Article(id=1241029733115294687, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241029724655383270, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.02.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1685376000000, receivedDateStr=2023-05-30, revisedDate=1687795200000, revisedDateStr=2023-06-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1773814145591, onlineDateStr=2026-03-18, pubDate=1739548800000, pubDateStr=2025-02-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773814145591, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773814145591, creator=13701087609, updateTime=1773814145591, updator=13701087609, issue=Issue{id=1241029724655383270, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='2', pageStart='1', pageEnd='158', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773814143575, creator=13701087609, updateTime=1773840259815, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241139264176574915, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241029724655383270, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241139264176574916, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241029724655383270, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=75, endPage=84, ext={EN=ArticleExt(id=1241029733505363970, articleId=1241029733115294687, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Study on improvement for the excitation performance of BV500 type controlled seismic source vibrator plate based on topology optimization method, columnId=1241029728077935367, journalTitle=Journal of Mechanical Strength, columnName=Optimization∙Reliability, runingTitle=null, highlight=null, articleAbstract=
During the operation of the BV500 type controlled seismic source vibrator in Sichuan and Chongqing areas,due to the improper plate design, the vibration energy down-transfer rate is low and the excitation signal distortion is serious.Therefore, the continuum topology optimization method was introduced, and a variable density method of the solid isotropic material with penalization (SIMP) model was used to optimize the design of BV500 controlled seismic source vibrator plate from two aspects — reducing mass and increasing stiffness, and an “octagonal I-steel-20a” plate was innovatively developed.After optimization, the mass of the plate was reduced by 45.29%, and the stiffness of the plate was increased by 79.92%, the vibration performance of the plate before and after optimization is studied.The simulation results show that compared with the original aluminum alloy plate, the energy down-transfer rate of the “octagonal I-steel-20a” plate increases by 15.11%, the displacement amplitude of the ground surface contact center point increases by 43.74%, and the amplitude of the interaction force increases by 40.56%.The field experiment shows that when the “octagonal I-beam-20a” plate is excited, the effective value of the average vibration velocity of the near-field signal of the detector is increased by 22.23%, and the effective value of the average vibration velocity of the far-field signal of the detector is increased by 39%, the law is consistent with the numerical simulation conclusion of controlled seismic source road excitation.The excitation performance of the “octagonal I-beam-20a” plate is better than that of the original aluminum alloy integral plate, which effectively improves the road excitation effect of BV500 type controlled seismic source in Sichuan and Chongqing areas.
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BV500型可控震源振动器在川渝地区作业过程中,由于平板设计不合理,导致振动能量下传率低、激发信号畸变严重。因此,引入连续体拓扑优化方法,采用固体各向同性材料惩罚(Solid Istropic Material with Penalization,SIMP)模型变密度法,从降低质量和增加刚度两个方面对BV500型可控震源振动器平板进行优化设计,创新研制了一种“八边形工字钢-20a”平板。优化后平板质量减轻了45.29%,平板刚度提升了79.92%,并开展了优化前后平板激振性能研究。仿真研究结果表明,与原铝合金整体平板相比,“八边形工字钢-20a”平板的能量下传率提高了15.11%,地表接触中心点位移振幅增大了43.74%,互作用力振幅提升了40.56%。现场实验表明,“八边形工字钢-20a”平板激振时,检波器近场信号平均振动速度有效值提升了22.23%,检波器远场信号平均振动速度有效值提升了39%,规律与可控震源道路激振数值仿真模拟结论一致。“八边形工字钢-20a”平板激振性能优于原铝合金整体平板,有效改善了BV500型可控震源在川渝地区道路激振效果。
