1) Fuzzy unreliability
模糊不可靠度
2) Fuzzy reliability
模糊可靠度
1.
The Optimal Tolerance Distributing of Assemble DimensionalChains Based on Value Engineering and Fuzzy Reliability;
基于价值工程与模糊可靠度装配尺寸链公差优化分配
2.
Researches on the Fuzzy Reliability of the Petroleum Pipeline Systems;
输油管道系统的模糊可靠度研究
3.
On calculation of random-fuzzy reliability of the slope with circular sliding surface;
具有圆弧型破坏面的边坡随机-模糊可靠度计算
3) fuzzy probability
模糊可靠度
1.
The fuzzy probability of two typical structures in geomechanics engineering,underground diaphragm wall and retaining wall,is calculated by three representational membership functions and a probability density function for the performance function.
目前岩土工程中模糊可靠度计算时隶属函数的选取还没有一个统一标准,针对这种现状进行研究,选取了三种具有代表性的隶属函数,并将其分别应用于岩土工程中的两种典型结构:地下连续墙和挡土墙,通过模糊可靠度的计算以及比较分析,得出如何选取优化隶属函数的有益结论,对工程应用具有实际的指导意义。
2.
The calculation method of fuzzy probability is found by using some theory and methods of fuzzy mathematics.
将振动输送机主振弹簧的强度视为模糊变量,弹簧的剪切应力视为随机变量,运用模糊数学理论和方法,建立其模糊可靠度的设计计算方法,并对振动输送机主振弹簧的实例进行了计算分析。
3.
The method used in the paper is also applied to research the fuzzy probability of other type of fuzzy restriction conditions in fuzzy probability optima.
提出了一种模糊约束条件隶属函数的确定原理 ,并以应力为随机变量、强度为模糊变量的典型组合给出了具体确定方法 ,进而解决了该情况下模糊可靠度的计算问题。
4) fuzzy reliability optimum design
模糊可靠度优化
1.
By the aid of the fuzzy mathematic theory and the optimization methodology,a fuzzy reliability optimum design model and the corresponding computation method were developed in this paper.
考虑结构的可靠度为模糊可靠度,优化的约束函数为模糊约束,利用模糊数学理论和优化设计方法建立了复合材料层合板的模糊可靠度优化模型,并提出了相应的计算方法。
5) Fuzzy Reliability Range
模糊可靠度范围
1.
In this article,the cylinder testing pressure and safe factor is researched from controlling its fuzzy reliability range of bursting strength of ultrahigh pressure cylinder during pressure test and normal operation based on the reliability design theory and methods of random-fuzzy probability model.
文章基于随机-模糊概率模型的可靠性设计理论与方法,从控制超高压圆筒爆破强度在耐压试验和正常操作时模糊可靠度范围的角度,对其试验压力和安全系数进行探索。
2.
The relationship between external testing pressure coefficient and the two factors, the buckling safety factor and the fuzzy reliability range was quantitative analyzed based on the random-fuzzy probability model.
研究表明:1)如果要求钢制薄壁圆筒临界失稳强度的模糊可靠度范围,在外压气压试验、液压试验和正常操作时分别为0。
6) fuzzy stochastic reliability
模糊随机可靠度
1.
By using L-R type fuzzy numbers to describe the mean value and variance of stochastic numbers,a fuzzy stochastic reliability analysis model is derived.
在一次二阶矩法的基础上,推导了计算模糊随机可靠度的具体公式。
2.
Considering the fuzzy uncertainties of the parameters of stochastic variables,a fuzzy stochastic reliability analysis model is derived based on first-order second-moment method (FOSM).
利用分解定理,取一系列λ截集,将模糊数转换为一系列区间数进行运算,得到了一种模糊随机可靠度的计算方法。
3.
For simplicity,the fuzzy stochastic reliability is calculated by transforming fuzzy numbers into a series of interval numbers via λ cut set theory.
在一次二阶矩法基础上,推导了基于瑞典条分法及毕肖普法计算模糊随机可靠度的具体公式。
补充资料：几何学模糊度
几何学模糊度
放射学术语。由X线管有效焦点大小，即由几何投影因素所产生的照片模拟、影像边界的不锐利程度，又称半影。几何学模糊度(Hf)是X线成像技术中影像模糊的最主要成因。几何模糊度与有效焦点(F)成正比，与物-片距(c)成正比，与靶-物距成反比。若用公式表示，几何学模糊度的值为：Hｆ=〓〓ｃ〓〓ｂ-ｃ〓〓F(b代表靶-片距)。焦点的大小对产生影像半影的关系很大，用小焦点或微焦点可提高照片的清晰度。例如，放大摄影时C值增加，若用小焦点X线管投照则可弥补由于物-片距增加而增加的几何学模糊度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条