![乘用车车身零部件轻量化设计典型案例](https://wfqqreader-1252317822.image.myqcloud.com/cover/42/36862042/b_36862042.jpg)
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插图
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/3_01.jpg?sign=1738855046-7iv512tTx7WrWSrJgbg4NBCYpygJqOAw-0-41174ef4c14f738a09217b09377c4177)
图1-10 HC950/1180MS高速拉伸曲线
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/3_02.jpg?sign=1738855046-7hUboLaDFgpexvjEN389gyff1YoC5oJS-0-26c1c76937e25805a489cd2a8231ff3d)
图1-16 轻量化方案侧面碰撞性能分析结果(侵入速度)
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/3_03.jpg?sign=1738855046-bh0wMPeP09r0WaTsnMxAoqfA7f50uX2c-0-fe58301e6c1edf8b7eafe26d0822ea51)
图3-13 低速碰撞仿真分析工况示意图
Y 0—整车纵向中心面 Y1—工况01的壁障纵向中心面 Y2—工况02的壁障纵向中心面 V1=4km/h V2=2.5km/h L1+L2≥300mm壁障运动方向为箭头所示方向
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/4_01.jpg?sign=1738855046-5g7I4WvVBnMrFsgluc3F0ifE48whcR78-0-2c1b8664e278462cfab95d69f446c9c1)
图4-9 拓扑优化空间三维模型
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/4_02.jpg?sign=1738855046-lDVH3DjIk3RFzXGfrZ0T1RlSE1hRQaOL-0-21502380c341c0c708f10027475340d9)
图4-11 拓扑优化结果volf=0.1
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/4_03.jpg?sign=1738855046-GNw4NAVVltDS6Vp48ilNW0MPVMlNY8Mi-0-bccc847901a6cb36e5a61d9d04c99ee3)
图5-3 自然时效对屈服强度的影响
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/4_04.jpg?sign=1738855046-WmP8ZwfJjyeErJTuywLUQ3wNgB5cID3f-0-0d22398b89a9503531050345a0448d04)
图5-14 累积疲劳损伤云图
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_01.jpg?sign=1738855046-rPNpl5cU2GvYs1KA42eBh810bObTmbF0-0-269c775829545353592a582ae4f7d996)
图5-19 A铝板塑性应变
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_02.jpg?sign=1738855046-bCo8AcnF6sc9we7oONOOs4pdeSxFeO8w-0-fba317753859c06d0a7cfcd129ecd9cb)
图5-20 B铝板塑性应变
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_03.jpg?sign=1738855046-jBjI5hCOANn0sD8R15pctCySjFv41Qh9-0-f4179543942058ed593e5524395ba53c)
图5-21 A铝板FLD0
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_04.jpg?sign=1738855046-566pu2jBG3HsJIMVDDfOSzOW8oiOzq8b-0-d50c48eafa9332dcf2afadf8e03089a3)
图5-22 B铝板FLD0
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_05.jpg?sign=1738855046-jwUFOFAJBtgtR9pSH5gjpYrGxQLcv57A-0-0623f08b250e65ec09c023be1bf3abc2)
图5-23 A铝板减薄率
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_01.jpg?sign=1738855046-EtxeHa6ypw1SWKLg0VMriMMgnRB8JRwg-0-3683ab0ba7b9c9e23ace46addb79a3c0)
图5-24 B铝板减薄率
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_02.jpg?sign=1738855046-fSTWPJTE0LIDfwR3EpXZICj9MZdINzY7-0-0485a7ebe96cc46e8cc71572a2b86cd9)
图7-11 背门“以塑代钢”前后结构变化对比
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_03.jpg?sign=1738855046-eEviBKUEtyI9hRak0VgmtVohDG8amEEU-0-6b5cc0606f5be9d4294261fdafc692bd)
图9-28 前端模块概念数据
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_04.jpg?sign=1738855046-gPrf9CsN42L3ArgGVXDomMDjskopJeS4-0-581bd79f4239a982a2c32b2b5c9d409c)
图9-31 壁厚优化后的数据
