摘要
CAD、结构优化设计及加工制造技术的日益发展,为新型加筋壁板的设计和应用提供了条件。为进一步拓展直筋加筋板的设计空间,提出了一种曲筋加筋板的设计形式,开发了一套用于曲筋壁板设计的优化设计集成框架。该框架基于Modelcenter多学科优化设计平台、集成了Catia和Abaqus参数化设计与分析功能。筋条曲线的生成采用参数数目可变的等距剖分三次B样条插值函数。通过计算实例分析,进行了曲筋板与直筋板的优化对比。结果表明,曲筋加筋板获得了比直筋加筋板更好的稳定性。
The development of CAD,structure optimization and manufacturing technology provides conditions for the design and application of newstiffened panels. To further expand design space of straight stiffened panels,a newform of stiffened panels is proposed and an optimization design framework for curvilinear blade-stiffened panels is developed based on Modelcenter,a multidisciplinary optimization environment,Catia and Abaqus. Stiffeners are generated by equally-split cubic B-spline interpolation function,which has no limit to the number of Parameters. By an example,a curvilinear stiffened panel and a straight stiffened panel are optimized and compared. Optimization results showthat,curvilinear stiffened panels have better stability than straight stiffened panels.
出处
《飞机设计》
2015年第5期17-22,共6页
Aircraft Design
关键词
优化
曲线片形加筋板
稳定性
B样条
optimization
curvilinear blade-stiffened panels
stability
B-spline
