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承载式车身结构局部改型的快速耦合参数化优化设计

本站小编 Free考研考试/2022-02-13

DOI: 10.11908/j.issn.0253-374x.2019.08.016

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中图分类号: U463.82


基金项目: 国家重点研发计划项目(2016YFB0101601 -7);吉林省科技发展计划项目(20160101283JC);吉林省省校共建项目 (Grant No. SXGJSF2017-2-1-5)




Rapidly Coupling Parametric Optimal Design of Partial Structure Modification for Integral Body
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摘要:针对局部改型结构建立参数化模型,并与其余有限元模型耦合,生成车身结构局部参数化耦合模型.根据性能验证该快速耦合参数化建模的可靠性以及基于该方法所建立模型优化设计的合理性.车身局部参数化耦合模型的建模准确度较高,通过试验设计及径向基函数建立的近似模型能够较好地预测车身耦合模型的性能,利用混合方法多目标优化算法求解设计变量,可实现多目标的优化设计.故快速耦合参数化优化方法在满足设计有效性同时可节省建模时间、提高优化效率.



Abstract:A parameterized model for local modification structure is built coupled with the finite model to generate a local parametric coupling model. According to the performance, the credibility of the fast coupling parameterization modeling and the accuracy of the local parametric coupling model could be confirmed. Besides, the approximation established by design of experiments and radial basis function can predict the performance of the body successfully and the hybrid method multi-objective optimization can be used to achieve multi-objective optimization design. Therefore, the method built can meet the design effectiveness while saving modeling time and improving optimization efficiency.





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