摘要
生物体具有性能优异、轻质高效的结构形式,体现了材料的最优化分布,为机械结构的轻量化设计提供了原型与方法。通过总结轻质高效生物体结构的构型规律,应用于高速机床工作台筋板的结构仿生设计。利用Ansys的APDL参数化语言建立优化模型,确定工作台筋板的最优结构参数。结果表明,通过布置环形夹层筋板以及最大变形梯度方向上对角筋的方法是有效的,并使结构比刚度效能提高11.29%,从而实现结构的仿生轻量化。
Biological structures have excellent properties and high performance with optimized material distribution, which provide innovative prototypes and approaches for mechanical structural design. In this article configuration principles of biological structures are concluded and used in structural bionic design of high-speed working table. Based on the APDL program language of ANSYS, parametric model is proposed and best struc- tural parameters of stiffened panels are presented. The results indicate that the distribution method is effective that stiffened panels are set in dual circles and gradient directions of maximum displacements. The efficiency of specific stiffness is increased 11.29 % which shows the achievement of lightweight design by structural bionic.
出处
《组合机床与自动化加工技术》
2008年第1期1-4,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金资助项目(50575008)
航空基金资助项目(05B01004)
关键词
仿生
筋板
比刚度
APDL
bionic
stiffened panels
specific stiffness
APDL
