查询词典 reliability coefficient

The research is comprised mainly of four aspects: bounds of network reliability; performability of network reliability; lumpability problems of network reliability models; fuzzy analysis methods of network reliability.

研究内容主要包括四个部分：网络可靠性界的计算、网络综合可靠性分析方法的研究、马尔可夫型可修网络系统中聚合问题的研究以及网络的模糊可靠性分析方法的研究。

The generalized reliability of single failure mode component and unit structure under different kinds of uncertainty factors is treated perspicuously and classified. Combined with the three class fortify standard of aseismic design code,the conception of reliability vector of structures and systems with intermediate state before failure is put forward, and the calculation model of reliability vector with three stage working modes of "safety-intermediate-failure" and the operation rules of reliability vector of the simple aseismic engineering systems composed by structures are established.

针对各种不确定性因素下的单失效模式构件和单体结构，进行了广义可靠性的明晰化分类处理，结合抗震设计规范的三级设防标准，提出了具有中介状态结构与系统可靠性向量概念，建立了具有"安全-中介-失效"三级工作模式的可靠性向量计算模型，及其由结构组成的简单抗震工程系统的可靠性向量运算规则。

From the lifespan of relay point of view, a reliability criterion was provided based on dynamic characteristics of anti-forces. Mathematical model of tolerance design with reliability was set up under usage of "stress-strength interference method", taken some critical dynamic characteristics as identification objects such beginning of contact separation speed, speed of collision and gag bit impact velocity. This model showed that lower values of characteristic parameters center and quantitative descriptively relationship between tolerance and product reliability. Multi-objective optimization model of relay tolerance distribution was completed when some factors such as reliability, processing costs and its feasibility into consideration. Based on Analytic Hierarchy Process to determine weight coefficients of various objectives, and usage of simulated annealing, this study performed optimal reliable tolerance allocation of space electromagnetic relay, and then key technology segments were analyzed, accompanying its course measured by controlling chart.

从继电器电寿命的角度，基于动态吸反力特性的配合提出了继电器的可靠性判别准则；在此基础上以触点分离初速度、触点碰撞速度以及衔铁碰撞速度等关键动态特性为判别对象，采用"应力-强度干涉法"建立了继电器可靠性容差设计数学模型，给出了下位特性参数中心值及其容差与产品可靠度之间的定量描述关系；综合考虑可靠度、加工成本及加工可行性等因素建立了继电器容差分配的多目标优化模型，基于层次分析法确定了各目标的权重系数，并采用模拟退火法实现了航天电磁继电器的可靠性容差最优分配；研究了继电器的关键工艺环节，并通过控制图对其过程能力进行了分析。

Based on the theory of mechanical reliability design, the reliability of tapered interference joint of HSK toolholder is analyzed, the reliability model is established, and the general formula for reliability computation is presented.

采用机械零件强度可靠性设计的方法，对HSK工具系统锥面过盈配合的可靠性进行了分析，建立了刀柄锥面过盈配合的强度可靠性模型，并且应用应力—强度干涉理论推导出了可靠度的计算公式。

In the light of the requirement to reliability of protective relayings for HVDC power transmission system, the reliability models for several typical redundant configuration schemes are built based on the principle of reliability analysis for unrepairable systems with the structure of series-parallel connection, and the reliability of various redundant modes are compared.

根据高压直流输电保护系统的可靠性要求，基于不可修复系统串并联结构的可靠性分析原理，建立了几种典型冗余配置方式的可靠性模型，比较了各种冗余方式的可靠性。

The reliability of dynamitic system can be dealt with from two aspects, according to the reliability concept of traditional geodesy:(1). the internal reliability, which is defined as the ability to detect automatically bias in the model, it is often described by the minimum detectable bias.(2). the external reliability, which is described as the influence of undetected bias on the parameter estimates.

按照传统大地测量概念，组合动态定位系统模型的可靠性分析需考虑两个方面问题：(1)内部可靠性，它描述动态定位系统模型自动探测模型粗差或的能力，亦即能够自动检测到多小的粗差；(2)外部可靠性，它描述未检测到的粗差对状态估计结果的影响程度。

Then, using nondeterminism analysis method, at the based of summering reliability basic theory and present reliability assessment method, aiming at the limits of present reliability analysis method, the improved response surface method of higher pile-column bridge pier structural system is presented for reliability calculation by introducing response surface method.

此外，采用非确定性分析方法，在总结可靠度基本理论及现有可靠性分析常用方法的基础上，针对现有方法的局限性，引入响应面方法，建立高桥墩-桩基结构体系稳定的改进响应面方法。

The thesis outspreads a systematic and ever in-depth exploring research work on some core problems such as how to sum up system reliability from all parts information of system reliability, how to quantify the parts information and how to make the most use of the parts information considering the parts information in the type of engineering reliability analysis and reliability tests samples.

本文围绕着如何能够充分利用和量化系统各层次可靠性信息，特别是工程可靠性分析信息，也包括可靠性试验信息，以及如何逐级向上综合出系统可靠度等核心问题，对'小子样'下的系统可靠性评估方法展开了系统全面、层层深入的研究探索工作。

Finally, summing up the dynamic reliability theory thinking over time variant effect about load and resistibility and the standard grading partition of reliability calculation by quantification combining reliability target, the practical means resolving existent aqueduct bridge structure existing reliability problem, and put outing the means is practical and feasible in relation existent aqueduct bridge structure.

本文最后总结了考虑荷载和抗力时变效应的动态可靠度理论，结合基于可靠指标定量计算的可靠性等级划分标准，提出了解决现有渡槽结构存在的可靠性问题的实用方法，并通过计算证明该方法对现役渡槽结构是实用、可行的。

The seismic disasters features and behavior mechanisms of the buriedwater supply pipeline are analyzed by synthesis and the breakage of thepipe joints caused by seismic wave propagation as main disasters mode isled into. The soil-pipe interaction, and the soil-pipe slippage arediscussed. Statistical experience method resulted from earthquakeinvestigations and theoretical methods based on reliability theory areintroduced. The reliability of buried pipeline is researched. The methodfor estimate connective reliability of network by means of Monte Carlesimulation technique and Breadth First Search method is introduced. Theconnective reliability of water supply pipe network is researched.

本文综合分析了地下供水管道的地震破坏特征和反应机理，引入了以接头破坏作为主要的破坏模式，并探讨了管土间的相互作用和滑移作用等问题；介绍了根据震害调查数据回归的统计经验法和基于可靠性理论的理论分析法，对地下管道的可靠性进行了研究；介绍了利用蒙特卡罗法和网络图论中的广度优先搜索法判定网络连通可靠度的方法，对供水管网的连通可靠性进行了研究；考虑到震害预测方法中的许多参数是随时间变化的，应用灰色理论和概率论，建立了基于GIS 的供水管网动态震害预测模型。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。