The leakage may occur at the flange connection part and sealing surface of pump in primary circuit system due to the drastic change of working condition.In view of the difficult to establish an accurate and complete leakage mechan-ism model,the Gaussian process regression model is used as an alternative model and the uncertainty of the alternative mod-el is calculated quantitatively.Based on the normal random walk of the unmeasurable parameters,the leakage rate of the primary circuit is predicted.The results show that the Gaussian process regression model can calculate the uncertainty of the alternative model,and can accurately predict the leakage rate of the primary circuit in the case of small samples.
关键词
高斯过程回归模型/替代模型的不确定性/正态随机游走/一回路泄漏率
Key words
gaussian process regression model/the uncertainty of the alternative model/normal random walk/primary circuit leakage rate
维普
万方数据