摘要
航空器耐撞性是适航性的很重要的一个方面,耐撞性好的飞行器能够很好地保护人员和财务安全,减少经济损失,近年来,由于复合材料良好的力学性能,已经广泛应用在航空、航天领域中。为了在碰撞时获得最大的吸能效果,文中对带有破坏引导环的不同几何参数的复合材料管的吸能问题进行研究,首先进行了冲击试验,并建立了与试验结果匹配的有限元模型,通过正交试验设计方法,选择了一些设计参数样本,通过交叉验证的动态Kriging方法生成了代理模型,最后使用人工蜂群算法对代理模型进行优化,并得到了较好的效果。
The crashworthiness of an aircraft is extremely important for airworthiness.A vehicle which is able to resist strong collision will prevent the crew and properties from being damaged and reduce the economic losses.Composite materials have been widely used for energy absorption in aerospace field.In order to maximize the specific energy absorption of the composite tube,a guide ring is equipped with which for a more thorough destruction,various geometric parameters such as wall thickness,pipe radius and radius of the guide ring have been studied.Firstly,a FEMhas been built according to the impact experiment.Then,a few samples designed through orthogonal experiment were calculated by FEA using LS-DYNA.Next,a dynamic Kriging surrogate using cross validation was established based on the samples.Finally,the optimization problem for geometric parameters was solved by artificial bee colony algorithm and better result was obtained.
作者
刘紫微
徐元铭
童岩
LIU Zi-wei;XU Yuan-ming;TONG Yan(School of Aeronautical Science and Engineering Technology, Beijing University of Aeronautics and Astronautics,Beijing 100191, China)
出处
《飞机设计》
2017年第5期27-33,共7页
Aircraft Design
关键词
复合材料
吸能
动态kriging模型
人工蜂群
优化
composite material
energy absorption
dynamic kriging surrogate
artificial bee colony algorithm
optimization