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1.西南石油大学 机电工程学院,成都 610500, bio={"content":"
黄志强,男,1968年生,四川眉山人,博士,教授;主要研究方向为石油天然气装备等;E-mail:huangzq@swpu.edu.cn。
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黄志强,男,1968年生,四川眉山人,博士,教授;主要研究方向为石油天然气装备等;E-mail:huangzq@swpu.edu.cn。
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2019:38-46.(In Chinese), articleTitle=Experimental study on the attenuation law of site vibration under environmental excitation, refAbstract=null)], funds=[Fund(id=1241029751628952333, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=41902326, language=EN, fundingSource=National Natural Science Foundation of China(41902326), fundOrder=null, country=null), Fund(id=1241029751712838417, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=41902326, language=CN, fundingSource=国家自然科学基金项目(41902326), fundOrder=null, country=null), Fund(id=1241029751817696018, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=22GJHZ0284, language=EN, fundingSource=Sichuan Science and Technology Project(22GJHZ0284), fundOrder=null, country=null), Fund(id=1241029751897387796, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=22GJHZ0284, language=CN, fundingSource=四川省科学与技术项目(22GJHZ0284), fundOrder=null, country=null), Fund(id=1241029751960302360, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=SXHZ048, language=EN, fundingSource=Nanchong-Southwest University of Petroleum City-School Science and Technology Strategic Cooperation Special Project(SXHZ048), fundOrder=null, country=null), Fund(id=1241029752039994139, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=SXHZ048, language=CN, fundingSource=南充市-西南石油大学市校科技战略合作专项(SXHZ048), fundOrder=null, country=null), Fund(id=1241029752123880222, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=JSTKY-22-002, language=EN, fundingSource=Enterprise Horizontal Cooperation Project(JSTKY-22-002), fundOrder=null, country=null), Fund(id=1241029752220349219, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, awardId=JSTKY-22-002, language=CN, fundingSource=企业横向合作项目(JSTKY-22-002), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241029739817791856, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, xref=1., ext=[AuthorCompanyExt(id=1241029739821986161, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, companyId=1241029739817791856, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.中国石油集团东方地球物理公司勘探有限责任公司西南物探分公司,成都 610213)])], figs=[ArticleFig(id=1241029744414749238, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.1, caption=
Finite element model of excitation of the controlled seismic source on the concrete road, figureFileSmall=/e3yNzmrCtBjE8c0wQ4gOA==, figureFileBig=ySk0tCAXdgG/B0CHLmmE9A==, tableContent=null), ArticleFig(id=1241029745895338558, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图1, caption=
可控震源在水泥道路上激振的有限元模型, figureFileSmall=/e3yNzmrCtBjE8c0wQ4gOA==, figureFileBig=ySk0tCAXdgG/B0CHLmmE9A==, tableContent=null), ArticleFig(id=1241029746079887946, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.2, caption=
Load form and loading position, figureFileSmall=XY0UmKu3SSBg7X3msSccnQ==, figureFileBig=ljfWmsx0jHPcC9wKo7TVEg==, tableContent=null), ArticleFig(id=1241029746163774032, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图2, caption=
载荷形式与加载位置, figureFileSmall=XY0UmKu3SSBg7X3msSccnQ==, figureFileBig=ljfWmsx0jHPcC9wKo7TVEg==, tableContent=null), ArticleFig(id=1241029746239271512, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.3, caption=
Schematic diagram of the contact center node of the earth surface, figureFileSmall=gCFT3YFXiUabLJY66mLp9w==, figureFileBig=PLVI+uG1a9fhatVgSxH7MA==, tableContent=null), ArticleFig(id=1241029746335740508, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图3, caption=
