Article(id=1149418805002145925, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1149418798794572319, articleNumber=null, orderNo=null, doi=10.19562/j.chinasae.qcgc.2025.05.019, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730131200000, receivedDateStr=2024-10-29, revisedDate=1736352000000, revisedDateStr=2025-01-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1751972398269, onlineDateStr=2025-07-08, pubDate=1748102400000, pubDateStr=2025-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1751972398269, onlineIssueDateStr=2025-07-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1751972398269, creator=13701087609, updateTime=1751972398269, updator=13701087609, issue=Issue{id=1149418798794572319, tenantId=1146029695717560320, journalId=1146120084050784272, year='2025', volume='47', issue='5', pageStart='1', pageEnd='1006', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1751972396792, creator=13701087609, updateTime=1753780688390, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157003323518837255, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1149418798794572319, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157003323518837256, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1149418798794572319, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=992, endPage=1006, ext={EN=ArticleExt(id=1149418805710983314, articleId=1149418805002145925, tenantId=1146029695717560320, journalId=1146120084050784272, language=EN, title=Research on Vehicle Frame Lightweight Based on the IHHO Algorithm, columnId=1149805645261664296, journalTitle=Automotive Engineering, columnName=Papers, runingTitle=null, highlight=
An optimization method incorporating the Improved Harris Hawks Optimization (IHHO) algorithm is proposed for the lightweight research of a truss-type snowplow frame. Firstly,a finite element simulation model of the frame is constructed,and its strength,stiffness,and modal characteristics are quantitatively analyzed under various working conditions to determine its strength performance,stiffness performance,and natural frequencies. Subsequently,the Response Surface Methodology is employed,using maximum deformation and maximum stress as response variables,to optimize the cross-sectional dimensions of the frame beams,yielding three sets of optimal solutions. On this foundation,the IHHO algorithm is proposed by improving the HHO algorithm,and the effectiveness of the optimal solutions is verified using the IHHO algorithm. The optimization results show that the overall mass of the frame is reduced by 33.6%,with the maximum deformation decreased by 6.33%,the maximum stress increased by 3.01%,and the first-order modal frequency decreased by 19.48%,effectively avoiding the resonance range. This study provides an efficient and feasible optimization strategy for the lightweight design of truss-type frames. The method demonstrates significant advantages in model construction and obtaining accurate estimation results,offering theoretical references for engineering application in related fields.
, articleAbstract=
An optimization method incorporating the Improved Harris Hawks Optimization (IHHO) algorithm is proposed for the lightweight research of a trusstype snowplow frame. Firstly, a finite element simulation model of the frame is constructed, and its strength, stiffness, and modal characteristics are quantitatively analyzed under various working conditions to determine its strength performance, stiffness performance, and natural frequencies. Subsequently, the Response Surface Methodology is employed, using maximum deformation and maximum stress as response variables, to optimize the crosssectional dimensions of the frame beams, yielding three sets of optimal solutions. On this foundation, the IHHO algorithm is proposed by improving the HHO algorithm, and the effectiveness of the optimal solutions is verified using the IHHO algorithm. The optimization results show that the overall mass of the frame is reduced by 33.6%, with the maximum deformation decreased by 6.33%, the maximum stress increased by 3.01%, and the firstorder modal frequency decreased by 19.48%, effectively avoiding the resonance range. This study provides an efficient and feasible optimization strategy for the lightweight design of trusstype frames. The method demonstrates significant advantages in model construction and obtaining accurate estimation results, offering theoretical references for engineering application in related fields.
