For reliability analysis of implicit limit state function, an improved line sampling method is presented on the basis of sample simulation in the failure region.
针对隐式极限状态方程的可靠性分析，提出了一种基于失效域样本模拟的高效线抽样法。
Key techniques of on-line concentrated sampling are analyzed and relations of accumulator precharge pressure and pressure-retaining results are studied.
分析了实现在线浓缩取样的关键技术，研究了蓄能器预充压力和采样筒保压效果的关系。
Aiming at the issues, the paper presents two methods, the multi-channel non-gapped sampling technique on-line and recursive FFT algorithm.
针对上述问题，本文提出了两种方法：在线多通道无缝采样分析技术和递推fft算法。
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