The sensitivity expression of system reliability index and the safety margins were presented in the stochastic structure systems.
给出了随机结构系统安全余量和系统可靠性指标的敏度表达式；
Encode of GA and genetic operators are improved, so they are more appropriate for reliability optimization of stochastic structure.
对遗传算法的编码、遗传算子进行了改进，使其更加适用于随机结构的可靠性优化。
The second step is to calculate the hydraulic conductivity tensor of karstic rock using the data from the stochastic structure model.
然后根据随机结构模型所反映出的裂隙和溶蚀洞穴有关参数计算渗透参数；
This method conquer the difficulty of the huge numerical computation of the traditional finite element method and an analytical analysis method of stochastic structure analysis is formed.
这样一来克服了传统的有限元数值方法计算量大的困难，确立了随机梁结构分析的一种解析方法。
On the base of above research, stochastic finite element method was adopted to attempt to analyse reliability of the piezoelectric truss structure.
在此基础上引入随机有限元法，对该桁架系统进行结构可靠性初探研究。
Based on the theory of stochastic finite element, the structural parameters of frame shear structure including stiffness and mass and damping are simulated to be stochastic variables.
以随机有限元理论为基础，将框剪结构的刚度、质量、阻尼等结构参数为随机变量。
Numerical example shows that stochastic meshless method has obvious advantages in the probabilistic structure and reliability analysis.
数值实例表明在随机结构分析与可靠性计算方面随机无网格法具有明显的优势。
According to lineation stochastic programming, an effective algorithm is put forward for searching structure principal failure mode.
根据线性随机规划法，提出了一种寻找结构主要失效模式的有效算法。
Therefore, it is necessary to make stochastic analysis of piezoelectric structure and evaluate its reliability.
因此，对压电桁架结构进行随机分析并评价其可靠性就显得非常有必要。
By solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame shear structure.
通过求解随机有限元的递推方程，得到框剪结构各层的地震动力响应均值和标准差历时曲线。
The spatial correlation functions of the regular distribution structure, quasi-regular distribution structure and stochastic distribution structure are calculated.
计算了规则分布结构、类规则分布结构以及随机分布结构的空间相关函数。
The optimal control and simulation method for systems with stochastic perturbation were investigated in the case that control effort is to be considered under internal model control (IMC) structure.
在内模控制（IMC）结构下对控制能量存在约束时一类随机摄动系统的最优控制及其仿真方法作了探讨。
A method to treat stochastic dynamic equation of complicated structure by means of modal truncation method and to compute response statistics of dynamic system in the time domain is presented.
本文提出了用模态截断法处理复杂结构的随机振动方程、及时域上计算系统随机响应的方法。
Since various load cases and every kind of stochastic interference, this kind of structure is fit for active control method for the purpose of keeping its shape.
由于载荷变化及各种随机干扰，为了保持精确的形状，这类结构宜采用主动控制。
It builds up a stochastic volatility interest rate term structure model to describe the behavior of financial market repo rate of national debt in China.
建立描述中国金融市场国债回购利率行为的随机波动利率期限结构模型。
Stochastic parameter sensitivity of SRM grain structure was analyzed based on viscoelastic stochastic finite element method(VSFEM) and polynomial regression model.
基于粘弹性随机有限元法（VSFEM）和多项式回归模型，分析了固体火箭发动机药柱结构的随机参数灵敏度。
Thirdly, assuming blasting seismic acceleration history is stochastic process, stochastic vibration response of structure is analyzed theoretically.
第三，将爆破地震动加速度时程作为随机过程，对建筑结构物进行了随机振动反应理论分析；
In this paper, the variable structure control for systems with measurement noises is considered. The concept of stochastic super-plane is presented.
本文研究了一种考虑状态量测噪声的变结构控制，提出了随机超平面的概念。
Theoretical analysis was conducted for the dynamic equation problem of non-classical damp of offshore platform structure under stochastic wave load.
运用复模态理论对考虑海洋平台结构与流体相互作用而引起的非经典阻尼问题进行了理论分析。
On the basis of stochastic theory of turbulent flow developed by the author, the mean structure of turbulent boundary layer flow near a plate is discussed in detail.
本文应用作者提出的紊流随机理论，全面讨论了平板边界层紊流的时均结构。
The controller has the following advantages: 1) It can control stochastic multivariable systems with arbitrary time delay structure;
该控制器具有如下优点：1）可以控制具有任意传输延时结构的随机多变量系统；
When the stochastic seismic response of the structures is studied, lots of the earthquake records fit for the selected site are necessary to be used for initial data for structure model analysis.
在研究结构的随机地震反应时，要用大量的符合场地条件的地震记录作为输入数据。
The stochastic finite element method is used to analyze the composite structural reliability. Here the laminate structure is made of unidirectional fiber composites.
运用随机有限元法，对单向纤维复合材料组成的层合板结构进行了可靠性分析。
A novel kiln burner was designed based on two phase stochastic separation model and flow structure theory.
基于两相流随机分离模型和流场组织原理，设计了一种新型窑炉燃烧器。
To carry out the dynamic response prediction of a large structure subjected to a stochastic wind field in time domain, it is required to simulate time histories of wind loads or the wind field.
为在时域进行大型结构的气动弹性动力响应分析，必须首先模拟该结构所受到的气动荷载或所处自然风场的时间历程。
In this paper, the basic stochastic FEM equations are developed and used to analyse the raliabity of a motorbike frame structure.
推导了随机有限元的基本方程并编制了计算机程序。
Chaos is a deterministic nonlinear structure, which is not a stochastic process, but sensitive dependence on initial conditions. Studies in numerous fields have shown the existence of chaos dynamics.
混沌是一种确定性的非线性运动，它不是随机的但对初始条件敏感依赖，许多领域的研究证实了混沌的存在。
The building response has been estimated using a stochastic approach and ignoring the effects of soil-structure interaction.
应用随机方法并略去土与结构相互作用的影响，文中已估计出建筑物的反应。
The building response has been estimated using a stochastic approach and ignoring the effects of soil-structure interaction.
应用随机方法并略去土与结构相互作用的影响，文中已估计出建筑物的反应。
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