Article(id=1241833158073712724, tenantId=1146029695717560320, journalId=1241755870837649424, issueId=1241833154382725178, articleNumber=null, orderNo=null, doi=10.19636/j.cnki.cjsm42-1250/o3.2025.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1750953600000, receivedDateStr=2025-06-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774005697029, onlineDateStr=2026-03-20, pubDate=1756224000000, pubDateStr=2025-08-27, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774005697029, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774005697029, creator=13701087609, updateTime=1774005697029, updator=13701087609, issue=Issue{id=1241833154382725178, tenantId=1146029695717560320, journalId=1241755870837649424, year='2025', volume='46', issue='4', pageStart='437', pageEnd='570', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774005696148, creator=13701087609, updateTime=1774005738977, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241833334083490628, tenantId=1146029695717560320, journalId=1241755870837649424, issueId=1241833154382725178, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241833334087684933, tenantId=1146029695717560320, journalId=1241755870837649424, issueId=1241833154382725178, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=546, endPage=559, ext={EN=ArticleExt(id=1241833158371508314, articleId=1241833158073712724, tenantId=1146029695717560320, journalId=1241755870837649424, language=EN, title=Derivation and Application of the Geometric Stiffness Matrix for Beam Elements Based on the Rigid Body Rule, columnId=1241831201674171363, journalTitle=Chinese Journal of Solid Mechanics, columnName=Research Papers, runingTitle=null, highlight=null, articleAbstract=
The load-bearing capacity of slender structural systems, particularly those comprising assemblages of beam elements, is critically governed by their geometric stiffness properties. Conventional methodologies for deriving the geometric stiffness matrix of beam elements are typically rooted in stability functions or variational energy principles and entail mathematically intricate formulations that frequently obscure physical interpretations, especially concerning the treatment of higher-order displacement terms. In marked contrast to these established approaches, the present study introduces a physically insightful framework by first investigating the induced moment matrix. This fundamental mechanical attribute rigorously preserves nodal moment equilibrium during finite three-dimensional rotations. Its formulation is established through the incremental virtual work principle, derived from consistent linearization of three-dimensional solid beam kinematics integrated with exact spatial rotational transformations. A pivotal theoretical finding demonstrates that while the induced moment matrix inherently exhibits asymmetry when examined at the individual element level, this asymmetry vanishes upon assembly into the global structural system, resulting in a symmetric structural-level geometric stiffness matrix. Building upon this foundation, a three-dimensional geometric stiffness matrix incorporating undetermined coefficients is systematically constructed by rigorously enforcing displacement compatibility conditions across the element. Subsequently, by exploiting the proven symmetry of the assembled global geometric stiffness matrix and strictly imposing the rigid body rule, which necessitates zero straining energy for arbitrary rigid displacements, a concise and fully explicit analytical expression for the three-dimensional beam element geometric stiffness matrix is derived. This expression is further simplified to yield its corresponding two-dimensional counterpart for planar analyses. Comprehensive numerical validations encompass eigenvalue buckling analyses of axially compressed prismatic members and geometrically nonlinear analyses of diverse structural configurations: cantilever beams, arches, spatial frames, and curved beams. These extensive simulations consistently confirm that the proposed geometric stiffness matrix achieves exceptional computational accuracy and numerical efficiency in predicting both critical buckling loads and complex post-buckling equilibrium paths. This work establishes a novel, mechanically transparent, and mathematically streamlined paradigm for deriving geometric stiffness matrices, offering a unifying perspective readily extensible beyond beam elements to potentially encompass plate and shell finite elements in future developments.
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杆系结构的承载性能与其几何刚度密切相关,通常情况下梁单元几何刚度通过稳定函数或能量原理推导得出,推导过程较为复杂,并且对于位移高阶项的处理缺乏物理观. 研究首先基于三维实体梁线性化的增量虚功方程和空间力矩转动特性,分析得到梁单元节点保持平衡的关键特征-诱发矩矩阵,并证明了单元层面非对称的诱发矩矩阵组装到结构层面后将恢复对称性. 然后根据诱发矩矩阵和单元位移特征构造了含待定系数的三维梁单元几何刚度矩阵,并利用几何刚度矩阵的对称性和刚体准则推导出了简洁形式的三维梁单元几何刚度矩阵的显示表达,同时简化得到二维梁单元几何刚度矩阵. 通过对典型案例进行线性屈曲分析和非线性分析,结果表明所推导的几何刚度矩阵可以很好的用于梁类型结构的屈曲和后屈曲分析,并且具有较好的计算精度和较高的计算效率. 此推导梁单元几何刚度矩阵的方法物理意义清晰,推导过程简单,是推导单元几何刚度的一种新思路.
