A new random finite element method for solving repeated eigenvalues problems involving beams' structures with stochastic stiffness was proposed.
利用一种新的方法来研究具随机刚度梁结构的重特征值问题。
Uncertain factors of foundation subsidence were put forward. Direct probability method and random finite element method for foundation subsidence analysis were presented.
提出了地基沉降分析中的不确定因素，简述了地基沉降的直接概率分析法、随机有限元法。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
推导了交变载荷下弹塑性随机有限元的迭代格式，计算了局部多轴应力应变的随机响应。
A new spectral stochastic finite element method to solve mechanical problems involving material variability and random load is proposed.
提出了一种新的谱随机有限元分析方法——递推求解方法。
A finite element (fe) method for the prediction of the equivalent heat transfer parameters of the composite material with random multi-scale grains was presented.
针对预测多种尺度颗粒随机分布复合材料等效热传导参数的难点，提出了一种多尺度有限元方法。
The dynamic stochastic finite element method, a new random numerical method, is developed for analyzing the stochastic dynamic response of structures with random parameters.
本文提出分析不确定性结构随机动力响应的一种新的数值方法——动态随机有限元法。
According to wave motion theory, finite element mesh size satisfying the needs of engineering calculating precision is relevant to the upper limit of frequency range of random (response) problems.
根据波动理论，满足随机响应工程计算精度要求的有限元网格大小与待求高频随机响应问题的频率范围上限有关。
In this paper, vibration induced by flood release of Dongping Arch Dam is studied fully by a three-dimensional finite-element random vibration method.
采用三维有限元随机振动法对洞坪拱坝泄洪诱发振动进行了较为深入的研究。
In this paper, the component mode synthesis, combined with the perturbation and stochastic finite element, is used to study the random eigen problem of large and complicated structures.
采用子结构模态综合和摄动随机有限元相结合求解工程结构的随机特征问题。
Based on the assumption of random installation deviation, the finite element met hod analyzing the initial displacement and stress of grid structures was set up.
基于随机安装偏差模式，利用空间有限单元法和概率方法，分析了网架结构由于安装偏差引起的初始应力和初始位移。
The finite element method of random land subsidence and the reliability analysis of random soil parameter are furthermore researched.
进一步研究了随机地面沉降的有限元解法及随机土参数的可靠性分析。
The finite element analysis methods for plate-beam composite structures with random physical parameters under the random loads action are studied.
以随机物理参数板梁组合结构为对象，研究了其在随机力作用下的有限元分析方法。
Using this method engineers are able to estimate the errors of structural natural frequencies caused by random structural parameters in finite element analysis.
用有限元方法分析结构固有频率时，利用这个方法能正确估计由于结构参数的随机性而产生的误差。
Stochastic finite element method for random thermal creep stress in massive concrete structures is presented.
首次尝试将随机有限元法引入大体积混凝土结构随机温度徐变应力的计算。
In this paper, the dynamic responses of jacket-type offshore platforms under random sea waves is studied, and the finite element of spatial frame is adopted.
本文分析研究了导管架平台结构在随机波浪作用下的动力响应问题。采用空间刚架单元建立有限元方程。
The problem of achieving stable reliability analysis of piezoelectric trusses with random parameters was studied on the basis of the finite element analysis method and stable secular equation.
在有限元分析方法基础上，基于稳定特征方程对随机参数压电桁架结构进行稳定可靠性分析。
Stochastic finite element method for random thermal creep stress in massive concrete structures is presented.
大体积混凝土结构的徐变应力受多种随机因素的影响。
This paper deals mainly with the analysis method of the finite element and reliability for truss structures with random parameters under random loads action.
对随机参数桁架结构在随机荷载作用下的有限元分析方法进行了研究。
Stochastic finite element method for random thermal creep stress in massive concrete structures is presented.
用有限元法进行钢筋混凝土结构徐变分析时，必须应用徐变应变增量方程。
Based on recursive stochastic finite element method (RSFEM), a random damage identification method for frame and infilled frame structures was developed.
将递推随机有限元法与验算点法结合，提出了一种基于递推随机有限元法(RSFEM)的随机结构可靠度指标计算方法。
FORTRAN program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the mesoscale structured finite element grids of concrete is developed.
在生成三维随机球形骨料模型的基础上，研究了形成随机凸多面体骨料模型的方法，并利用FORTRAN语言编制凸多面体骨料生成程序和细观有限元网格剖分程序。
Furthermore, a finite element model is established to predict the responses under random excitations. The model and the numerical results are validated experimentally.
建立了随机振动响应分析有限元模型，并对模型进行了实验验证与结果分析。
Based on the pseudo-excitation method and the finite element method, a new random vibration method is developed for predicting buffeting internal forces of long-span Bridges in the frequency domain.
基于虚拟激励法和有限元法，在频域建立了一种新的桥梁抖振内力响应分析的随机振动方法。
And a simulation with finite element method of the electromagnetic scattering from 3-dimensional random rough surface is shown for the accuracy and efficiency.
通过有限元法数值模拟三维随机粗糙表面的电磁散射，验证了方法的精度与效率。
And a simulation with finite element method of the electromagnetic scattering from 3-dimensional random rough surface is shown for the accuracy and efficiency.
通过有限元法数值模拟三维随机粗糙表面的电磁散射，验证了方法的精度与效率。
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