基于近似模型技术和多目标优化理论开展框架结构优化设计。针对传统优化方法不能实现自动计算和连续优化的问题,采用APDL参数化语言实现了框架结构的参数化建模,并将Ansys与ISIGHT集成搭建了框架结构的优化设计流程。基于试验设计,根据灵敏度分析完成了框架结构设计变量的筛选,通过近似模型的精度分析构建了框架结构响应面近似模型。采用响应面近似模型进行数值计算,使用智能优化算法完成框架结构单目标和多目标优化设计,并将结果与有限元计算值对比,验证基于近似模型优化的准确性。
Based on approximate model technology and multi-objective optimal theory, non-pressue frame structure optimial design have been performed.Considering the traditional optimization design cann't realize automatic calculation and continuous optimization, this paper build a parametric model of frame structure using APDL language and set up a optimizing design process of frame structure through integrating Ansys with ISIGHT software. Based on the design experiment, this paper completes the choose of frame structure design variables through analyzing sensitive degrees of design variable and builds response surface approximation model through the precision analysis of approximate mode.Single objective and multi-objective optimial design of frame structure are carried out using response surface approximation model combined with an intelligent optimization algorithm.Compared with the result of FEA result, the correctness of optimial result is peformed.
2016,38(4): 99-104 收稿日期：2015-08-25
DOI：10.3404/j.issn.1672-7619.2016.04.020
分类号：U661.4
作者简介：胡光兴(1990-),男,硕士,研究方向为船舶结构优化设计。
参考文献：
[1] 陈明. 面向全过程的桥梁安全受控系统设计[J]. 计算机工程与设计, 2010, 31(14):3326-3330, 3335. CHEN Ming. Bridge safety control system design based on process-cycle[J]. Computer Engineering and Design, 2010, 31(14):3326-3330, 3335.
[2] 张勇. 基于近似模型的汽车轻量化优化设计方法[D]. 长沙:湖南大学, 2008. ZHANG Yong. Optimization design method of vehicle lightweight based on approximate model[D]. Changsha:Hunan University, 2008.
[3] 陈连. 求解任意梁的普遍化方法[J]. 机械工程学报, 2004, 40(12):71-74. CHEN Lian. General method for arbitrary beam analysis[J]. Chinese Journal of Mechanical Engineering, 2004, 40(12):71-74.
[4] 吕亚楠. 地质体三维可视化应用研究[D]. 西安:长安大学, 2010.LV Ya-nan. Research on visualization of 3D geological body[D]. Xi'an:Chang'an University, 2010.
[5] 李焱. 基于加权平均法和均匀设计的多目标进化算法[D]. 西安:西安电子科技大学, 2011. LI Yan. A multi-objective evolutionary algorithm based on weighted sum method and uniform design[D]. Xi'an:Xi'an University of Electronic Science and Technology, 2011.
[6] 阮宏博. 基于遗传算法的工程多目标优化研究[D]. 大连:大连理工大学, 2007. RUAN Hong-bo. Study on multi-objective optimization of engineering project based on genetic algorithm[D]. Dalian:Dalian University of Technology, 2007.
[7] 庞路. 优化算法在通信信号处理中的应用[D]. 济南:山东大学, 2011. PANG Lu. Applications of optimization algorithms in communication signal processing[D]. Jinan:Shandong University, 2011
[8] 王燕. 潜艇结构的优化设计方法研究[D]. 哈尔滨:哈尔滨工程大学, 2010. WANG Yan. Optimal design method research of submarine structure[D]. Harbin:Harbin Engineering University, 2010.
