可靠性理论中,可靠度函数及其反函数通常都是未知的,需要依据样本进行估计。
In the reliability theory, reliability function and its inverse function are usually unknown and need to be estimated by using sample.
从汽车制动系统的失效特点及制动系结构的特殊性出发,提出了汽车制动系统可靠度函数的表达式。
According to the Character of the systems failures and structure, the reliability function of the brake systems of motor vehicles is presented in this paper.
评述了灰色预测方法,概率统计方法,人工神经网络方法和可靠度函数分析四种国内外正在研究和使用的方法。
A review is made of the four methods being studied and used in China and other countries: gray prediction, probabilistic statistics, artificial nerve network, and functional analysis of reliability.
通过分析金属化膜脉冲电容器的退化失效机理,利用该竞争失效模型,对金属化膜脉冲电容器进行了可靠性分析,确定了该型电容器的可靠度函数。
Then, by analyzing degradation mechanism of metallized-film capacitor, this paper presents a life distribution model of metallized-film pulse capacitor using the models.
该模型可用于含初始缺陷或意外损伤的螺旋桨叶无限寿命可靠性分析和设计,得到桨叶可靠度与初始裂纹尺寸之间的函数关系式。
The model is applicable to the reliability analysis and design of infinite life for propeller blades or other structural members with initial defects and accident damage.
介绍了道路权重的各种类型、路阻函数模型、交叉口延误模型和路网可靠度的研究成果。
Then it introduces the research fruit of road weight types, road impedance function model, intersection delay model, and network reliability.
该函数既可用于滑坡稳定分析中安全系数的计算,又可用于滑坡稳定分析中的可靠度计算。
The function is not only used for the calculation of safety coefficients but also the calculation of reliability in the stability analysis of landslide.
结构可靠度分析的核心是计算预定义功能函数的失效概率。
Structural reliability analyses seek to calculate the failure probability of a predefined performance function.
提出了简单易行的模糊安全事件隶属函数定义方式,完善了模糊可靠度计算理论。
Advising simplicity and expediency definition mode about membership function of fuzzy strength, completing fuzzy reliability calculation theory.
由此给出了人误概率的可能性分布函数,建立了基于人误概率可能性分布的结构模糊随机可靠度分析模型。
In this paper, the analysis model of structural fuzzy-random reliability of considering human error probability possibility distribution function is derived.
解决这个问题的关键,是给出了抗震结构的造价和可靠度间函数关系的估计方法。
The key point of solving this problem is to give an estimation procedure to set up the relationship between aseismic structural investment and its reliability.
基于极限状态函数矩估计的失效概率计算,提出一种新的可靠性灵敏度分析方法。
Based on the moment estimation of limit state function for calculation of failure probability, a new reliability sensitivity analysis method is presented.
阐述随机场理论在进行地基可靠度分析中的作用,指出合理确定方差折减函数对地基可靠度分析具有重要意义。
The key to application of random field theory to reliability analysis is how to combine the reduction function of variance obtained by the random theory with the reliability theory.
可靠性应重新定义为一个关于应用复杂度,测试有效性和操作环境的函数。
Software reliability should be redefined as a function of application complexity, test effectiveness, and operating environment.
本文探讨了功能函数不明确结构四阶矩可靠度的分析方法。
In this paper, the four-moment reliability analysis method for perfopmance function implicit structure is discussed.
质量统计是不可靠度的矩估计的严格增加函数。
The quality statistic is a monotonous function of a method of moments estimator of the unreliability.
这些方法的基本思想都是构建功能函数的近似模型,然后基于近似模型进行可靠度分析。
However, the basic thought of these method is to construct a approximate model of performance function and then perform reliability analysis on it.
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。
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.
在结构优化的目标函数中,不仅应考虑结构造价,而且应考虑结构服役期的损失期望。为此,我们定义了抗震结构模糊可靠度的概念。
Not only structural construction cost but also loss expectation in the service life of the structure should be considered in the objective function of structural optimization.
提出了系统结构函数的递推分解格式,建立了网络抗震可靠度的递推分解算法。
This paper suggests a recursive decomposition form of system reliability structure function and establishes a recursive decomposition method for large-scale network seismic reliability analysis.
应力、强度概率密度函数确定可采用应力-强度干涉模型,用公式或数值积分求可靠度。
If probability density functions of stress and strength are definite, stress strength interference model can be used to calculate reliability using formulation or numerical value integration.
给出梁桥承载力可靠度功能函数及推导功能函数中结构抗力理论(或设计)概率模型。
And the state function on bearing capacity reliability of beam-bridge is presented and the structure resistance theory (or design) probability model in state function is deduced.
响应面有限元的可靠度计算是采用有限元数值模拟来解决功能函数不能明确表示的结构可靠度计算问题的一类方法,对于大型复杂结构的可靠度分析有重要的意义。
Reliability calculation based on response surface FEM method utilizes the FEM numerical simulation to solve the reliability problems in which the analytical performance function can not be given.
利用概率分析方法研究在实故障源作用下,由函数单元构成的控制系统的可靠性,并给出了系统不可靠度的下界估计。
The reliability of the systems affected by the failure sources is studied and a lower bound of the unreliability is presented.
对一典型梁式渡槽进行各种失效模式的分析,建立了相应的功能函数,并就本文算法与已有算法计算得的可靠度进行了比较。
The typical failure modes and reliability of a typical beam type aqueduct are analyzed. The system reliability of the aqueduct is discussed by using the proposed method and other methods.
计算熵密度函数时采用牛顿迭代法,从而解决了在分析基桩竖向承载力的可靠度时可能产生的迭代不收敛的情况。
The Newton iterative method is used in the calculation of entropy density function, by which the non-convergence issue in the calculation for the vertical bearing capacity of piles is solved.
该模型首先通过将功能函数进行非概率可靠性分析,然后将标准化区间变量空间所有区域的可靠度进行求和计算,从而给出结构的可靠度。
First, the performance function is analyzed by the non-probabilistic set-based reliability model, and then the reliability of all regions in the normalized interval variable space is summed up.
针对目前可靠度分配方法中忽略了损失费用与可靠度之间的函数关系的问题,分析给出了损失费用与机械产品可靠度之间的函数关系。
Aimed at the function relationship between damage cost and reliability that is ignored in recently optimal allocation of system reliability, it derived this function relationship.
针对可靠度计算问题中极限状态函数比较复杂或为隐式的情况,提出了一种基于支持向量回归的响应面可靠度计算方法。
On the complicated or implicit limit state functions in the reliability problems, a response surface method for reliability computation based on Support Vector Regression (SVR) is presented.
针对可靠度计算问题中极限状态函数比较复杂或为隐式的情况,提出了一种基于支持向量回归的响应面可靠度计算方法。
On the complicated or implicit limit state functions in the reliability problems, a response surface method for reliability computation based on Support Vector Regression (SVR) is presented.
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