Article(id=1243879676406509853, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243879674670072443, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2024.07.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1704470400000, receivedDateStr=2024-01-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774493625022, onlineDateStr=2026-03-26, pubDate=1721404800000, pubDateStr=2024-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774493625022, onlineIssueDateStr=2026-03-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774493625022, creator=13701087609, updateTime=1774493625022, updator=13701087609, issue=Issue{id=1243879674670072443, tenantId=1146029695717560320, journalId=1240685776644648972, year='2024', volume='28', issue='7', pageStart='967', pageEnd='1132', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774493624607, creator=13701087609, updateTime=1774493869111, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1243880700257087675, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243879674670072443, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243880700257087676, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243879674670072443, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1111, endPage=1123, ext={EN=ArticleExt(id=1243879676687528224, articleId=1243879676406509853, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Analysis of load reduction performance of polyurethane buffer devices for projectiles entering water at high speed based on ALE method, columnId=1242129251223274417, journalTitle=Journal of Ship Mechanics, columnName=Structural Mechanics, runingTitle=null, highlight=null, articleAbstract=
A rigid polyurethane foam (RPUF) buffer was designed to reduce the load of a projectile during high-speed water entry. Based on the Hopkinson compression bar technique, the density and strain rate effects of RPUF under impact loading were obtained, and its macroscopic constitutive model was established. Based on the Arbitrary Lagrangian-Eulerian (ALE), the numerical simulation model of the projectile during high-speed water entry was established. The numerical simulation of the projectile during high-speed water entry with different densities of RPUF was carried out. The dynamic failure process and motion parameters of the buffer during the water entry were obtained, and the influence law of the density and thickness of RPUF on the load reduction characteristics was analyzed. It can be found that the strain rate effect of RPUF is not obvious, but the density effect is obvious, and that, as the density and thickness of RPUF increase, the load reduction performance of RPUF increases.
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针对弹体高速入水过程中的降载问题,设计一种硬质聚氨酯泡沫缓冲器。基于霍普金森压杆实验技术,获取冲击载荷下硬质聚氨酯泡沫密度和应变率效应,构建其宏观本构模型。采用拉格朗日-欧拉流固耦合方法(ALE),建立弹体入水冲击数值仿真模型,验证所建本构关系及ALE方法的合理性,对加装缓冲器的弹体高速入水问题进行数值仿真计算,获得入水过程中硬质聚氨酯泡沫的动态破坏过程及弹体运动参数,从而分析硬质聚氨酯泡沫密度、厚度对降载特性影响规律,讨论不同入水速度下硬质聚氨酯泡沫参数的设计方法。研究结果表明:硬质聚氨酯泡沫动态力学性能应变率效应不明显,但密度效应明显,缓冲降载性能随硬质聚氨酯泡沫密度和厚度的增大而升高。
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, authorsList=肖有才, 邢旭阳, 杨佩琮, 张宏, 熊言义, 徐忠四, 赵志颖, 孙毅)}, authors=[Author(id=1243879681645195702, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=xiaoyoucai@nuc.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1243879681750053306, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, authorId=1243879681645195702, language=EN, stringName=You-cai XIAO, firstName=You-cai, middleName=null, lastName=XIAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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肖有才(1988-),男,博士,副教授,通讯作者,E-mail:xiaoyoucai@nuc.edu.cn。
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肖有才(1988-),男,博士,副教授,通讯作者,E-mail:xiaoyoucai@nuc.edu.cn。
