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PIAnO在白车身轻量化设计上的应用
投稿时间:2017-09-13  修订日期:2018-03-14  点此下载全文
引用本文:占华,方立桥,赖宇阳.PIAnO在白车身轻量化设计上的应用[J].计算机辅助工程,2018,27(3):29-34.
作者单位E-mail
占华 一汽海马汽车有限公司 整车性能集成开发部 zhanh@haima.com 
方立桥 树优信息技术有限公司 技术部 liqiao2031@126.com 
赖宇阳 树优信息技术有限公司 技术部 zhanh@haima.com 
中文摘要:以某SUV车型的白车身为研究对象,采用高效的实验设计和优化软件PIAnO,综合考虑其模态、刚度、40%偏置碰和侧碰等性能进行轻量化设计。确定并优化设计变量,对白车身刚度和模态性能进行近似建模。提出分段优化方案并进行仿真验证,得到的白车身质量减少11.93 kg,下降3.08%。将该轻量化白车身的100%正碰、强度、IPI和NTF性能进行验证,满足设计要求,证明基于PIAnO的白车身轻量化策略行之有效。
中文关键词:白车身  PIAnO  轻量化  实验设计  近似模型
 
Application of PIAnO in lightweight design of body in white
Abstract:Taking the body in white of a SUV as the research object, a high efficiency design of experience and optimization software PIAnO is adopted, and the lightweight design is carried out considering the performance of modal, stiffness, 40% offset impact and side impact. The design variables are identified and optimized, and the stiffness and modal performance are modeled approximately. A piecewise optimization scheme is proposed and verified by simulation, the body in white mass loss is 11.93 kg (which is 3.08%). The lightweight body in white is verified by the performance of 100% frontal impact, strength, IPI and NTF, which meets the design requirements. It is proved that the lightweight strategy based on PIAnO is an effective method.
keywords:body in white  PIAnO  lightweight  design of experience  approximation model
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