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58(1): 79-116., articleTitle=A three-dimensional finite-strain rod model. Part II: Computational aspects, refAbstract=null)], funds=[Fund(id=1241833186179744547, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, awardId=52078082, language=CN, fundingSource=国家自然科学基金项目(52078082), fundOrder=null, country=null), Fund(id=1241833186263630629, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, awardId=NJJH202316, language=CN, fundingSource=内江市基础研究与应用基础研究项目(NJJH202316), fundOrder=null, country=null), Fund(id=1241833186334933798, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, awardId=2023ZD03, language=CN, fundingSource=内江师范学院科研资助项目(2023ZD03), fundOrder=null, country=null), Fund(id=1241833186423014184, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, awardId=X2024077, language=CN, fundingSource=内江师范学院大学生创新创业训练计划资助项目(X2024077), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241833177501729406, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, xref=
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1School of Architecture and Engineering, Neijiang Normal University, Neijiang, 641100), AuthorCompanyExt(id=1241833177522700928, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, companyId=1241833177501729406, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1内江师范学院建筑工程学院,内江,641100)]), AuthorCompany(id=1241833177581421186, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, xref=
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2School of Civil Engineering, Chongqing University, Chongqing, 400045), AuthorCompanyExt(id=1241833177594004100, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, companyId=1241833177581421186, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2重庆大学土木工程学院,重庆,400045)])], figs=[ArticleFig(id=1241833181347906255, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.1, caption=
Three-dimensional beam element, figureFileSmall=CIF+MGx0h2pYA1z2JG0gyQ==, figureFileBig=+bOi2x2GGFDB+kZf4Uo3iw==, tableContent=null), ArticleFig(id=1241833181448569556, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图1, caption=
三维梁单元, figureFileSmall=CIF+MGx0h2pYA1z2JG0gyQ==, figureFileBig=+bOi2x2GGFDB+kZf4Uo3iw==, tableContent=null), ArticleFig(id=1241833181662479063, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.2, caption=
Structural joint B with two connected members, figureFileSmall=9qyHnoHIfizNOvYB2CVeGg==, figureFileBig=hU9R78gc+5AnHeLJDPs+0A==, tableContent=null), ArticleFig(id=1241833181725393626, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图2, caption=
连接两个单元的结构节点B, figureFileSmall=9qyHnoHIfizNOvYB2CVeGg==, figureFileBig=hU9R78gc+5AnHeLJDPs+0A==, tableContent=null), ArticleFig(id=1241833181826056924, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.3, caption=
Axial compression column under different supporting conditions, figureFileSmall=79g2cpSFbKQ/QLqjXNMr9g==, figureFileBig=9nEbVQiVCv5xlqoOehOigg==, tableContent=null), ArticleFig(id=1241833181901554399, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图3, caption=
不同支承条件下轴心受压柱, figureFileSmall=79g2cpSFbKQ/QLqjXNMr9g==, figureFileBig=9nEbVQiVCv5xlqoOehOigg==, tableContent=null), ArticleFig(id=1241833182006411999, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.4, caption=
A cantilever subjected to a transverse force, figureFileSmall=I//bXTLMDKvPhUs+TK0hdw==, figureFileBig=/qrlMBpbm3sp14AOwwmH9w==, tableContent=null), ArticleFig(id=1241833182098686690, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图4, caption=
承受横向荷载的悬臂梁, figureFileSmall=I//bXTLMDKvPhUs+TK0hdw==, figureFileBig=/qrlMBpbm3sp14AOwwmH9w==, tableContent=null), ArticleFig(id=1241833182178378468, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.5, caption=
Nonlinear path of cantilever beam subjected to transverse load, figureFileSmall=PXrh25MaIXq1T/Z1sZe+7g==, figureFileBig=F45kqXAk4IKawryqEIAWrw==, tableContent=null), ArticleFig(id=1241833182258070247, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图5, caption=