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1.中北大学 机电工程学院,太原 030051)])]), Author(id=1243879682555359718, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1243879682656023021, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, authorId=1243879682555359718, language=EN, stringName=Hong ZHANG, firstName=Hong, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.No. 713 Research Institute, CSSC, Zhengzhou 450000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1243879682756686325, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, authorId=1243879682555359718, language=CN, stringName=张宏, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.中国船舶集团有限公司第七一三研究所,郑州 450000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1243879681267708319, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, xref=2., ext=[AuthorCompanyExt(id=1243879681276096928, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, companyId=1243879681267708319, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.No. 713 Research Institute, CSSC, Zhengzhou 450000, China), AuthorCompanyExt(id=1243879681284485537, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, companyId=1243879681267708319, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1243879683339694610, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, authorId=1243879683142562315, language=CN, stringName=徐忠四, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.Beijing Institute of Glass Steel Composites Co., Ltd., Beijing 102101, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1243879683633295906, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, authorId=1243879683427774998, language=CN, stringName=赵志颖, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.北京玻钢院复合材料有限公司,北京 102101, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1243879681368371621, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, xref=3., ext=[AuthorCompanyExt(id=1243879681372565925, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, companyId=1243879681368371621, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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175: 16-24., articleTitle=Experimental investigation on trajectory stability of high-speed water entry projectiles, refAbstract=null)], funds=[Fund(id=1243879689404658484, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, awardId=11802273; 12372368, language=CN, fundingSource=国家自然科学基金资助项目(11802273; 12372368), fundOrder=null, country=null), Fund(id=1243879689484350265, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, awardId=202303021211142, language=CN, fundingSource=山西省面上科学基金资助项目(202303021211142), fundOrder=null, country=null), Fund(id=1243879689589207869, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, awardId=JCKY2XXXXX7B0XX, language=CN, fundingSource=国防科工局基础科研项目(JCKY2XXXXX7B0XX), fundOrder=null, country=null), Fund(id=1243879689689871170, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, awardId=202000125, language=CN, fundingSource=北京玻钢院复合材料有限公司青年创新基金资助项目(202000125), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1243879681162850713, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, xref=1., ext=[AuthorCompanyExt(id=1243879681171239322, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, companyId=1243879681162850713, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4.哈尔滨工业大学 航天学院,哈尔滨 150001)])], figs=[ArticleFig(id=1243879685071942249, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.1, caption=
SHPB experimental device, figureFileSmall=g8Gwtjjsv++yDe1FOSBJHA==, figureFileBig=mfYJyIv1Z/nRkFASnXuzQw==, tableContent=null), ArticleFig(id=1243879685189382766, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图1, caption=
分离式Hopkinson压杆, figureFileSmall=g8Gwtjjsv++yDe1FOSBJHA==, figureFileBig=mfYJyIv1Z/nRkFASnXuzQw==, tableContent=null), ArticleFig(id=1243879685424263802, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.2, caption=
