| 高速列车头型气动反设计方法 | |
| Alternative Title | Inverse design for aerodynamic shape of high-speed train nose |
陈大伟 ; 姚拴宝; 刘韶庆; 郭迪龙
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| Source Publication | 浙江大学学报. 工学版
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| 2016 | |
| Volume | 50Issue:4Pages:631 |
| ISSN | 1008-973X |
| Abstract | 基于支持向量机响应面模型,发展高速列车头型有约束气动反设计方法.为了减少流场计算量,针对反设计指标和约束条件分别建立对应的响应面模型,通过粒子群优化算法寻找满足设计目标值和约束条件的反设计外形.为了验证该方法的有效性,以3辆编组真实外形高速列车的1∶8缩比外形为研究对象,将整车气动阻力系数和流线型部分容积作为设计指标,研究单目标无约束、有约束及多目标无约束反设计方法.结果表明:采用提出的反设计方法能够快速得到满足设计指标和约束条件的高速列车头型,很容易拓展为能够解决任意复杂几何外形的多目标、有约束气动反设计方法,有利于提高高速列车头型工程设计的效率及针对性. |
| Other Abstract | A constrained inverse design method for the aerodynamic shape of high-speed train nose was developed based on the support vector regression(SVR)model.The SVRs for the design and constraint objectives were respectively established in order to reduce the CFD computation.Then the inverse design shapes that meet the target values and constraints could be found by the particle swarm optimization (PSO)algorithm.The scaled real shape(1∶8)for high-speed train with three carriages was taken as the study object in order to verify the inverse design method.The aerodynamic drag coefficient of the whole train and the volume of the streamlined part were taken as the design targets.The constrained and unconstrained single objective and multi-objective design method without constraints were analyzed. Results show that the proposed approach can quickly get the inverse shape that meets the design specifications and constraints.The approach can be easily expanded to solve constrained and multiobjective inverse problems for arbitrarily complex geometries.The approach may improve the engineering design efficiency of high-speed train nose. |
| Keyword | Inverse Design Support Vector Regression(Svr) Multi-objective Design High-speed Train |
| Indexed By | CSCD ; EI |
| Language | 中文 |
| WOS Keyword | inverse design ; support vector regression(SVR) ; multi-objective design ; high-speed train |
| Funding Organization | 十二五国家科技支撑计划资助项目 ; 国家973重点基础研究发展规划资助项目 ; 国家 863高技术研究发展计划资助项目 |
| CSCD ID | CSCD:5694819 |
| Department | LMFS流固耦合与数值计算(LHO) |
| Ranking | False |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59822 |
| Collection | 流固耦合系统力学重点实验室 |
| Recommended Citation GB/T 7714 | 陈大伟,姚拴宝,刘韶庆,等. 高速列车头型气动反设计方法[J]. 浙江大学学报. 工学版,2016,50,4,:631. |
| APA | 陈大伟,姚拴宝,刘韶庆,&郭迪龙.(2016).高速列车头型气动反设计方法.浙江大学学报. 工学版,50(4),631. |
| MLA | 陈大伟,et al."高速列车头型气动反设计方法".浙江大学学报. 工学版 50.4(2016):631. |
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| a2016-232.pdf（2962KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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