Grey confidence interval-based reliability analysis method for structure stress-intensity interference model set
A technology of structural stress and confidence interval, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as poor engineering applicability, calculation of structural reliability indicators without consideration, and large sample demand
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[0098] In order to fully understand the characteristics of the invention and its applicability to engineering practice, the invention completes structural reliability analysis based on gray confidence intervals for limited data information of structural stress and strength. Among them, the radius of structural stress and strength is known, namely: S r = 3, R r = 1.5. Based on past experience, there are a lot of data information representing structural strength, with a total of 15 sample points; considering the complexity of engineering problems, data information representing structural stress needs to be obtained through individual experiments, so the amount of data is small, with a total of 5 sample points . After sorting, it can be seen that the increasing sample sequence of structural stress and strength is:
[0099] S data ={44.3,46.9,48.1,50.0,51.4}
[0100] R data ={49.3,49.6,49.6,49.7,49.9,50.2,50.3,50.4,50.5,50.6,50.6,50.9,51.0,51.2,51.4}
[0101] According to t...
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