为了提高轴承截尾时间点的可靠度估计的可信度与稳定性，在滚动轴承截尾试验中出现无失效数据时，提出了在每个截尾时间点的可靠度估计过程中引入前一个截尾时间点无失效样本的虚拟失效信息的可靠度计算方法。经实例分析证明，在不同超参数取值下，采用该方法得到的特征寿命和形状参数估计值波动最小，具有更好的稳定性。%In order to improve credibility and stability of reliability estimation for censored time point of bearings,when the zero -failure data appeared in rolling bearing censored test,the virtual failure information of zero -failure sample in previous censored time point is introduced during reliability estimation process for each censored time point.The exam-ple analysis proof that the estimation value of characteristics life and shape parameter has the smallest fluctuation under different hyper parameters,and the method is better than other methods in stability.
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