金属橡胶毛坯铺设路径规划

Paths planning of metal rubber blank laying

针对金属橡胶毛坯铺设工艺,提出了以背景网格为基础的优化模型,利用遗传算法建立了定位销设计和路径规划的优化方法,为毛坯铺设提供了理论依据.定位销数量由底面背景网格非零网格数确定,定位销排布由遗传算法计算得到.根据定位销优化设计结果,逐层对铺设路径进行规划,优化路径比经验路径所得毛坯更加均匀、密实,铺设层数越多,路径规划的优势越明显,铺设10层时,两毛坯目标函数b的值相差50%;单层路径数对毛坯的铺设质量影响不大;随着螺旋卷铺设长度的增加,不同单层路径数铺设的毛坯接触状态趋于一致.

Laying metal rubber blank with a pin board was proposed as a preparation technology. An optimization model based on background grids was built. Optimizing meth- ods of dowels and paths planning were established with genetic algorithm according to char- acteristics of blank laying. Theoretical basis of metal rubber blank laying was provided. Dowel number was obtained according to non-zero grid number of bottom background grids. Dowel configuration was computed with genetic algorithm. Based on the dowel optimization design results, laying paths are devised in each layer. The blank with optimized paths is more homogeneous and denser than that with experiential paths. The advantage of paths planning is more obvious with more laying layers. There is a difference of fifty percent of object function b at ten layers between two kinds of blanks. Layinging quality is little influ- enced by the number of laying paths in each layer. With increase of helix screw laying length, contact states are coincident in blanks with different numbers of laying paths in each layer.