The projects of the second swirl flow and the combined petal lobe are provided in this paper.
本文提出两种超音速尾喷流的红外抑制方案二次旋流方案与组合波瓣方案 ,并对两种方案共 7组试验件在不同的结构和二次流速度情况下进行了大量重复试验。
Wall thickness variation during multi-pass spinning of large complicated shell;
大型复杂薄壁壳体多道次旋压过程中的壁厚变化
Because of the limitation of material forming limit and other factors, it is necessary to produce this kind of parts by multi-pass spinning technology.
由于受到材料成形极限等因素的限制，成形此类回转体零件往往需要采用多道次旋压工艺。
Research on the new quadratic rotated conicoid using normal equidistance method machine optical parts;
法线等距离线法加工二次旋转曲面光学零件的研究