, correspAuthors=Qingyuan Su, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Chunlong Ma, Wenjun Xia, Shengguo Li, Yanyu Guo, Qingyuan Su), CN=ArticleExt(id=1149418826330182305, articleId=1149418805002145925, tenantId=1146029695717560320, journalId=1146120084050784272, language=CN, title=基于联合IHHO算法的车架轻量化研究
*, columnId=1149805645391687721, journalTitle=汽车工程, columnName=研究论文, runingTitle=null, highlight=
提出一种联合IHHO算法的优化方法,对桁架式清雪车车架进行轻量化研究。首先,构建了车架的有限元仿真模型,在多种工况下对其强度、刚度、模态进行定量分析,得其强度性能、刚度性能及固有频率。其次,利用响应面法以最大变形量和最大应力为响应值,优化车架各梁截面尺寸,得到3组最优解。在此基础上,对HHO算法进行改进,提出IHHO算法,采用IHHO算法验证最优解的有效性。优化结果表明,车架整体质量减轻33.6%,最大变形量减小6.33%,最大应力增加3.01%,1阶模态频率降低19.48%,有效避开了共振范围。本研究为桁架式车架的轻量化设计提供了一种高效、可行的优化策略,该方法在模型构建和获取准确估算结果方面具有显著优势,为相关领域的工程应用提供理论参考。
, articleAbstract=
提出一种联合IHHO算法的优化方法,对桁架式清雪车车架进行轻量化研究。首先,构建了车架的有限元仿真模型,在多种工况下对其强度、刚度、模态进行定量分析,得其强度性能、刚度性能及固有频率。其次,利用响应面法以最大变形量和最大应力为响应值,优化车架各梁截面尺寸,得到3组最优解。在此基础上,对HHO算法进行改进,提出IHHO算法,采用IHHO算法验证最优解的有效性。优化结果表明,车架整体质量减轻33.6%,最大变形量减小6.33%,最大应力增加3.01%,1阶模态频率降低19.48%,有效避开了共振范围。本研究为桁架式车架的轻量化设计提供了一种高效、可行的优化策略,该方法在模型构建和获取准确估算结果方面具有显著优势,为相关领域的工程应用提供理论参考。
, correspAuthors=苏清源, authorNote=null, correspAuthorsNote=
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1 School of Automobile and Traffic Engineering,Heilongjiang Institute of Technology,Harbin 150000
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疲劳寿命分析步骤, figureFileSmall=uOsRyQEl+A6xMeArpT5zMg==, figureFileBig=jpHi02ZFySQkvtOvW0kXkw==, tableContent=null), ArticleFig(id=1170297360203657791, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=EN, label=null, caption=null, figureFileSmall=BFFXoH0fGGxHN0Fm9mh+hQ==, figureFileBig=099fkoIQaGknPE3IjZnoag==, tableContent=null), ArticleFig(id=1170297360404984384, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=CN, label=图18, caption=
弯曲工况车架疲劳寿命分布云图, figureFileSmall=BFFXoH0fGGxHN0Fm9mh+hQ==, figureFileBig=099fkoIQaGknPE3IjZnoag==, tableContent=null), ArticleFig(id=1170297360497259073, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=EN, label=null, caption=null, figureFileSmall=xSr/+FTpVwblXKd7rCEjyw==, figureFileBig=YIjo2ZmVRv875SNbP3L4mg==, tableContent=null), ArticleFig(id=1170297360593728066, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=CN, label=图19, caption=
扭转工况车架疲劳寿命分布云图, figureFileSmall=xSr/+FTpVwblXKd7rCEjyw==, figureFileBig=YIjo2ZmVRv875SNbP3L4mg==, tableContent=null), ArticleFig(id=1170297360706974275, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | 泊松比 | 弹性模量/MPa | 密度/ (kg·m-3) | 屈服强度/MPa |
| Q235 | 0.3 | 2.1×105 | 7 850 | 235 |
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Q235的材料性能参数
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| 材料名称 | 泊松比 | 弹性模量/MPa | 密度/ (kg·m-3) | 屈服强度/MPa |
| Q235 | 0.3 | 2.1×105 | 7 850 | 235 |