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_01.jpg?sign=1738855046-p6sPos9E42LH4TkhbVyLo1WiKqHKIqEM-0-f6833ae5fb8611ad87de198c15978990)
图9-32 单元材料密度分布
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_02.jpg?sign=1738855046-5PBp9JhkQ8Dm1S2jSytc9qldlvjQsMaG-0-21efab680f7b4e95716b1fdaafd5a783)
图9-34 散热器安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_03.jpg?sign=1738855046-bYMuut1Yt9RaTCGONAf9jb9BVXGhS0mh-0-49efc6fc34639c8cd1950335053ebab1)
图9-35 前照灯安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_04.jpg?sign=1738855046-R54HTQG7HWhWX0cjFJSrsqgeI81Y2M7R-0-9cc8cceb13ffc3967b1de898db52f50f)
图9-36 机盖锁安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_05.jpg?sign=1738855046-OU1E68AhdaIvoc4GhHDTS8BoFgEGMchS-0-ed70ea718cee6e57b1603c4c43d3505d)
图9-37 静态分析
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_06.jpg?sign=1738855046-w83OuO7Ekb3MQGcmmFRe7RbZ4rxXbrGJ-0-b6d6a1779b233b037f723e0846d1e26b)
图9-38 机盖接触部位刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_01.jpg?sign=1738855046-5Rn2Mnl6NnhdLWT4WLvjH7cEfPVBQfbp-0-604c0f497eab76ee8a7b090b5bc0cacf)
图9-39 保险杠面罩安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_02.jpg?sign=1738855046-ykqErtwUyUK4F4Xpq4I7jnCnjKgvXyNj-0-1d50ff6c2faf51a084b37a99c7704c93)
图11-14 一阶扭转模态
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_03.jpg?sign=1738855046-AvLDQt9iBrCy1SiIESYGCMWAOJ3Ub17B-0-9eefa53f1943bc2e0fee001b1977e3b4)
图11-15 一阶弯曲模态
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_04.jpg?sign=1738855046-6XrcDmlp7sGJPrKqLKONxpKmQzNhTyCF-0-0fe98498dfd7acdf1221a7d4c6b7a0ea)
图11-17 行李舱盖内板的拓扑优化结果
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_05.jpg?sign=1738855046-rBKHAVzOQtZT5vkRv37F3KGPzCqNVNnn-0-235889a57d51e1f33c5351476ac83fa6)
图11-19 行李舱盖内板的形貌优化结果
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_06.jpg?sign=1738855046-KYsz6KoYjMifg5t7C9mPPrep4tSRcoDy-0-e97a2e40c3f82193ffbc0bfe9e6cde7b)
图11-24 行李箱盖内板导柱布置
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/9_01.jpg?sign=1738855046-oIJXaRD5XTxt5HYNwTI1wDZR01Dz2Gjn-0-a5f9bc9649a9c9c1eaab785051090100)
图11-26 行李舱盖板件系统的一阶弯曲模态
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/9_02.jpg?sign=1738855046-ZTq9kpwCFw0IOsqMXIAHu999lNBklpSF-0-488919f99e108dc3dd66f0c9447016b9)
图11-27 行李舱盖板件系统的一阶扭转模态
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/9_03.jpg?sign=1738855046-rBmeRMjwRo4DtFhqbtuejAW5XN1iRNuy-0-dc937ebdb4e2c530e70ca2d57679fdb6)
图12-23 整车搭载CFRP件正面碰撞分析结果
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/10_01.jpg?sign=1738855046-TUlq8zBowKqNxAZqT6LPiSPn9S4mCKPb-0-18e5a9d898489ad7d8236e25d809b440)
图12-24 整车搭载CFRP件侧面可变形壁障碰撞分析结果
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/10_02.jpg?sign=1738855046-KRz3TtygHWyBPHlCVBUP8N7q5shgoUvY-0-541574e6a1bd1478ffc9cbe5c9bf3bf6)
图12-25 钢质支架与CFRP中央通道加强板胶粘区域
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/10_03.jpg?sign=1738855046-1YJ3VoCBdpYCSrsGjaVhCYIprE2fBBVl-0-6c2ab40d07bd9a3add8e50bade298009)
图12-26 钢质前地板与CFRP中央通道加强板胶粘区域