摘要
为满足某炮尾结构布置的特殊需要,在输弹槽贯穿托弹板的开放式炮尾结构基础上,重新设计传力结构;采用基于响应面法(Response Surface Method,RSM)的多目标遗传算法NSGA-II寻找齿形传力结构的最优参数,通过编写Python脚本控制Abaqus内核实现自动前处理,对其进行有限元分析,并基于iSight实现多目标三维模型设计优化.该方法摒弃传统的二维优化三维验证的理念,将多目标遗传算法与RSM结合起来,在iSight中直接进行三维模型设计优化,可节省计算时间、提高计算效率、改善设计水平.
To meet the special arrangement requirements of a breech structure,the force transmission structure is redesigned on the basis of an open breech structure of which the loading tray runs through the follower;the optimal parameters are found out for a dentiform force transmission structure by multi-objective genetic algorithm NSGA-II,which is based on Response Surface Method（RSM）,the automatic preprocessing is implemented through controlling Abaqus kernel by programming with Python script,then the finite element analysis is performed,and the multi-objective design optimization of 3D model is carried out based on iSight.The method abandons the traditional idea,i.e.performing optimization by 2D model and validation by 3D model,combines NSGA-II with RSM,and implements the multi-objective design optimization of 3D model directly in iSight.The computing time can be saved,and the efficiency and design level can be improved.
出处
《计算机辅助工程》
2010年第4期91-94,98,共5页
Computer Aided Engineering
关键词
炮尾闩体
三维设计优化
响应面法
多目标优化
遗传算法
有限元分析
breech-block
3D design optimization
response surface method
multi-objective optimization
genetic algorithms
finite element analysis