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| 载荷名称 | 载荷/N | 载荷方向 |
| 动力电池 | 2 200 | -Y轴 |
| 增程器 | 1 500 | -Y轴 |
| 电机 | 500 | -Y轴 |
| 扫雪设备 | 800 | -Y轴与-Z轴45°夹角 |
| 破冰设备 | 1 000 | -Y轴 |
| 车身与其它硬件 | 1 800 | -Y轴 |
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载荷参数
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| 载荷名称 | 载荷/N | 载荷方向 |
| 动力电池 | 2 200 | -Y轴 |
| 增程器 | 1 500 | -Y轴 |
| 电机 | 500 | -Y轴 |
| 扫雪设备 | 800 | -Y轴与-Z轴45°夹角 |
| 破冰设备 | 1 000 | -Y轴 |
| 车身与其它硬件 | 1 800 | -Y轴 |
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| 网格尺寸/mm | 网格数量 | 最大应力值/MPa |
| 6 | 62 081 | 77.210 |
| 5.5 | 63 015 | 80.290 |
| 5 | 86 509 | 83.635 |
| 4.5 | 119 715 | 84.114 |
| 4 | 150 185 | 84.959 |
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不同网格尺寸下最大应力值
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| 网格尺寸/mm | 网格数量 | 最大应力值/MPa |
| 6 | 62 081 | 77.210 |
| 5.5 | 63 015 | 80.290 |
| 5 | 86 509 | 83.635 |
| 4.5 | 119 715 | 84.114 |
| 4 | 150 185 | 84.959 |
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| 工况 | 左前悬架 | 右前悬架 | 左后悬架 | 右后悬架 |
| 弯曲工况 | Uy、Uz | Uy、Uz | Uy、Uz | Uy、Uz |
| 扭转工况 | Uy = 2000 N | Ux、Uy、Uz | Ux、Uy、Uz | Ux、Uy、Uz |
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车架弯曲工况和扭转工况下的约束条件
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| 工况 | 左前悬架 | 右前悬架 | 左后悬架 | 右后悬架 |
| 弯曲工况 | Uy、Uz | Uy、Uz | Uy、Uz | Uy、Uz |
| 扭转工况 | Uy = 2000 N | Ux、Uy、Uz | Ux、Uy、Uz | Ux、Uy、Uz |
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| 工况 | 横梁1 | 横梁2 | 横梁3 | 横梁4 | 横梁5 | 横梁6 | 横梁7 | 纵梁1 | 纵梁2 |
| 弯曲工况 | 0.083 | 0.105 | 0.222 | 0.479 | 0.105 | 0.063 | 0.119 | 0.213 | 0.213 |
| 扭转工况 | 0.256 | 0.140 | 0.376 | 0.631 | 0.306 | 0.074 | 0.097 | 0.503 | 0.171 |
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主梁最大变形量
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| 工况 | 横梁1 | 横梁2 | 横梁3 | 横梁4 | 横梁5 | 横梁6 | 横梁7 | 纵梁1 | 纵梁2 |
| 弯曲工况 | 0.083 | 0.105 | 0.222 | 0.479 | 0.105 | 0.063 | 0.119 | 0.213 | 0.213 |
| 扭转工况 | 0.256 | 0.140 | 0.376 | 0.631 | 0.306 | 0.074 | 0.097 | 0.503 | 0.171 |
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| 阶数 | 频率/Hz | 振型 |
| 1 | 33.67 | 绕Z轴扭转 |
| 2 | 45.10 | 绕X轴弯曲 |
| 3 | 95.49 | 绕Z轴扭转、绕Y轴弯曲 |
| 4 | 102.11 | 绕Y轴扭转 |
| 5 | 129.20 | 绕Y轴弯曲 |
| 6 | 139.49 | 绕X轴扭转 |
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车架前6阶模态频率和振型
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| 阶数 | 频率/Hz | 振型 |
| 1 | 33.67 | 绕Z轴扭转 |
| 2 | 45.10 | 绕X轴弯曲 |
| 3 | 95.49 | 绕Z轴扭转、绕Y轴弯曲 |
| 4 | 102.11 | 绕Y轴扭转 |
| 5 | 129.20 | 绕Y轴弯曲 |
| 6 | 139.49 | 绕X轴扭转 |
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| 设计变量 | 初始值/mm | 上限/mm | 下限/mm |
| P1 | 48 | 50 | 40 |
| P2 | 35 | 45 | 30 |
| P3 | 4 | 8 | 1 |
| P4 | 5 | 8 | 1 |
