欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
提出了一种针对一般非线性极限状态方程的时变结构可靠度分析方法．该方法首先将时变功能函数中的随机过程进行离散，获得多个不同时间段的静态功能函数．之后，将各功能函数在最大可能点处进行线性化，并运用全概率公式将其化简为一新的静态可靠度分析模型，该模型可运用传统的一次二阶矩方法进行高效求解．最后通过管状悬臂梁、十杆桁架、汽车发动机主轴3个算例验证了该方法的有效性．
英文摘要：
Time-variant reliability problems appear in the engineering practice when loads stochastically change or the material properties of the structure deteriorate in time. In this paper, a time-variant structural reliability analysis method for non-linear limit-state function is presented. In this method, the stochastic process in the limit-state function is first discretized. Each discretized limit-state function is linearized at the most probable point （MPP）, and it is further simplified into a time-invariant reliability analysis problem which is then solved by using the traditional first order reliability method （FORM）. Three numerical examples are analyzed to demonstrate the effectiveness of the present method.
同期刊论文项目
同项目期刊论文
A new nonlinear interval programming method for uncertain problems with dependent interval variables
A non-probabilistic structural reliability analysis method based on a multidimensional parallelepipe
Non-probabilistic convex model process: A new method of time-variant uncertainty analysis and its ap
Stochastic response analysis of the scaled boundary finite element method and application to probabi
Multidimensionalparallelepiped model—a new type of non‐probabilistic convex model for structural unc
A probabilistic and interval hybrid reliability analysis method for structures with correlated uncer
A new interval comparison relation and application ininterval number programming for uncertain probl
Multidimensional parallelepiped model-a new type ofnon-probabilistic convex model for structural unc
An evidence-theory model considering dependence among parameters and its application in structural r
Probability-interval hybrid reliability analysis for cracked structures existing epistemic uncertain
A time-variant reliability analysis method for structural systems based on stochastic process discre
A structural stress based critical plane method for multiaxial fatigue life estimation in welded joi
Quantitative thermographic methodology for fatigue life assessment in a multiscale energy dissipatio
New method for eigenvector-sensitivity analysis with repeated eigenvalues and eigenvalue derivatives
An improved multidimensional parallelepiped non-probabilistic model for structural uncertainty analy
期刊信息
位置：