承受横向荷载的悬臂梁非线性路径, figureFileSmall=PXrh25MaIXq1T/Z1sZe+7g==, figureFileBig=F45kqXAk4IKawryqEIAWrw==, tableContent=null), ArticleFig(id=1241833182346150632, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.6, caption=
Clamped-hinged arch subjected to a concentrated load, figureFileSmall=on3wQGxJCIadJ2YcUe+rcg==, figureFileBig=fIhXjb15zwGLeUbhR3Obwg==, tableContent=null), ArticleFig(id=1241833182425842411, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图6, caption=
承受集中荷载的固接-铰接拱, figureFileSmall=on3wQGxJCIadJ2YcUe+rcg==, figureFileBig=fIhXjb15zwGLeUbhR3Obwg==, tableContent=null), ArticleFig(id=1241833182518117102, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.7, caption=
Load-deflection curves of clamped-hinged arch, figureFileSmall=ZTYKAd2uixbOhpdSUoMFiA==, figureFileBig=qISc6gDkRl1MVf+sUjgJIg==, tableContent=null), ArticleFig(id=1241833184032260849, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图7, caption=
固接-铰接拱荷载位移曲线, figureFileSmall=ZTYKAd2uixbOhpdSUoMFiA==, figureFileBig=qISc6gDkRl1MVf+sUjgJIg==, tableContent=null), ArticleFig(id=1241833184116146930, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.8, caption=
Right-angle frame subjected to symmetric moments, figureFileSmall=vqGSeQFGKnRiBMcjd1kzHg==, figureFileBig=RLeh4dedDPpWB0OZjqhxkg==, tableContent=null), ArticleFig(id=1241833184200033012, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图8, caption=
承受对称弯矩的直角框架, figureFileSmall=vqGSeQFGKnRiBMcjd1kzHg==, figureFileBig=RLeh4dedDPpWB0OZjqhxkg==, tableContent=null), ArticleFig(id=1241833184304890614, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.9, caption=
Load-deflection curves of right-angle frame, figureFileSmall=gUOr27w63mpVtvZBaMLi5g==, figureFileBig=Jbofk6AHwKR2auIdhQeojg==, tableContent=null), ArticleFig(id=1241833184476857081, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图9, caption=
直角框架荷载-位移曲线, figureFileSmall=gUOr27w63mpVtvZBaMLi5g==, figureFileBig=Jbofk6AHwKR2auIdhQeojg==, tableContent=null), ArticleFig(id=1241833184564937467, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.10, caption=
Three-bar space beam structure, figureFileSmall=KaIrocHCGWJ2yJ2u3HTYJw==, figureFileBig=yI+mgujI847EeoMDIJb2xw==, tableContent=null), ArticleFig(id=1241833184632046333, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图10, caption=
三杆空间梁结构, figureFileSmall=KaIrocHCGWJ2yJ2u3HTYJw==, figureFileBig=yI+mgujI847EeoMDIJb2xw==, tableContent=null), ArticleFig(id=1241833184690766591, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.11, caption=
Load-displacement curves of tip d, figureFileSmall=qu1WPeUAsma77sAv8F/wHQ==, figureFileBig=MMCU2sB7OxNpgr0/Dkqnmw==, tableContent=null), ArticleFig(id=1241833184762069761, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图11, caption=
顶点d荷载-位移曲线, figureFileSmall=qu1WPeUAsma77sAv8F/wHQ==, figureFileBig=MMCU2sB7OxNpgr0/Dkqnmw==, tableContent=null), ArticleFig(id=1241833184858538755, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.12, caption=
45° cantilever curved beam subjected to a tip force, figureFileSmall=rR+Q8zSTv1odGIkH6LlT2Q==, figureFileBig=6UVq5YA/8MAqc/5B3VafCA==, tableContent=null), ArticleFig(id=1241833184959202053, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图12, caption=
45°悬臂曲梁承受顶点荷载, figureFileSmall=rR+Q8zSTv1odGIkH6LlT2Q==, figureFileBig=6UVq5YA/8MAqc/5B3VafCA==, tableContent=null), ArticleFig(id=1241833185038893831, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Fig.13, caption=
Load-displacement curves of the tip, figureFileSmall=3ywqamWC1tvbZZsYf2BEXg==, figureFileBig=N5qwM2hi7V+G+9mebpi4dg==, tableContent=null), ArticleFig(id=1241833185114391305, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=图13, caption=