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工字梁截面尺寸初始值及取值范围
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| 设计变量 | 初始值/mm | 上限/mm | 下限/mm |
| P1 | 48 | 50 | 40 |
| P2 | 35 | 45 | 30 |
| P3 | 4 | 8 | 1 |
| P4 | 5 | 8 | 1 |
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| 设计点 | P1/mm | P2/mm | P3/mm | P4/mm | P5/mm | P6/MPa | P7/kg |
| 1 | 45.000 00 | 37.500 00 | 4.500 000 | 4.500 000 | 0.068 153 | 25.927 08 | 2.511 608 |
| 2 | 40.000 00 | 37.500 00 | 4.500 000 | 4.500 000 | 0.073 298 | 26.617 31 | 2.299 658 |
| 3 | 50.000 00 | 37.500 00 | 4.500 000 | 4.500 000 | 0.064 142 | 22.884 94 | 2.723 558 |
| 4 | 45.000 00 | 30.000 00 | 4.500 000 | 4.500 000 | 0.109 536 | 33.127 09 | 2.352 645 |
| 5 | 45.000 00 | 45.000 00 | 4.500 000 | 4.500 000 | 0.047 111 | 21.252 31 | 2.670 570 |
| 6 | 45.000 00 | 37.500 00 | 1.000 000 | 4.500 000 | 0.114 233 | 51.177 94 | 2.041 785 |
| 7 | 45.000 00 | 37.500 00 | 8.000 000 | 4.500 000 | 0.058 947 | 22.239 98 | 2.981 430 |
| 8 | 45.000 00 | 37.500 00 | 4.500 000 | 1.000 000 | 0.251 339 | 110.395 70 | 1.176 323 |
| 9 | 45.000 00 | 37.500 00 | 4.500 000 | 8.000 000 | 0.051 753 | 19.575 74 | 3.846 893 |
| 10 | 41.478 97 | 32.218 46 | 2.035 279 | 2.035 279 | 0.197 688 | 69.763 51 | 1.065 079 |
| 11 | 48.521 03 | 32.218 46 | 2.035 279 | 2.035 279 | 0.186 727 | 65.329 38 | 1.200 092 |
| 12 | 41.478 97 | 42.781 54 | 2.035 279 | 2.035 279 | 0.117 786 | 53.626 58 | 1.166 338 |
| 13 | 48.521 03 | 42.781 54 | 2.035 279 | 2.035 279 | 0.115 807 | 51.325 12 | 1.301 351 |
| 14 | 41.478 97 | 32.218 46 | 6.964 721 | 2.035 279 | 0.140 781 | 55.535 27 | 1.718 607 |
| 15 | 48.521 03 | 32.218 46 | 6.964 721 | 2.035 279 | 0.134 392 | 53.581 65 | 1.853 620 |
| 16 | 41.478 97 | 42.781 54 | 6.964 721 | 2.035 279 | 0.076 214 | 40.636 16 | 2.065 117 |
| 17 | 48.521 03 | 42.781 54 | 6.964 721 | 2.035 279 | 0.076 695 | 40.473 58 | 2.200 130 |
| 18 | 41.478 97 | 32.218 46 | 2.035 279 | 6.964 721 | 0.097 660 | 33.113 56 | 2.896 660 |
| 19 | 48.521 03 | 32.218 46 | 2.035 279 | 6.964 721 | 0.088 816 | 30.660 94 | 3.358 673 |
| 20 | 41.478 97 | 42.781 54 | 2.035 279 | 6.964 721 | 0.057 497 | 23.892 29 | 2.997 920 |
| 21 | 48.521 03 | 42.781 54 | 2.035 279 | 6.964 721 | 0.053 193 | 23.882 78 | 3.459 933 |
| 22 | 41.478 97 | 32.218 46 | 6.964 721 | 6.964 721 | 0.074 817 | 25.168 51 | 3.321 288 |
| 23 | 48.521 03 | 32.218 46 | 6.964 721 | 6.964 721 | 0.066 650 | 21.965 64 | 3.783 302 |
| 24 | 41.478 97 | 42.781 54 | 6.964 721 | 6.964 721 | 0.039 220 | 17.677 10 | 3.667 798 |
| 25 | 48.521 03 | 42.781 54 | 6.964 721 | 6.964 721 | 0.035 449 | 15.562 29 | 4.129 811 |
), ArticleFig(id=1170297362053345874, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=CN, label=表8, caption=
中心复合试验设计点计算数据
