对于裂纹扩展问题, 提出了一种高效的半解析矩阵摄动法.When crack expanding problem is studied, a high efficiency semi - analytical matrix perturbation method is put forward.本文用能量状态近似法和奇异摄动法两件方法讨论了最优飞行 剖面 的生成.In this paper, two method, energy stats...