Compared with accurate diagnosis, the system’s selfdiagnosing capability can be greatly increased through the t/kdiagnosis strategy at most k vertexes to be mistakenly identified as faulty under the comparison model,...Compared with accurate diagnosis, the system’s selfdiagnosing capability can be greatly increased through the t/kdiagnosis strategy at most k vertexes to be mistakenly identified as faulty under the comparison model, where k is typically a small number. Based on the Preparata, Metze, and Chien(PMC)model, the n-dimensional hypercube network is proved to be t/kdiagnosable. In this paper, based on the Maeng and Malek(MM)*model, a novel t/k-fault diagnosis(1≤k≤4) algorithm of ndimensional hypercube, called t/k-MM*-DIAG, is proposed to isolate all faulty processors within the set of nodes, among which the number of fault-free nodes identified wrongly as faulty is at most k. The time complexity in our algorithm is only O(2~n n~2).展开更多
为得到乌江航道千吨级标准船型的K、T指数计算经验公式,基于乌江航道和乌江千吨级船舶特点,提出适应于该船型的船舶操纵运动数学模型研讨小组(Ship Maneuvering Mathematical Model Group,MMG)模型,利用船模试验资料验证模型的准确性。...为得到乌江航道千吨级标准船型的K、T指数计算经验公式,基于乌江航道和乌江千吨级船舶特点,提出适应于该船型的船舶操纵运动数学模型研讨小组(Ship Maneuvering Mathematical Model Group,MMG)模型,利用船模试验资料验证模型的准确性。利用该模型对一系列千吨级船舶进行模拟仿真,得到Z形操舵运动曲线,并使用野本法得到该系列船舶的无因次化K、T指数。将所得结果作为样本库,利用交叉二次回归方法,计算得到适应于乌江千吨级船舶的无因次化K、T指数计算的经验公式。在此基础上使用3条实船的试验数据验证所提经验公式的精确性。展开更多
基金supported by the National Natural Science Foundation of China(61363002)
文摘Compared with accurate diagnosis, the system’s selfdiagnosing capability can be greatly increased through the t/kdiagnosis strategy at most k vertexes to be mistakenly identified as faulty under the comparison model, where k is typically a small number. Based on the Preparata, Metze, and Chien(PMC)model, the n-dimensional hypercube network is proved to be t/kdiagnosable. In this paper, based on the Maeng and Malek(MM)*model, a novel t/k-fault diagnosis(1≤k≤4) algorithm of ndimensional hypercube, called t/k-MM*-DIAG, is proposed to isolate all faulty processors within the set of nodes, among which the number of fault-free nodes identified wrongly as faulty is at most k. The time complexity in our algorithm is only O(2~n n~2).
文摘为得到乌江航道千吨级标准船型的K、T指数计算经验公式,基于乌江航道和乌江千吨级船舶特点,提出适应于该船型的船舶操纵运动数学模型研讨小组(Ship Maneuvering Mathematical Model Group,MMG)模型,利用船模试验资料验证模型的准确性。利用该模型对一系列千吨级船舶进行模拟仿真,得到Z形操舵运动曲线,并使用野本法得到该系列船舶的无因次化K、T指数。将所得结果作为样本库,利用交叉二次回归方法,计算得到适应于乌江千吨级船舶的无因次化K、T指数计算的经验公式。在此基础上使用3条实船的试验数据验证所提经验公式的精确性。
