查询词典 reliability

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。

Secondly, in spite of the reliability of software and control system, the mechanical system reliability of automatic yarn evenness tester is researched using FTA, and fault trees of each unit and system are established by analyzing its structure and function. According to system reliability theory and events probability, the mechanical system fault tree is analyzed by means of qualitative analysis and quantitative calculation, the system weak parts are found , and the ways are put forward to improve the mechanical system reliability.

其次，在不考虑软件及控制系统可靠性的情况下，利用故障树分析的方法，对全自动条干仪机械系统可靠性进行了分析研究，通过对其结构、功能的分析，建立了单个单元的故障树和系统的故障树；并根据系统可靠性的原理和事件发生的概率，进行了定性分析和定量计算，找出了系统的薄弱环节，提出了提高机械系统可靠性的途径。

On the basis of analyzing forecast model of current software reliability synthetically, reliability analysis and evaluation for the control software of servo system, and for the operating and aiming calculation software of fire control system of long-range rocket gun system are also carried out. Theoretically analyzing and designing the reliability qualification tests for the long-range rocket gun weapon system are conducted in this paper, and the correlative results of reliability tests during the development of the weapon system are counted and researched synthetically.

针对目前武器系统软件可靠性存在的问题，分析了影响武器系统软件可靠性的主要因素；结合武器系统软件寿命周期各阶段的工作内容、要求及质量变化规律，研究分析了提高武器系统软件可靠性的设计方法和测试与评估模型，在综合分析了现行软件可靠性预测模型基础上，对远程火箭炮随动系统控制软件、火控系统操瞄解算软件进行了可靠性分析与评估。

Reliability models are reliability block diagram and mathematics models that built to predict and evaluate reliability of products.

可靠性模型是指为预计或估算产品的可靠性所建立的可靠性框图和数学模型。

Combining case history with point reliability solution, applied narrow bound method to calculate general failure probability of composite foundation improved by Dry Jet Mixing, appraised system reliability, precede sensitivity analysis with correlation coefficient of main failure modes in system reliability solution.

3结合工程实例，在点可靠度求解的基础上，运用窄界限范围法求解粉喷桩复合地基系统总失效概率，评价其系统可靠性，并对系统可靠度求解中主要失效模式间的相关系数进行了敏感性分析。

In this paper, a theoretical analysis of system reliability, application Riverstone Blue Series software company BlockSim, the establishment of ZPW-2000A system reliability block diagram and fault tree model, the reliability of the parameters of each module is expected to make through to Blocksim simulation, the relevant parameters.

本文从理论上对系统进行可靠性分析，应用美国瑞蓝公司系列软件中的BlockSim，建立ZPW-2000A系统的可靠性框图与故障树模型，对各个模块的可靠性参数做出预计，通过Blocksim进行仿真模拟，得到相关参数。

For the first time, on the basis of the principle design scheme of the system, the reliability analysis of the new type of electromechanical fluid drive system and its subsystem is carried out overall and systematically, which contents include reliability model building, reliability prediction and distribution, failure mode and effect analysis , fault tree analysis of the straight-rotary ball actuator.

基于本文提出的系统原理设计方案，首次对飞行器新型机电液驱动系统及滚珠直旋作动器子系统进行了较全面、系统的可靠性分析，包括系统与子系统可靠性建模，系统的可靠性预测与分配，系统的失效模式及影响分析，系统的故障树分析等，并结合给定设计指标对现有系统和子系统的可靠性进行了分析与评价，指出了提高系统及部件可靠度的措施。

In view of the reliability characteristics and impact factors of mining equipment,this paper builds the reliability life indicators for hydraulic support system,and calculated the reliability life by the membership function method.

针对综采设备可靠性特点及其影响因素，构建了液压支架的可靠性寿命指标体系，并采用隶属度函数方法进行了可靠性寿命的计算，其计算结果与生产实际有较好的一致性。

At the beginning, an engineering method called semi-empirical reliability estimation method is introduced. Then, a detailed introduction of the bootstrap method, which has been widely applied to small sample reliability assessing since it was proposed in 1979, is made immediately. At last, a promoted virtual sample expanding method, that the reliability test sample size is expanded from 2-3 to 10, is proposed on the basis of predecessors research results. And the new method associated with bootstrap method is used to assess the test life lower limit in the case of logarithmic normal distribution.

首先阐述了处理极小子样可靠性评估问题较合理的一种工程处理方法—半经验可靠性评估方法，随后详细介绍了近年来在小子样可靠性评估领域发展迅速的Bootstrap方法，最后在前人研究成果的基础上提出了将样本数从n=2～3虚拟增广至n=10的虚拟增广样本推广方法，将该方法应用于服从对数正态分布的寿命总体，利用Bootstrap方法得到了试验寿命下限的估计，并与已有的半经验可靠性评估方法的结果作了比较分析。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。