大地表面接触中心节点示意图, figureFileSmall=gCFT3YFXiUabLJY66mLp9w==, figureFileBig=PLVI+uG1a9fhatVgSxH7MA==, tableContent=null), ArticleFig(id=1241029746419626593, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.4, caption=
Comparison of theoretical and simulated values of longitudinal wave speed for different elasticity modulus of earth, figureFileSmall=L5XfzzPr953hq8iOuF/98A==, figureFileBig=n0iEHCoUcZxV5KBlLGHBVg==, tableContent=null), ArticleFig(id=1241029746532872808, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图4, caption=
大地不同的弹性模量下纵波波速理论值与仿真值的对比, figureFileSmall=L5XfzzPr953hq8iOuF/98A==, figureFileBig=n0iEHCoUcZxV5KBlLGHBVg==, tableContent=null), ArticleFig(id=1241029746620953197, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.5, caption=
Deformation nephogram of I-beam plate, figureFileSmall=QkYQaI0cEYVqnG+3rismBA==, figureFileBig=OYuCsM5suXYb5IDK2/e7+g==, tableContent=null), ArticleFig(id=1241029746742588016, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图5, caption=
工字钢平板变形云图, figureFileSmall=QkYQaI0cEYVqnG+3rismBA==, figureFileBig=OYuCsM5suXYb5IDK2/e7+g==, tableContent=null), ArticleFig(id=1241029746847445620, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.6, caption=
Topology optimization results of I-beam plate, figureFileSmall=2RE5jyJ+CPizg3Mmx+566Q==, figureFileBig=E/2P+2gf4V/X9wLgbRFYXQ==, tableContent=null), ArticleFig(id=1241029746948108924, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图6, caption=
工字钢平板拓扑优化结果, figureFileSmall=2RE5jyJ+CPizg3Mmx+566Q==, figureFileBig=E/2P+2gf4V/X9wLgbRFYXQ==, tableContent=null), ArticleFig(id=1241029747044577922, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.7, caption=
Octagonal I-beam plate, figureFileSmall=T6pQlFa2mAR8gh5V5AGOWg==, figureFileBig=f5+yrYHAqOhVWASEt2yGaw==, tableContent=null), ArticleFig(id=1241029747157824138, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图7, caption=
八边形工字钢平板, figureFileSmall=T6pQlFa2mAR8gh5V5AGOWg==, figureFileBig=f5+yrYHAqOhVWASEt2yGaw==, tableContent=null), ArticleFig(id=1241029747241710222, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.8, caption=
Comparison of excitation strength of different types of I-beams, figureFileSmall=mBJkgT1sCPLKrn1nTkn80w==, figureFileBig=iWYQPK9Bxn9Pz0GXAJnN9A==, tableContent=null), ArticleFig(id=1241029747333984914, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图8, caption=
不同类型工字钢激振强度对比, figureFileSmall=mBJkgT1sCPLKrn1nTkn80w==, figureFileBig=iWYQPK9Bxn9Pz0GXAJnN9A==, tableContent=null), ArticleFig(id=1241029747459814040, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.9, caption=
Comparison of signal quality of different types of I-beam excitation, figureFileSmall=ZYR2rjRHqmg3nsjd8LQGoQ==, figureFileBig=h0LtSLoqDS01LI3PmRDRdg==, tableContent=null), ArticleFig(id=1241029747556283036, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图9, caption=
不同类型工字钢激发信号质量对比, figureFileSmall=ZYR2rjRHqmg3nsjd8LQGoQ==, figureFileBig=h0LtSLoqDS01LI3PmRDRdg==, tableContent=null), ArticleFig(id=1241029747644363419, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.10, caption=
Analysis of excitation effect of different types of I-beam plates, figureFileSmall=xYwsqakgfl9SpDOttdZvhQ==, figureFileBig=hTh2yuzrFrdsZqd3faZF2Q==, tableContent=null), ArticleFig(id=1241029747740832419, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图10, caption=
不同类型工字钢平板激振效果分析, figureFileSmall=xYwsqakgfl9SpDOttdZvhQ==, figureFileBig=hTh2yuzrFrdsZqd3faZF2Q==, tableContent=null), ArticleFig(id=1241029747841495718, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.11, caption=
BV500 type controlled seismic source vibrator plate, figureFileSmall=o+SNNDjWcFLS41SruhHK1Q==, figureFileBig=22EnDAkDsdQbjfwvl7CMTQ==, tableContent=null), ArticleFig(id=1241029747937964717, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图11, caption=