Stress history curves of the front and back surfaces of the specimen., figureFileSmall=ykcRsOVAKlXmgs1cs9ry5Q==, figureFileBig=P0aEvZM+NdsqA8nlxqhIDg==, tableContent=null), ArticleFig(id=1243879685520732801, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图2, caption=
试件前后端应力历程曲线, figureFileSmall=ykcRsOVAKlXmgs1cs9ry5Q==, figureFileBig=P0aEvZM+NdsqA8nlxqhIDg==, tableContent=null), ArticleFig(id=1243879685633979014, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.3, caption=
Typical RPUF waveforms in the SHPB experiment, figureFileSmall=vrxrwngpTNdXpL8WdYAsYA==, figureFileBig=i5ETnRnkv3ZSSw/XAQ0hhg==, tableContent=null), ArticleFig(id=1243879685764002443, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图3, caption=
SHPB实验中的典型RPUF试件波形, figureFileSmall=vrxrwngpTNdXpL8WdYAsYA==, figureFileBig=i5ETnRnkv3ZSSw/XAQ0hhg==, tableContent=null), ArticleFig(id=1243879685868860052, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.4, caption=
Dynamic compression curves of RPUF with different densities at different strain rates, figureFileSmall=WFfHSrDXCQIKXizkzyO8NA==, figureFileBig=rpgkfrX2QaYUGdHUr0c6AQ==, tableContent=null), ArticleFig(id=1243879685948551829, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图4, caption=
不同密度RPUF在不同应变率下动态压缩曲线, figureFileSmall=WFfHSrDXCQIKXizkzyO8NA==, figureFileBig=rpgkfrX2QaYUGdHUr0c6AQ==, tableContent=null), ArticleFig(id=1243879686057603737, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.5, caption=
Density and platform stress related to absorption capacity, figureFileSmall=CfN9w94GIw63DN06mbbqEA==, figureFileBig=OhL9d7jGD3SPfSycSN0X3g==, tableContent=null), ArticleFig(id=1243879686166655649, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图5, caption=
RPUF密度与平台应力和能量吸收之间关系, figureFileSmall=CfN9w94GIw63DN06mbbqEA==, figureFileBig=OhL9d7jGD3SPfSycSN0X3g==, tableContent=null), ArticleFig(id=1243879686258930342, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.6, caption=
Schematic diagram of projectile body model, figureFileSmall=18OoTNGQt5si1VH29lJHMg==, figureFileBig=04x+KtdaG4tNUJ0pAhGrnw==, tableContent=null), ArticleFig(id=1243879686347010729, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图6, caption=
缓冲器设计模型示意图, figureFileSmall=18OoTNGQt5si1VH29lJHMg==, figureFileBig=04x+KtdaG4tNUJ0pAhGrnw==, tableContent=null), ArticleFig(id=1243879686414119599, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.7, caption=
Computational grids for projectile and buffer, figureFileSmall=xO1N96bK2EKc/sJ4s3eZSQ==, figureFileBig=lSbsdK/wXK65j5YqTebuuw==, tableContent=null), ArticleFig(id=1243879686539948720, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图7, caption=
弹体与缓冲器组件网格划分, figureFileSmall=xO1N96bK2EKc/sJ4s3eZSQ==, figureFileBig=lSbsdK/wXK65j5YqTebuuw==, tableContent=null), ArticleFig(id=1243879686632223415, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.8, caption=
Comparison of experimental and simulation stress-strain curve of RPUF under 2500 s-1, figureFileSmall=H5L2eenfR5E7z9ipMYGYpg==, figureFileBig=9XP5j+KVCyaPiIwErNU8Mg==, tableContent=null), ArticleFig(id=1243879686745469623, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图8, caption=
不同密度RPUF在2500 s-1应变率下应力应变曲线实验与仿真对照图, figureFileSmall=H5L2eenfR5E7z9ipMYGYpg==, figureFileBig=9XP5j+KVCyaPiIwErNU8Mg==, tableContent=null), ArticleFig(id=1243879686862910141, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.9, caption=
Validation of the numerical calculation model, figureFileSmall=5icvyiRrpvXTrSVeeMbKNg==, figureFileBig=nsfVxMwtWSKL4ZBRY/zZdw==, tableContent=null), ArticleFig(id=1243879687009710785, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图9, caption=
ALE方法数值计算模型验证, figureFileSmall=5icvyiRrpvXTrSVeeMbKNg==, figureFileBig=nsfVxMwtWSKL4ZBRY/zZdw==, tableContent=null), ArticleFig(id=1243879687097791173, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.10, caption=
Comparison of motion parameters between numerical simulation and experimental results, figureFileSmall=NT/ioMTwnSONc5fl56LN1A==, figureFileBig=9PWS1omcd+QLiRFa2RzesA==, tableContent=null), ArticleFig(id=1243879687185871562, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图10, caption=
