摘要
为了避免非可展回转外壳类零件及非可展曲面变截面接头类零件在自动纤维铺放过程中出现除端面以外的剪切和重送现象,简化纤维铺放过程的复杂程度,提出一种针对这2类非可展曲面零件自动纤维铺放变角度轨迹规划算法.首先获取零件外形的数据信息,然后计算不同位置处的纤维铺放角,得到初始轨线上的点,最终获取所有轨迹线;此外,还针对不同零件给出了初始点的获取方法;并针对非可展回转外壳类零件及非可展曲面变截面接头类零件,以CATIA CAA与VC6.0为开发平台,给出了该算法的具体实现步骤.通过计算相邻两丝束之间的间隙或重叠,对文中算法的可行性进行了理论验证.
To avoid cutting and restarting of materials during automated fiber placement process of non- developable rotational shell component and non-developable variable cross-section joint component, the paper presents a variable-angle trajectory planning algorithm for two non-developable surface components, which can simplify the automated fiber placement process. First, the shape data information of components is obtained, and then the fiber placement angle in any position is calculated for getting the points on initial track line to obtain all track lines. Methods of acquiring initial points are presented for different components. For non-developable rotational shell and non-developable variable cross-section joint component, this paper gives the detailed realization procedures for the above algorithm. At last, through calculating the gap and the overlap between the adjoining tows, the feasibility of the above algorithm is verified.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2013年第10期1523-1529,共7页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金(51005060)
国家科技重大专项(2009ZX04004-111)
关键词
非可展曲面
自动纤维铺放
轨迹规划
外壳类零件
变截面接头类零件
non-developable surface
automated fiber placement
trajectory planning
shellcomponent
variable cross-section joint component