BV500型可控震源振动器平板, figureFileSmall=o+SNNDjWcFLS41SruhHK1Q==, figureFileBig=22EnDAkDsdQbjfwvl7CMTQ==, tableContent=null), ArticleFig(id=1241029748021850801, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.12, caption=
Test site for excitation of the concrete road, figureFileSmall=7YLxknsvRWoW0vG4AEoSAg==, figureFileBig=jpXFA93SJ/IIIlEh4Xmyvg==, tableContent=null), ArticleFig(id=1241029748088959672, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图12, caption=
水泥路面激振试验场地, figureFileSmall=7YLxknsvRWoW0vG4AEoSAg==, figureFileBig=jpXFA93SJ/IIIlEh4Xmyvg==, tableContent=null), ArticleFig(id=1241029748189622973, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.13, caption=
Comparison of vibration speed of geophones in continuous sweep loading process, figureFileSmall=nwM/Pl0ejXYw3AVjNrTeJA==, figureFileBig=W8uC+XIVu6ILK814JcY6eg==, tableContent=null), ArticleFig(id=1241029748277703362, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图13, caption=
连续扫频加载过程检波器振动速度对比, figureFileSmall=nwM/Pl0ejXYw3AVjNrTeJA==, figureFileBig=W8uC+XIVu6ILK814JcY6eg==, tableContent=null), ArticleFig(id=1241029748349006533, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.14, caption=
Comparison of vibration speed of detector in low frequency band loading process, figureFileSmall=7X0QKJlTUM7lI1mFM3AXAg==, figureFileBig=XzIbTVqQ7Z9F8P3af65PgQ==, tableContent=null), ArticleFig(id=1241029748441281227, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图14, caption=
低频段加载过程检波器振动速度对比, figureFileSmall=7X0QKJlTUM7lI1mFM3AXAg==, figureFileBig=XzIbTVqQ7Z9F8P3af65PgQ==, tableContent=null), ArticleFig(id=1241029748529361616, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.15, caption=
Comparison of vibration speed of geophones in medium frequency band loading process, figureFileSmall=8wzoJgWnT8M1jNbbpXKZDg==, figureFileBig=Gm2+vSFpDaaXfjwbRqgARQ==, tableContent=null), ArticleFig(id=1241029748621636306, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图15, caption=
中频段加载过程检波器振动速度对比, figureFileSmall=8wzoJgWnT8M1jNbbpXKZDg==, figureFileBig=Gm2+vSFpDaaXfjwbRqgARQ==, tableContent=null), ArticleFig(id=1241029748718105302, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Fig.16, caption=
Comparison of vibration speed of detector in high frequency band loading process, figureFileSmall=JC/aBz2kKgJ+39DEHgwjgQ==, figureFileBig=8XcSWD+WGIXSn+QzZJ1tCw==, tableContent=null), ArticleFig(id=1241029748789408475, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=图16, caption=
高频段加载过程检波器振动速度对比, figureFileSmall=JC/aBz2kKgJ+39DEHgwjgQ==, figureFileBig=8XcSWD+WGIXSn+QzZJ1tCw==, tableContent=null), ArticleFig(id=1241029748869100254, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.1, caption=
Material characteristic parameters of the vibrator plate, concrete road and the earth
, figureFileSmall=null, figureFileBig=null, tableContent=
部件 Part | 材料 Material | 密度 Density ρ/(kg/m³) | 弹性模量 Modulus of elasticity E/MPa | 泊松比 Poisson ratio ν |
|---|
平板 Plate | 铝合金 Aluminum alloy | 2 770 | 71 000 | 0.33 |
16Mn 钢 16Mn steel | 7 850 | 212 000 | 0.31 |
平板以上结构 Structure bove the plate | 45钢 45 steel | 7 890 | 209 000 | 0.269 |
道路 Road | 混凝土 Concrete | 2 600 | 30 000 | 0.26 |
大地 The earth | 硬质土 Hard soil | 1 800 | 200 | 0.32 |
砂岩 Sandstone | 2 600 | 19 300 | 0.38 |
), ArticleFig(id=1241029748940403425, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表1, caption=
振动器平板、水泥道路和大地材料特性参数
, figureFileSmall=null, figureFileBig=null, tableContent=
部件 Part | 材料 Material | 密度 Density ρ/(kg/m³) | 弹性模量 Modulus of elasticity E/MPa | 泊松比 Poisson ratio ν |
|---|
平板 Plate | 铝合金 Aluminum alloy | 2 770 | 71 000 | 0.33 |
16Mn 钢 16Mn steel | 7 850 | 212 000 | 0.31 |
平板以上结构 Structure bove the plate | 45钢 45 steel | 7 890 | 209 000 | 0.269 |
道路 Road | 混凝土 Concrete | 2 600 | 30 000 | 0.26 |