运动参数数值模拟结果和实验结果对比, figureFileSmall=NT/ioMTwnSONc5fl56LN1A==, figureFileBig=9PWS1omcd+QLiRFa2RzesA==, tableContent=null), ArticleFig(id=1243879687278146252, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.11, caption=
Stress cloud diagram of buffer entering water with 150 m/s, figureFileSmall=f+oqrDOmaizrbN1SHJakOw==, figureFileBig=tUH08Dxq6yfPRyVrbDJnfQ==, tableContent=null), ArticleFig(id=1243879687366226642, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图11, caption=
弹体入水速度为150 m/s下缓冲器和RPUF应力云图, figureFileSmall=f+oqrDOmaizrbN1SHJakOw==, figureFileBig=tUH08Dxq6yfPRyVrbDJnfQ==, tableContent=null), ArticleFig(id=1243879687441724118, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.12, caption=
Stress cloud diagram and destroyed process of buffer entering water with 150 m/s, figureFileSmall=FAO8tUA8eoE8B7Yng49h6w==, figureFileBig=Jk6B/wb87AgLLJWIa4qqzw==, tableContent=null), ArticleFig(id=1243879687542387421, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图12, caption=
弹体入水速度150 m/s下头罩和RPUF应力云图及破坏过程, figureFileSmall=FAO8tUA8eoE8B7Yng49h6w==, figureFileBig=Jk6B/wb87AgLLJWIa4qqzw==, tableContent=null), ArticleFig(id=1243879687630467808, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.13, caption=
Water entry velocity curves of projectile with different densities and thicknesses of RPUF, figureFileSmall=dldbevDlNNiy80XpEEHSWg==, figureFileBig=HP9OK+2jDgX/pBtLX4fcJg==, tableContent=null), ArticleFig(id=1243879687701770982, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图13, caption=
RPUF不同密度和厚度下弹体入水速度历程曲线, figureFileSmall=dldbevDlNNiy80XpEEHSWg==, figureFileBig=HP9OK+2jDgX/pBtLX4fcJg==, tableContent=null), ArticleFig(id=1243879687798239978, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.14, caption=
Acceleration curves of projectile entering water with different densities and thicknesses of RPUF, figureFileSmall=qPEgLV8Sr9O/qHJThRtWiw==, figureFileBig=fd1pQo+x80QWZUVThADWPw==, tableContent=null), ArticleFig(id=1243879687903097582, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图14, caption=
带不同厚度、密度RPUF缓冲器时弹体入水加速度曲线, figureFileSmall=qPEgLV8Sr9O/qHJThRtWiw==, figureFileBig=fd1pQo+x80QWZUVThADWPw==, tableContent=null), ArticleFig(id=1243879687995372274, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Fig.15, caption=
Effect of density and thickness of RPUF on acceleration of projectile body at different velocities, figureFileSmall=2QAGyWNyV4e48uHzi1zRng==, figureFileBig=9PXqKpJpJzz/6qAsu1cEiA==, tableContent=null), ArticleFig(id=1243879688087646967, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=图15, caption=
不同速度下RPUF密度和厚度对弹体加速度影响, figureFileSmall=2QAGyWNyV4e48uHzi1zRng==, figureFileBig=9PXqKpJpJzz/6qAsu1cEiA==, tableContent=null), ArticleFig(id=1243879688192504570, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Tab.1, caption=
Parameters for water state equation
, figureFileSmall=null, figureFileBig=null, tableContent=
| c/(m·s-1) | S1 | S2 | S3 | γ | EW0 | VW0 |
|---|
| 1647 | 1.921 | -0.096 | 0 | 0.35 | 0 | 0 |
), ArticleFig(id=1243879688284779263, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=表1, caption=
水状态方程参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| c/(m·s-1) | S1 | S2 | S3 | γ | EW0 | VW0 |
|---|
| 1647 | 1.921 | -0.096 | 0 | 0.35 | 0 | 0 |
), ArticleFig(id=1243879688389636870, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Tab.2, caption=
Size of buffer structure
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | L1/mm | L2/mm | D1/mm | D2/mm | D3/mm | K1×10-3/mm-1 |
|---|
| 数值 | 300.0 | 145.0 | 54.0 | 265.0 | 4.0 | 1.64 |
), ArticleFig(id=1243879688494494472, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=表2, caption=
缓冲器结构几何尺寸
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | L1/mm | L2/mm | D1/mm | D2/mm | D3/mm | K1×10-3/mm-1 |