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| 设计点 | P1/mm | P2/mm | P3/mm | P4/mm | P5/mm | P6/MPa | P7/kg |
| 1 | 45.000 00 | 37.500 00 | 4.500 000 | 4.500 000 | 0.068 153 | 25.927 08 | 2.511 608 |
| 2 | 40.000 00 | 37.500 00 | 4.500 000 | 4.500 000 | 0.073 298 | 26.617 31 | 2.299 658 |
| 3 | 50.000 00 | 37.500 00 | 4.500 000 | 4.500 000 | 0.064 142 | 22.884 94 | 2.723 558 |
| 4 | 45.000 00 | 30.000 00 | 4.500 000 | 4.500 000 | 0.109 536 | 33.127 09 | 2.352 645 |
| 5 | 45.000 00 | 45.000 00 | 4.500 000 | 4.500 000 | 0.047 111 | 21.252 31 | 2.670 570 |
| 6 | 45.000 00 | 37.500 00 | 1.000 000 | 4.500 000 | 0.114 233 | 51.177 94 | 2.041 785 |
| 7 | 45.000 00 | 37.500 00 | 8.000 000 | 4.500 000 | 0.058 947 | 22.239 98 | 2.981 430 |
| 8 | 45.000 00 | 37.500 00 | 4.500 000 | 1.000 000 | 0.251 339 | 110.395 70 | 1.176 323 |
| 9 | 45.000 00 | 37.500 00 | 4.500 000 | 8.000 000 | 0.051 753 | 19.575 74 | 3.846 893 |
| 10 | 41.478 97 | 32.218 46 | 2.035 279 | 2.035 279 | 0.197 688 | 69.763 51 | 1.065 079 |
| 11 | 48.521 03 | 32.218 46 | 2.035 279 | 2.035 279 | 0.186 727 | 65.329 38 | 1.200 092 |
| 12 | 41.478 97 | 42.781 54 | 2.035 279 | 2.035 279 | 0.117 786 | 53.626 58 | 1.166 338 |
| 13 | 48.521 03 | 42.781 54 | 2.035 279 | 2.035 279 | 0.115 807 | 51.325 12 | 1.301 351 |
| 14 | 41.478 97 | 32.218 46 | 6.964 721 | 2.035 279 | 0.140 781 | 55.535 27 | 1.718 607 |
| 15 | 48.521 03 | 32.218 46 | 6.964 721 | 2.035 279 | 0.134 392 | 53.581 65 | 1.853 620 |
| 16 | 41.478 97 | 42.781 54 | 6.964 721 | 2.035 279 | 0.076 214 | 40.636 16 | 2.065 117 |
| 17 | 48.521 03 | 42.781 54 | 6.964 721 | 2.035 279 | 0.076 695 | 40.473 58 | 2.200 130 |
| 18 | 41.478 97 | 32.218 46 | 2.035 279 | 6.964 721 | 0.097 660 | 33.113 56 | 2.896 660 |
| 19 | 48.521 03 | 32.218 46 | 2.035 279 | 6.964 721 | 0.088 816 | 30.660 94 | 3.358 673 |
| 20 | 41.478 97 | 42.781 54 | 2.035 279 | 6.964 721 | 0.057 497 | 23.892 29 | 2.997 920 |
| 21 | 48.521 03 | 42.781 54 | 2.035 279 | 6.964 721 | 0.053 193 | 23.882 78 | 3.459 933 |
| 22 | 41.478 97 | 32.218 46 | 6.964 721 | 6.964 721 | 0.074 817 | 25.168 51 | 3.321 288 |
| 23 | 48.521 03 | 32.218 46 | 6.964 721 | 6.964 721 | 0.066 650 | 21.965 64 | 3.783 302 |
| 24 | 41.478 97 | 42.781 54 | 6.964 721 | 6.964 721 | 0.039 220 | 17.677 10 | 3.667 798 |
| 25 | 48.521 03 | 42.781 54 | 6.964 721 | 6.964 721 | 0.035 449 | 15.562 29 | 4.129 811 |
), ArticleFig(id=1170297362154009171, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1149418805002145925, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 响应值 | P5 | P6 | P7 |
| 决定系数R2 | 0.977 79 | 0.993 55 | 1 |
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各响应值的决定系数R2
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| 响应值 | P5 | P6 | P7 |
