| 基于序列响应面法的汽车结构耐撞性多目标粒子群优化设计 |
| |
| 引用本文： | 孙光永,李光耀,钟志华,张勇.基于序列响应面法的汽车结构耐撞性多目标粒子群优化设计[J].机械工程学报,2009,45(2). |
| |
| 作者姓名： | 孙光永 李光耀 钟志华 张勇 |
| |
| 作者单位： | 湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082 |
| |
| 基金项目： | 国家自然科学基金，教育部长江学者和创新团队发展计划 |
| |
| 摘 要： | 汽车结构的耐撞性及碰撞吸能优化是一个涉及到多变量、多约束和多目标的优化过程.为克服常规响应面法在整个设计空间进行逼近导致精度低和传统的单目标优化设计只能针对其中的一个目标进行优化的缺陷.提出采用逐次逼近方法,通过移动、缩放等方式在设计空间中不断更新兴趣域,在不同的兴趣域中将试验设计、能代表实际碰撞过程精度较高的近似模型和多目标粒子群优化算法相结合,获得一组最小化各目标函数的非劣解.利用最小距离选解法快速有效地从非劣解集中挑选出一组耐撞性效果最好的解并以此解作为下一迭代步兴趣域的中心,直到收敛至最优解,最终优化解的各个目标函数值均得到提高.数字算例表明,该方法具有较高的精度和较强的工程实用性.
|
| 关 键 词： | 碰撞模型 优化设计 多目标 粒子群 |
Optimization Design of Multi-objective Particle Swarm in Crashworthiness Based on Sequential Response Surface Method |
| |
| SUN Guangyong,LI Guangyao,ZHONG Zhihua,ZHANG Yong.Optimization Design of Multi-objective Particle Swarm in Crashworthiness Based on Sequential Response Surface Method[J].Chinese Journal of Mechanical Engineering,2009,45(2). |
| |
| Authors: | SUN Guangyong LI Guangyao ZHONG Zhihua ZHANG Yong |
| |
| Affiliation: | State Key Laboratory of Advanced Design and Manufacture for Vehicle Body;Hunan University;Changsha 410082 |
| |
| Abstract: | Automotive structural optimization related to crashworthiness and energy absorption capability is a process of optimization which involves multi-variable,multi-constraint and multi-objective.To solve the problem of low precision of conventional response surface method caused by the approaching in the whole design space and the problem of traditional single-objective optimization design as it can only optimize one objective,a successive approximation method is proposed.Through moving and zooming,the region o... |
| |
| Keywords: | Crashworthiness simulation Optimization design Multi-objective Particle swarm optimization |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
