中文摘要：

对无失效数据（ti，ni）在ti时刻的失效概率pi=P{T〈ti}的先验密度的核为（1-pi）^k/2-（1-pi）^k时，给出了pi的Bayes估计，并由此得到了无失效数据可靠度的估计。最后，结合实际问题进行了计算。结果表明，利用该估计方法所得结果符合经验信息。

英文摘要：

In this paper, when failure probability Pi = P{ T 〈 ti} prior density kernel of zero-failure data （ti,ni ） are （1-pi）^k/2-（1-pi）^k in time ti, the Bayesian estimation ofpi was obtained. Then the reliability estimation of zero-failure data was obtained. Finally, calculation was performed regarding to practical problem. It turns out that the proposed method accords with the engineering priors.