大地 The earth | 硬质土 Hard soil | 1 800 | 200 | 0.32 |
砂岩 Sandstone | 2 600 | 19 300 | 0.38 |
), ArticleFig(id=1241029750437769960, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.2, caption=
Verification parameter of the wave speed
, figureFileSmall=null, figureFileBig=null, tableContent=
仿真模型波速 Simulation model wave speed v1/(m/s) | 纵波理论波速 Theoretical longitudinal wave speed v2/(m/s) | v1与v2的相对误差 Relative error of v1 and v2 Δ1/% |
|---|
| 2 944.098 | 2 724.532 | 7.458 |
), ArticleFig(id=1241029750530044652, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表2, caption=
波速验证参数
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仿真模型波速 Simulation model wave speed v1/(m/s) | 纵波理论波速 Theoretical longitudinal wave speed v2/(m/s) | v1与v2的相对误差 Relative error of v1 and v2 Δ1/% |
|---|
| 2 944.098 | 2 724.532 | 7.458 |
), ArticleFig(id=1241029750651679472, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.3, caption=
Comparison of the excitation performance of two types of flat plates
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评价指标 Evaluation indicators | 铝合金整体平板 Aluminum monolithic integral plate | 工字钢平板 I-beam plate |
|---|
能量下传率 Energy down-transfer rate/% | 3.94 | 4.14 |
地表接触中心点位移振幅 Ground surface contact center point displacement amplitude/mm | 0.543 | 0.661 |
互作用力振幅 Interaction force amplitude/kN | 229.566 | 262.542 |
互作用力失真度 Interaction force distortion degree /% | 26.09 | 30.14 |
互作用力均匀性 Uniformity of interaction forces | 3.09 | 2.42 |
脱耦面积占比 Percentage of decoupling area /% | 24 | 20.36 |
), ArticleFig(id=1241029750752342772, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表3, caption=
两种平板激振性能对比
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评价指标 Evaluation indicators | 铝合金整体平板 Aluminum monolithic integral plate | 工字钢平板 I-beam plate |
|---|
能量下传率 Energy down-transfer rate/% | 3.94 | 4.14 |
地表接触中心点位移振幅 Ground surface contact center point displacement amplitude/mm | 0.543 | 0.661 |
互作用力振幅 Interaction force amplitude/kN | 229.566 | 262.542 |
互作用力失真度 Interaction force distortion degree /% | 26.09 | 30.14 |
互作用力均匀性 Uniformity of interaction forces | 3.09 | 2.42 |
脱耦面积占比 Percentage of decoupling area /% | 24 | 20.36 |
), ArticleFig(id=1241029750844617464, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.4, caption=
Mass and stiffness of different types of flat plates
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| 名称 Title | 铝合金整体平板 Aluminum monolithic integral plate | 16Mn-工字钢平板 16Mn-I-beam plate | 20a-工字钢平板 20a-octagonal I-beam plate | 20a-八边形工字钢平板 20a-octagonal I-beam plate | 22a-八边形工字钢平板 22a-octagonal I-beam plate |
|---|
| 质量 Mass/kg | 975.04 | 533 | 614.46 | 533.47 | 574.23 |
| 刚度 Stiffness/(kN·m2) | 2 665.81 | 3 106.01 | 5 524.51 | 4 796.38 | 6 269.03 |
), ArticleFig(id=1241029750941086459, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表4, caption=
不同类型平板的质量和刚度
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| 名称 Title | 铝合金整体平板 Aluminum monolithic integral plate | 16Mn-工字钢平板 16Mn-I-beam plate | 20a-工字钢平板 20a-octagonal I-beam plate | 20a-八边形工字钢平板 20a-octagonal I-beam plate | 22a-八边形工字钢平板 22a-octagonal I-beam plate |
|---|
| 质量 Mass/kg | 975.04 | 533 | 614.46 | 533.47 | 574.23 |
| 刚度 Stiffness/(kN·m2) | 2 665.81 | 3 106.01 | 5 524.51 | 4 796.38 | 6 269.03 |
), ArticleFig(id=1241029751020778237, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.5, caption=
Excitation performance comparison of BV500 type vibrators using different types of I-beam plates
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平板类型 Plate Type | 能量下传率 Energy down-transfer rate/% | 地表接触中心位移振幅 Ground surface contact center displacement amplitude/mm | 互作用力振幅 Interaction force amplitude/kN | 互作用力失真度 Interaction force distortion degree/% | 互作用力均匀性 Uniformity of interaction forces | 脱耦面积占比 Percentage of decoupling area/% |
|---|
