中国土木工程学报 关键词： 钢拱; 大跨度结构; 现场试验; 稳定; 初始缺陷 [gap=1440]Keywords: steel arch; long_span structure; scene test; stability; the initial defect
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Based on the consistent mode imperfection method, the initial defect model was determined by the least order mode of eigenvalue buckling, and the maximum displacement value.
初始缺陷的模型是根据一致缺陷模态法，按最小特征值屈曲模态分布，并控制其最大值的方法确定。
Influence of the initial temperature fields and mold hardness on the shrinkage defect of ductile iron casting by EPC process was mainly investigated in this paper.
本文主要讨论了初始温度场和铸型硬度对消失模铸造球墨铸铁件收缩缺陷的影响。
The morphology filter is used for the defect diagnosis of rolling bearings, extracting the impulsive signal from the initial vibration signal and demodulating the signals.
将形态滤波应用到滚动轴承缺陷诊断中，通过形态滤波将滚动轴承原始振动信号的脉冲信号提取出来，从而达到解调的效果。
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