| 决定系数R2 | 0.977 79 | 0.993 55 | 1 |
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| 候选点 | 1 | 2 | 3 |
| P1 / mm | 40.093 | 40.537 | 40.062 |
| P2 / mm | 44.756 | 44.965 | 43.754 |
| P3 / mm | 1.196 | 1.197 | 1.256 |
| P4 / mm | 1.204 | 1.202 | 1.219 |
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优化结果
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| 候选点 | 1 | 2 | 3 |
| P1 / mm | 40.093 | 40.537 | 40.062 |
| P2 / mm | 44.756 | 44.965 | 43.754 |
| P3 / mm | 1.196 | 1.197 | 1.256 |
| P4 / mm | 1.204 | 1.202 | 1.219 |
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| 参数名称 | 初始化种群量级 | 迭代次数 | 维度 | 限制条件个数 |
| 参数设置 | 100 | 500 | 4 | 7 |
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IHHO算法参数设置
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| 参数名称 | 初始化种群量级 | 迭代次数 | 维度 | 限制条件个数 |
| 参数设置 | 100 | 500 | 4 | 7 |
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| 最优通解 | 1组 | 2组 | 3组 |
| P1/mm | 44.830 1 | 45.051 8 | 44.691 1 |
| P2/mm | 44.619 6 | 44.532 3 | 44.674 6 |
| P3/mm | 1 | 1 | 1 |
| P4/mm | 1 | 1 | 1 |
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设计变量的3组最优通解
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| 最优通解 | 1组 | 2组 | 3组 |
| P1/mm | 44.830 1 | 45.051 8 | 44.691 1 |
| P2/mm | 44.619 6 | 44.532 3 | 44.674 6 |
| P3/mm | 1 | 1 | 1 |
| P4/mm | 1 | 1 | 1 |
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| 参数 | IHHO | NSGA-Ⅱ | 变化率 |
| P1/mm | 44.830 | 45.037 | 0.46%↓ |
| P2/mm | 44.619 | 44.638 | 0.04%↓ |
| P3/mm | 1 | 1 | |
| P4/mm | 1 | 1 | |
| 时间/s | 0.102 | 0.421 | 75.77%↓ |
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优化计算结果对比
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| 参数 | IHHO | NSGA-Ⅱ | 变化率 |
| P1/mm | 44.830 | 45.037 | 0.46%↓ |
| P2/mm | 44.619 | 44.638 | 0.04%↓ |
| P3/mm | 1 | 1 | |
| P4/mm | 1 | 1 | |
| 时间/s | 0.102 | 0.421 | 75.77%↓ |
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| 截面参数 | P1 | P2 | P3 | P4 |
| 最终值/mm | 40 | 44 | 1 | 1 |
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最终梁截面尺寸
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| 截面参数 | P1 | P2 | P3 | P4 |
| 最终值/mm | 40 | 44 | 1 | 1 |
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| 参数 | 原始量 | 最终量 | 变化率 |
| 质量/kg | 50.0 | 33.2 | 33.60%↓ |
| 最大变形量/mm | 0.631 | 0.591 | 6.33%↓ |
| 最大应力/MPa | 142.66 | 146.96 | 3.01%↑ |
| 1阶模态频率/Hz | 33.67 | 27.11 | 19.48%↓ |
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车架优化前后性能指标对比
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| 参数 | 原始量 | 最终量 | 变化率 |
| 质量/kg | 50.0 | 33.2 | 33.60%↓ |
| 最大变形量/mm | 0.631 | 0.591 | 6.33%↓ |
| 最大应力/MPa | 142.66 | 146.96 | 3.01%↑ |
| 1阶模态频率/Hz | 33.67 | 27.11 | 19.48%↓ |
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