“工字钢-20a”平板 "I-beam-20a" plate | 4.15 | 0.676 | 260.994 | 28.81 | 2.79 | 18.42 |
“八边形工字钢-20a”平板 "Octagonal I-beam-20a" plate | 4.19 | 0.723 | 265.478 | 31.11 | 3.04 | 17.52 |
“八边形工字钢-22a”平板 "Octagonal I-beam-22a" plate | 4.01 | 0.660 | 257.404 | 31.11 | 1.88 | 16.34 |
), ArticleFig(id=1241029751121441540, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表5, caption=
BV500型振动器采用不同型号工字钢平板激振性能对比
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平板类型 Plate Type | 能量下传率 Energy down-transfer rate/% | 地表接触中心位移振幅 Ground surface contact center displacement amplitude/mm | 互作用力振幅 Interaction force amplitude/kN | 互作用力失真度 Interaction force distortion degree/% | 互作用力均匀性 Uniformity of interaction forces | 脱耦面积占比 Percentage of decoupling area/% |
|---|
“工字钢-20a”平板 "I-beam-20a" plate | 4.15 | 0.676 | 260.994 | 28.81 | 2.79 | 18.42 |
“八边形工字钢-20a”平板 "Octagonal I-beam-20a" plate | 4.19 | 0.723 | 265.478 | 31.11 | 3.04 | 17.52 |
“八边形工字钢-22a”平板 "Octagonal I-beam-22a" plate | 4.01 | 0.660 | 257.404 | 31.11 | 1.88 | 16.34 |
), ArticleFig(id=1241029751201133315, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.6, caption=
Comparison of flat plate excitation performance before and after optimization
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平板类型 Plate type | 能量下传率 Energy down-transfer rate/% | 地表接触中心位移振幅 Ground surface contact center displacement amplitude/mm | 互作用力振幅 Interaction force amplitude/kN | 互作用力失真度 Interaction force distortion degree/% | 互作用力均匀性Uniformity of interaction forces | 脱耦面积占比 Percentage of decoupling area/% |
|---|
铝合金整体平板 Aluminum monolithic integral plate | 3.64 | 0.503 | 188.878 | 25.77 | 2.08 | 14.28 |
16Mn-工字钢平板 16Mn-I-beam plate | 4.14 | 0.661 | 262.542 | 30.14 | 2.42 | 20.36 |
“八边形工字钢-20a”平板 "Octagonal I-beam-20a" plate | 4.19 | 0.723 | 265.478 | 31.11 | 3.04 | 17.52 |
), ArticleFig(id=1241029751280825093, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表6, caption=
优化前后平板激振性能对比
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平板类型 Plate type | 能量下传率 Energy down-transfer rate/% | 地表接触中心位移振幅 Ground surface contact center displacement amplitude/mm | 互作用力振幅 Interaction force amplitude/kN | 互作用力失真度 Interaction force distortion degree/% | 互作用力均匀性Uniformity of interaction forces | 脱耦面积占比 Percentage of decoupling area/% |
|---|
铝合金整体平板 Aluminum monolithic integral plate | 3.64 | 0.503 | 188.878 | 25.77 | 2.08 | 14.28 |
16Mn-工字钢平板 16Mn-I-beam plate | 4.14 | 0.661 | 262.542 | 30.14 | 2.42 | 20.36 |
“八边形工字钢-20a”平板 "Octagonal I-beam-20a" plate | 4.19 | 0.723 | 265.478 | 31.11 | 3.04 | 17.52 |
), ArticleFig(id=1241029751394071304, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=EN, label=Tab.7, caption=
Test scheme design
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激发方式 Excitation method | 激发参数 Excitation parameters | 激振地表类型 Excitation ground surface type | 加载时间 Loading time t/s | 接收信号类型 Receiving signal type |
|---|
连续扫频 Continuous frequency sweep/Hz | 3~96 Hz | 水泥地表激振 Concrete ground surface excitation | 12 | 近场信号 Near field signal 远场信号 Far field signal |
单频率 Single frequency/Hz | 低频段 Low frequency band:10、20、30 Hz |
| 中频段 Mid frequency band:40、50、60 Hz |
| 高频段 High frequency band:70、80、90 Hz |
), ArticleFig(id=1241029751498928906, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241029733115294687, language=CN, label=表7, caption=
试验方案设计
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激发方式 Excitation method | 激发参数 Excitation parameters | 激振地表类型 Excitation ground surface type | 加载时间 Loading time t/s | 接收信号类型 Receiving signal type |
|---|
连续扫频 Continuous frequency sweep/Hz | 3~96 Hz | 水泥地表激振 Concrete ground surface excitation | 12 | 近场信号 Near field signal 远场信号 Far field signal |
单频率 Single frequency/Hz | 低频段 Low frequency band:10、20、30 Hz |
| 中频段 Mid frequency band:40、50、60 Hz |
| 高频段 High frequency band:70、80、90 Hz |
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