|---|
| 数值 | 300.0 | 145.0 | 54.0 | 265.0 | 4.0 | 1.64 |
), ArticleFig(id=1243879688586769162, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Tab.3, caption=
Material parameters of buffer housing
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(g·cm-3) | 杨氏模量/MPa | 泊松比 | 屈服应力/MPa | 切线模量/MPa | 失效应变 |
|---|
| 1.647 | 8500 | 0.33 | 45.0 | 9.0 | 0.2 |
), ArticleFig(id=1243879688695821074, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=表3, caption=
缓冲器复合材料罩壳的材料参数[24]
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(g·cm-3) | 杨氏模量/MPa | 泊松比 | 屈服应力/MPa | 切线模量/MPa | 失效应变 |
|---|
| 1.647 | 8500 | 0.33 | 45.0 | 9.0 | 0.2 |
), ArticleFig(id=1243879688788095765, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Tab.4, caption=
Material parameters of RPUF
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| 密度/(g·cm-3) | 杨氏模量/MPa | 泊松比 | 应力-应变曲线 | 屈服应力/MPa |
|---|
| 0.2 | 91 | 0.01 | 图4(a) | 3 |
| 0.3 | 128 | 0.01 | 图4(b) | 11 |
| 0.4 | 386 | 0.01 | 图4(c) | 16 |
), ArticleFig(id=1243879688888759067, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=表4, caption=
RPUF的力学性能参数
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| 密度/(g·cm-3) | 杨氏模量/MPa | 泊松比 | 应力-应变曲线 | 屈服应力/MPa |
|---|
| 0.2 | 91 | 0.01 | 图4(a) | 3 |
| 0.3 | 128 | 0.01 | 图4(b) | 11 |
| 0.4 | 386 | 0.01 | 图4(c) | 16 |
), ArticleFig(id=1243879689010393890, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Tab.5, caption=
Projectile peak acceleration reduction with different densities and thicknesses of RPUF
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| 密度/(g·cm-3) | 物理参数 | 厚度/mm |
|---|
| 262 | 230 | 196 | 164 | 114 |
|---|
| 0.2 | 加速度峰值/(m·s-2) | 4130 | 4378 | 5162 | 6773 | 8714 |
| 加速度脉宽/ms | 9.6 | 8.7 | 8.5 | 8.3 | 8.1 |
| 加速度峰值减少量 | 90.0% | 89.4% | 87.5% | 83.6% | 78.9% |
| 0.3 | 加速度峰值/(m·s-2) | 3427 | 3923 | 4543 | 5616 | 7434 |
| 加速度脉宽/ms | 8.8 | 8.4 | 8.2 | 8.1 | 7.9 |
| 加速度峰值减少量 | 91.7% | 90.5% | 89.0% | 86.4% | 82% |
| 0.4 | 加速度峰值/(m·s-2) | 2354 | 2767 | 3304 | 4708 | 6484 |
| 加速度脉宽/ms | 8.8 | 8.1 | 8.0 | 7.9 | 7.6 |
| 加速度峰值减少量 | 94.3% | 93.3% | 92% | 88.6% | 84.3% |
), ArticleFig(id=1243879689090085667, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=表5, caption=
不同密度、厚度RPUF对弹体入水的加速度峰值减少量
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| 密度/(g·cm-3) | 物理参数 | 厚度/mm |
|---|
| 262 | 230 | 196 | 164 | 114 |
|---|
| 0.2 | 加速度峰值/(m·s-2) | 4130 | 4378 | 5162 | 6773 | 8714 |
| 加速度脉宽/ms | 9.6 | 8.7 | 8.5 | 8.3 | 8.1 |
| 加速度峰值减少量 | 90.0% | 89.4% | 87.5% | 83.6% | 78.9% |
| 0.3 | 加速度峰值/(m·s-2) | 3427 | 3923 | 4543 | 5616 | 7434 |
| 加速度脉宽/ms | 8.8 | 8.4 | 8.2 | 8.1 | 7.9 |
| 加速度峰值减少量 | 91.7% | 90.5% | 89.0% | 86.4% | 82% |
| 0.4 | 加速度峰值/(m·s-2) | 2354 | 2767 | 3304 | 4708 | 6484 |
| 加速度脉宽/ms | 8.8 | 8.1 | 8.0 | 7.9 | 7.6 |
| 加速度峰值减少量 | 94.3% | 93.3% | 92% | 88.6% | 84.3% |
), ArticleFig(id=1243879689173971752, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=EN, label=Tab.6, caption=
Effects of density and thickness of RPUF on projectile peak acceleration reduction
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| 密度/(g·cm-3) | 厚度/mm | 速度/(m·s-1) |
|---|
| 100 | 150 | 200 |
|---|
| 0.2 | 164 | 89.5% | 83.6% | 76% |
| 262 | 94.5% | 90% | 85.3% |
| 0.3 | 164 | 91.2% | 86.4% | 80.7% |
| 262 | 95.8% | 91.7% | 88.6% |
| 0.4 | 164 | 91% | 88.6% | 84.1% |
| 262 | 97% | 94.3% | 90.9% |
), ArticleFig(id=1243879689287217964, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243879676406509853, language=CN, label=表6, caption=
RPUF密度和厚度对弹体加速度峰值减少量的影响
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| 密度/(g·cm-3) | 厚度/mm | 速度/(m·s-1) |
|---|
| 100 | 150 | 200 |
|---|
| 0.2 | 164 | 89.5% | 83.6% | 76% |
| 262 | 94.5% | 90% | 85.3% |
| 0.3 | 164 | 91.2% | 86.4% | 80.7% |
| 262 | 95.8% | 91.7% | 88.6% |
| 0.4 | 164 | 91% | 88.6% | 84.1% |
| 262 | 97% | 94.3% | 90.9% |
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