Article(id=1251830035041174210, tenantId=1146029695717560320, journalId=1251234171981443176, issueId=1251830032927244964, articleNumber=null, orderNo=null, doi=10.19659/j.issn.1008-5300.20250525049, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1748102400000, receivedDateStr=2025-05-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1776389138230, onlineDateStr=2026-04-17, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776389138230, onlineIssueDateStr=2026-04-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776389138230, creator=13701087609, updateTime=1776389138230, updator=13701087609, issue=Issue{id=1251830032927244964, tenantId=1146029695717560320, journalId=1251234171981443176, year='2025', volume='41', issue='5', pageStart='1', pageEnd='78', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1776389137727, creator=13701087609, updateTime=1776389447642, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1251831332897243625, tenantId=1146029695717560320, journalId=1251234171981443176, issueId=1251830032927244964, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1251831332897243626, tenantId=1146029695717560320, journalId=1251234171981443176, issueId=1251830032927244964, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=54, endPage=61, ext={EN=ArticleExt(id=1251830035276055237, articleId=1251830035041174210, tenantId=1146029695717560320, journalId=1251234171981443176, language=EN, title=Lightweight Design of Electronic Device Shell Based on Topology-Response Surface Collaboration, columnId=1251830035213140675, journalTitle=Electro-Mechanical Engineering, columnName=Structure Design, runingTitle=null, highlight=null, articleAbstract=
A collaborative design method of topology optimization and response surface optimization is proposed to meet the lightweight requirements of the structural shell of aerospace electronic devices. Based on the impact response spectrum, the topology design is completed using the variable density method and the mass of structural shell is reduced by 28.1%. A Kriging surrogate model is established to solve the issue of stress concentration in the support ears after topology design. Multi-objective genetic algorithm is used to optimize parameters such as wall thickness, height of the support ear and fillet radius at the connection of the support ears. As a result, the shell mass is reduced by 21.1% compared to the initial design, the maximum equivalent stress is reduced by 0.38% and the engineering requirement of a safety factor (≥1.5) is satisfied. This method takes into account both global and local optimization through a two-stage optimization strategy, which provides an efficient and highly precise solution to lightweight design of aerospace electronic devices under impact loads.
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文中针对航天电子设备结构壳体轻量化需求,提出一种拓扑优化与响应面优化的协同设计方法。基于冲击响应谱采用变密度法完成拓扑设计,使壳体质量降低了28.1%;针对拓扑设计后支耳应力集中的问题,建立Kriging代理模型,通过多目标遗传算法优化支耳连接处壁厚、支耳高度、圆角半径等参数,使壳体质量较初始设计降低了21.1%,最大等效应力下降了0.38%,满足安全系数≥1.5的工程要求。该方法通过两阶段优化策略兼顾全局与局部,为冲击载荷下航天电子设备的轻量化设计提供了高精度、高效解决方案。
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李航 男,1991 年生,工程师,主要从事航天电子设备结构设计、热设计和力学设计工作。
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37(11): 3197-3225., articleTitle=Kriging模型及代理优化算法研究进展, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1251830040246305732, tenantId=1146029695717560320, journalId=1251234171981443176, articleId=1251830035041174210, xref=null, ext=[AuthorCompanyExt(id=1251830040254694341, tenantId=1146029695717560320, journalId=1251234171981443176, articleId=1251830035041174210, companyId=1251830040246305732, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Beijing Institute of Computer Technology and Applications, Beijing 100854, China), AuthorCompanyExt(id=1251830040263082950, tenantId=1146029695717560320, journalId=1251234171981443176, articleId=1251830035041174210, companyId=1251830040246305732, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=北京计算机技术及应用研究所,北京 100854)])], figs=[ArticleFig(id=1251830042041466890, tenantId=1146029695717560320, journalId=1251234171981443176, articleId=1251830035041174210, language=EN, label=null, caption=null, figureFileSmall=wUAx+IgncsZw4C4E1jNvUg==, figureFileBig=gXeiAz9G40epXQFn3e/fzw==, tableContent=null), ArticleFig(id=1251830042129547277, tenantId=1146029695717560320, journalId=1251234171981443176, articleId=1251830035041174210, language=CN, label=图1, caption=
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| 名称 | 密度/(kg·m-3) | 弹性模量/GPa | 泊松比 |
|---|
| 镁合金 | 1 830 | 45.0 | 0.35 |
| FR4 | 2 000 | 24.0 | 0.28 |
| 铜合金 | 8 300 | 110.0 | 0.34 |
| 二氧化硅 | 2 330 | 70.0 | 0.20 |
| 聚乙烯 | 950 | 1.1 | 0.42 |
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仿真材料参数表
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| 名称 | 密度/(kg·m-3) | 弹性模量/GPa | 泊松比 |
|---|
| 镁合金 | 1 830 | 45.0 | 0.35 |
| FR4 | 2 000 | 24.0 | 0.28 |
| 铜合金 | 8 300 | 110.0 | 0.34 |
| 二氧化硅 | 2 330 | 70.0 | 0.20 |
| 聚乙烯 | 950 | 1.1 | 0.42 |
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| 阶数 | 固有频率/Hz |
|---|
| 1 | 2 178.3 |
| 2 | 3 064.1 |
| 3 | 3 179.9 |
| 4 | 3 992.7 |
| 5 | 4 256.2 |
| 6 | 4 323.6 |
| 7 | 4 611.8 |
| 8 | 4 726.1 |
| 9 | 4 907.4 |
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前9阶模态固有频率
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| 阶数 | 固有频率/Hz |
|---|
| 1 | 2 178.3 |
| 2 | 3 064.1 |
| 3 | 3 179.9 |
| 4 | 3 992.7 |
| 5 | 4 256.2 |
| 6 | 4 323.6 |
| 7 | 4 611.8 |
| 8 | 4 726.1 |
| 9 | 4 907.4 |
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| 指标 | 训练集R2 | 测试集R2 |
|---|
| 质量/g | 0.993 | 0.991 |
| 最大应力/MPa | 0.972 | 0.951 |
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决定系数表
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| 指标 | 训练集R2 | 测试集R2 |
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| 质量/g | 0.993 | 0.991 |
| 最大应力/MPa | 0.972 | 0.951 |
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| 状态 | 质量/g | 最大等效应力/MPa |
|---|
| 原方案 | 194.7 | 171.45 |
| 拓扑优化后 | 139.8 | 183.54 |
| 响应面优化后 | 153.6 | 170.79 |
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优化前后参数对比
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| 状态 | 质量/g | 最大等效应力/MPa |
|---|
| 原方案 | 194.7 | 171.45 |
| 拓扑优化后 | 139.8 | 183.54 |
| 响应面优化后 | 153.6 | 170.79 |
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| 状态 | 质量 | 最大等效应力 |
|---|
| 拓扑优化后变化率 | ↓28.10 (相对原方案) | ↑7.05 (相对原方案) |
| 响应面优化后变化率 | ↑9.80 (相对拓扑) | ↓6.90 (相对拓扑) |
| 最终变化率 | ↓21.10 (相对原方案) | ↓0.38 (相对原方案) |
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优化前后变化率对比%
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| 状态 | 质量 | 最大等效应力 |
|---|
| 拓扑优化后变化率 | ↓28.10 (相对原方案) | ↑7.05 (相对原方案) |
| 响应面优化后变化率 | ↑9.80 (相对拓扑) | ↓6.90 (相对拓扑) |
| 最终变化率 | ↓21.10 (相对原方案) | ↓0.38 (相对原方案) |
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