![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=1739535155-yP5XNM1zsxQeLrFK1PYa6tY20xaHejKE-0-e72d9a453977c2a2e6fe34a1c6271ad6)
图1-10 HC950/1180MS高速拉伸曲线
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/3_02.jpg?sign=1739535155-N3WfeOWiTS2ODRa84LZFhGDKCNHO1J2e-0-697e8497d802f58510c46b37bc52728b)
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=1739535155-OnEqxXw2umF4yZ6F6MI7xDhXikYB8DPB-0-b48eb0101ffd965491b5045824260a80)
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=1739535155-zg7Ds6JUUyMczAKgGAI7oAZUzqgWsshk-0-4fc3e9443d0e53543740aedf768c1c14)
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=1739535155-NMZWrtkvjeGmqDwEXzsKinHSJtlgmahM-0-fa3a6afb95ddef4f088c19ca8f4a9ca1)
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=1739535155-bB50wxDsF5p1HS6qFRTmSX6Bpvp54Reo-0-98ba1ce25c0e6fc86782676004e2c6a0)
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=1739535155-wNcfdT5Mh1ouM9HeK4Mfu3vFpapF2KDD-0-552239221a6d821fd97f86bd27bd5ebb)
图5-14 累积疲劳损伤云图
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_01.jpg?sign=1739535155-JSWUKiRVP05mwtMTX4tToO4xzkp9jwHz-0-2e4ab9ee2c357e1baad7991938f18d36)
图5-19 A铝板塑性应变
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_02.jpg?sign=1739535155-8RzLJLKEu1dQvYvlVTtI7TGdQ74XKdYo-0-2542c985ee2aa53ac17928753cf8c41f)
图5-20 B铝板塑性应变
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_03.jpg?sign=1739535155-Q2ud9RQhSPZbjf7APxiiS8ZfEf5Guspe-0-ae587ae57ab69ae4561a1bb63a5bf29b)
图5-21 A铝板FLD0
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_04.jpg?sign=1739535155-b8eXqgYUfMHvveC8QUJWXOHJ1GhIdQk8-0-e9d82bd0bf079afca2c7aea518cf77ab)
图5-22 B铝板FLD0
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/5_05.jpg?sign=1739535155-3fhRwpbYlZlRcyNsN3g2TTbXxRL98kNz-0-2a94a294227dc32dd1a18e6922560435)
图5-23 A铝板减薄率
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_01.jpg?sign=1739535155-CZ84Wopj0UyV3cWp2IYalz7eujf9tANL-0-f895b498a92d884b77545f8d59930e63)
图5-24 B铝板减薄率
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_02.jpg?sign=1739535155-Qun96hnRNDEwDMeYMSMe2a57nQBb8ULl-0-6b11da0517e3361400d5fb6b10445f82)
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=1739535155-2pjWYBGvwJ9BTyWcK4OGSugwgbGIM2eS-0-87a13aa234f6fefdd18be0b3420453d4)
图9-28 前端模块概念数据
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/6_04.jpg?sign=1739535155-XDFze3zSnhBTLk40QfViE29WF45VIL1J-0-6e523294b19a24ef91773e5b956a7812)
图9-31 壁厚优化后的数据
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_01.jpg?sign=1739535155-RsdXP4CJjVr9nXCEcH31jwQVF532UVJn-0-64a496d2fdf9c6ca515f2898ef23da4e)
图9-32 单元材料密度分布
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_02.jpg?sign=1739535155-aRglhyK0E0Lq7jOhqI3LnGfnDEjv3kgK-0-0ca603bccd10f1484b70a8ab8de05889)
图9-34 散热器安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_03.jpg?sign=1739535155-K9kjNeR1gAYU6bg6MUTAePTJBYQ9fiOk-0-ce57484b18e32ceb81796af497e4c867)
图9-35 前照灯安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_04.jpg?sign=1739535155-Sav0TQK8BR65RKBFTHxJnXj1R8RcbV06-0-8eaa6b2321b44529ec5c72c47d647e54)
图9-36 机盖锁安装点刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_05.jpg?sign=1739535155-SEteseNr5gFqQRAJayDHAPi7hXwRIdl9-0-d2118de0884b3addeb7d8575e409849e)
图9-37 静态分析
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/7_06.jpg?sign=1739535155-KU8tghTmSUY59mBU4a9rbohOpZLRKuIz-0-1d4e965d118bcc7a96abe79b63463def)
图9-38 机盖接触部位刚度
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_01.jpg?sign=1739535155-3xntFB9Th9L0kd0TLQbIvUhP4LHPy7Dr-0-7336766a8a961021309d36b38046874c)
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=1739535155-M1kNKFutCp8H4n7201Jg0LflqApMH3da-0-1f5c042dc96e7acbbe1555bdaa121813)
图11-14 一阶扭转模态
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_03.jpg?sign=1739535155-J6d1JDf5ncqDxlIhRM119CTjK6EdkeIX-0-cedf443f7d552f612543e1baf5b2e91a)
图11-15 一阶弯曲模态
![](https://epubservercos.yuewen.com/02D28C/19549638208901806/epubprivate/OEBPS/Images/8_04.jpg?sign=1739535155-gWl2IyaHu7hc9ROvCefPscadLMAjxXsK-0-fa7580ea2439913727c131c17603faf1)
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=1739535155-aq97x4frO7tjAqkjQUgwlIqMreGMvbYE-0-290ca8567f061540043a9945172806c6)
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=1739535155-ii8lpVKF3H9qTwDSapRzJVm8y9xr2XN2-0-d2e30d78980a5ac038308a6a1d790218)
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=1739535155-84lQKQOD2R6QmLf0GiyiwUEHgFrg5meS-0-f99dd7b79c080e3288a5af35903f12e6)
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=1739535155-nHzZeU3fXL1bi1QRKof1tGVMQ0x9NzL9-0-d4ab16b37d72dbabbba7ed7ed004a796)
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=1739535155-8oVTuKf0f0NWPZ8zRQS8OqK54pYNHD8r-0-5b8538a2fc9c67f9792ed91226237ad9)
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=1739535155-ucxvNkD4CKqnhwakqkTw5MwzOUmLshAg-0-eeebab814e86216ca43e69b4875cd503)
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=1739535155-JjGEDjFw284oPph4G7V5f7yp6Kx8wcSi-0-43bae003ddf5b9d460517b31943eceee)
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=1739535155-tfl4EtIblfYONHHDsN6xPEJ3ISIvbyz2-0-02719c2379168e562cdaec689304783d)
图12-26 钢质前地板与CFRP中央通道加强板胶粘区域