Based on an experimental study of multiple repairing welded joints on high strength offshore structure steel, the R-S-N curves and life estimation equations under Weibull distribution are presented.
对海洋平台用高强度钢焊接接头多次补焊的疲劳性能进行试验研究，给出采用威布尔分布下的寿命估算式及R—S—N曲线。
In the present paper, an experimental and analytical study of effects of jointed member stiffness on the fastener load distribution is performed for double-shear, multiple-bolted joints of composite.
通过试验和有限元分析研究被连接元件的相对刚度对多钉双剪连接钉载分配的影响。
In the second part of the thesis, an experimental study on the effect of embedded depth on the uniformity coefficient of irrigation and the distribution of soil moisture was made.
第二部分对渗灌管埋深对灌水均匀度和土壤水分分布的影响进行了试验研究。
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