Based on the first order eigenvalue sensitiveness analysis and linear estimation, this paper further suggests a second order eigenvalue sensitiveness analysis method.
本文在一阶灵敏度分析及线性估算的基础上，进一步提出二阶灵敏度方法。
The first-order second-moment method is fundamental in structural reliability analysis, its accuracy depends upon the nonlinear extent of performance functions around checking point.
一次二阶矩方法是结构可靠度分析的基本方法．一次二阶矩方法的计算精度依赖于验算点附近功能函数的非线性程度。
Based on the second-order perturbation technique, the stochastic finite element method (SFEM) of the strength analysis of the turbine blade is introduced in this paper.
本文基于二阶摄动技术研究叶片强度分析的随机有限元方法。
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