufs3Eq93BU5w43FLaxdXA==, tableContent=null), ArticleFig(id=1228634282873258807, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图15, caption=
负泊松比结构内凹角度为50°~70°的俘能器输出响应, figureFileSmall=HpAv/YH3mzyfDOCqUm9vuA==, figureFileBig=Pufs3Eq93BU5w43FLaxdXA==, tableContent=null), ArticleFig(id=1228634283015865148, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.16, caption=
Experimental platform, figureFileSmall=BxnVJGiUQ2YshLcOwbdXHg==, figureFileBig=1mg/9MXMUprExzh5EAPuYw==, tableContent=null), ArticleFig(id=1228634283137499968, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图16, caption=
实验平台, figureFileSmall=BxnVJGiUQ2YshLcOwbdXHg==, figureFileBig=1mg/9MXMUprExzh5EAPuYw==, tableContent=null), ArticleFig(id=1228634283330437959, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.17, caption=
Output voltage-load response curve, figureFileSmall=Pdg8W96aosEIevdsRvvQ5w==, figureFileBig=DfXwwpZrMUZ/8t35Jqz2ww==, tableContent=null), ArticleFig(id=1228634283426906957, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图17, caption=
输出电压-负载响应曲线, figureFileSmall=Pdg8W96aosEIevdsRvvQ5w==, figureFileBig=DfXwwpZrMUZ/8t35Jqz2ww==, tableContent=null), ArticleFig(id=1228634283582096214, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Fig.18, caption=
Output power density-load response curve, figureFileSmall=X9SeoSw7vAO+NtukyuHGYQ==, figureFileBig=lSEkL4q1mXZcz4QF0oFd8Q==, tableContent=null), ArticleFig(id=1228634283665982302, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=图18, caption=
输出功率密度-负载响应曲线, figureFileSmall=X9SeoSw7vAO+NtukyuHGYQ==, figureFileBig=lSEkL4q1mXZcz4QF0oFd8Q==, tableContent=null), ArticleFig(id=1228634283783422819, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Tab.1, caption=
Material properties
, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 属性 | 数值 |
|---|
| 弹性基体 | 密度/(kg⋅m-3) | 7850 |
| 泊松比 | 0.3 |
| 杨氏模量/GPa | 200 |
| 质量块 | 密度/(kg⋅m-3) | 6500 |
| 泊松比 | 0.34 |
| 杨氏模量/GPa | 160 |
| 压电片 | 密度/(kg⋅m-3) | 7750 |
| 柔度常数/Pa-1 | 1.64×10-11 |
| -5.74×10-12 |
| -7.22×10-12 |
| 1.64×10-11 |
| -7.22×10-12 |
| 1.88×10-11 |
| 4.75×10-11 |
| 4.75×10-11 |
| 4.43×10-11 |
| 耦合系数/(C⋅N-1) | -1.71×10-10 |
| -1.71×10-10 |
| 3.74×10-10 |
| 5.84×10-10 |
| 5.84×10-10 |
| 环氧树脂 | 密度/(kg⋅m-3) | 1100 |
| 泊松比 | 0.35 |
| 杨氏模量/GPa | 0.02 |
), ArticleFig(id=1228634283892474729, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=表1, caption=
材料属性
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| 部件 | 属性 | 数值 |
|---|
| 弹性基体 | 密度/(kg⋅m-3) | 7850 |
| 泊松比 | 0.3 |
| 杨氏模量/GPa | 200 |
| 质量块 | 密度/(kg⋅m-3) | 6500 |
| 泊松比 | 0.34 |
| 杨氏模量/GPa | 160 |
| 压电片 | 密度/(kg⋅m-3) | 7750 |
| 柔度常数/Pa-1 | 1.64×10-11 |
| -5.74×10-12 |
| -7.22×10-12 |
| 1.64×10-11 |
| -7.22×10-12 |
| 1.88×10-11 |
| 4.75×10-11 |
| 4.75×10-11 |
| 4.43×10-11 |
| 耦合系数/(C⋅N-1) | -1.71×10-10 |
| -1.71×10-10 |
| 3.74×10-10 |
| 5.84×10-10 |
| 5.84×10-10 |
| 环氧树脂 | 密度/(kg⋅m-3) | 1100 |
| 泊松比 | 0.35 |
| 杨氏模量/GPa | 0.02 |
), ArticleFig(id=1228634284005720940, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Tab.2, caption=
Average stress of piezoelectric patches along axes 1 and 2
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| 俘能器结构 | /Pa | /Pa |
|---|
| 平板结构 | 20054 | -392.6 |
| 负泊松比结构 | 37445 | 3645.7 |
| 增强负泊松比结构 | 36684 | 1922.4 |
), ArticleFig(id=1228634284097995631, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=表2, caption=
压电片沿1轴和2轴的平均应力
, figureFileSmall=null, figureFileBig=null, tableContent=
| 俘能器结构 | /Pa | /Pa |
|---|
| 平板结构 | 20054 | -392.6 |
| 负泊松比结构 | 37445 | 3645.7 |
| 增强负泊松比结构 | 36684 | 1922.4 |
), ArticleFig(id=1228634284181881716, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=EN, label=Tab.3, caption=
Mass properties of three kinds of energy harvesters
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| 俘能器结构 | 弹性基板/g | 环氧树脂/g | 压电材料/g | 质量块/g | 总体质量/g |
|---|
| 平板结构 | 16.72 | 0.20 | 2.79 | 7.8 | 27.51 |
| 负泊松比结构 | 7.64 | 0.07 | 2.79 | 7.8 | 18.30 |
| 增强负泊松比结构 | 9.26 | 0.09 | 2.79 | 7.8 | 19.94 |
), ArticleFig(id=1228634284269962104, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634268923003137, language=CN, label=表3, caption=
三种俘能器的质量属性
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| 俘能器结构 | 弹性基板/g | 环氧树脂/g | 压电材料/g | 质量块/g | 总体质量/g |
|---|
| 平板结构 | 16.72 | 0.20 | 2.79 | 7.8 | 27.51 |
| 负泊松比结构 | 7.64 | 0.07 | 2.79 | 7.8 | 18.30 |
| 增强负泊松比结构 | 9.26 | 0.09 | 2.79 | 7.8 | 19.94 |
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