顶点的荷载-位移曲线, figureFileSmall=3ywqamWC1tvbZZsYf2BEXg==, figureFileBig=N5qwM2hi7V+G+9mebpi4dg==, tableContent=null), ArticleFig(id=1241833185198277387, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Table 1, caption=
Buckling loads of axial compression columns with different support conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 支承情况 | 理论屈曲荷载(N) | 本文 | Yang和Kuo |
|---|
| 曲荷载(N)特征值屈 | 误差 | 特征值屈曲荷载(N) | 误差 |
|---|
| (a) | 两端铰接 | 246.45 | 247.21 | 0.31% | 246.70 | 0.10% |
| (b) | 一端固接,一端铰接 | 502.96 | 506.81 | 0.77% | 504.72 | 0.35% |
| (c) | 一端固接,一端自由 | 61.61 | 61.71 | 0.16% | 61.68 | 0.11% |
| (d) | 两端固接 | 985.80 | 994.95 | 0.93% | 987.01 | 0.12% |
| (e) | 两端铰接,中间铰支承 | 985.80 | 994.95 | 0.93% | 987.01 | 0.12% |
), ArticleFig(id=1241833185298940685, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=表1, caption=
不同支承条件轴心受压柱的屈曲荷载
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 支承情况 | 理论屈曲荷载(N) | 本文 | Yang和Kuo |
|---|
| 曲荷载(N)特征值屈 | 误差 | 特征值屈曲荷载(N) | 误差 |
|---|
| (a) | 两端铰接 | 246.45 | 247.21 | 0.31% | 246.70 | 0.10% |
| (b) | 一端固接,一端铰接 | 502.96 | 506.81 | 0.77% | 504.72 | 0.35% |
| (c) | 一端固接,一端自由 | 61.61 | 61.71 | 0.16% | 61.68 | 0.11% |
| (d) | 两端固接 | 985.80 | 994.95 | 0.93% | 987.01 | 0.12% |
| (e) | 两端铰接,中间铰支承 | 985.80 | 994.95 | 0.93% | 987.01 | 0.12% |
), ArticleFig(id=1241833185378632463, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Table 2, caption=
Incremental-iterative calculation data of cantilever beam
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 8545 | 13593 | 4.39 |
| Yang和Kuo | 8545 | 13612 | 4.97 |
), ArticleFig(id=1241833185449935633, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=表2, caption=
悬臂梁增量-迭代计算数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 8545 | 13593 | 4.39 |
| Yang和Kuo | 8545 | 13612 | 4.97 |
), ArticleFig(id=1241833185525433107, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Table 3, caption=
Incremental-iterative calculation data of clamped-hinged arch
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 4282 | 8792 | 2.27 |
| Yang和Kuo | 4287 | 8803 | 2.73 |
), ArticleFig(id=1241833185609319189, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=表3, caption=
固接-铰接拱增量-迭代计算数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 4282 | 8792 | 2.27 |
| Yang和Kuo | 4287 | 8803 | 2.73 |
), ArticleFig(id=1241833185680622359, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Table 4, caption=
Incremental-iterative calculation data of right-angle frame
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 21329 | 43020 | 10.62 |
| Yang和Kuo | 21445 | 43327 | 11.73 |
), ArticleFig(id=1241833185756119833, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=表4, caption=
直角框架增量-迭代计算数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 21329 | 43020 | 10.62 |
| Yang和Kuo | 21445 | 43327 | 11.73 |
), ArticleFig(id=1241833185823228699, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Table 5, caption=
Incremental-iterative calculation data of space beam structure
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 516 | 1035 | 1.22 |
| Yang和Kuo | 518 | 1049 | 1.36 |
), ArticleFig(id=1241833185894531869, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=表5, caption=
空间梁结构增量-迭代计算数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 516 | 1035 | 1.22 |
| Yang和Kuo | 518 | 1049 | 1.36 |
), ArticleFig(id=1241833185978417951, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=EN, label=Table 6, caption=
Incremental-iterative calculation data of cantilever curved beam
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 389 | 980 | 0.34 |
| Yang和Kuo | 389 | 1949 | 0.55 |
), ArticleFig(id=1241833186070692641, tenantId=1146029695717560320, journalId=1241755870837649424, articleId=1241833158073712724, language=CN, label=表6, caption=
悬臂曲梁增量-迭代计算数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 增量步数 | 总迭代次数 | 计算时间(s) |
|---|
| 本文 | 389 | 980 | 0.34 |
| Yang和Kuo | 389 | 1949 | 0.55 |
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