查询词典 reliability coefficient

The principle of reliability calculation is analyzed and by applying first order second moment method in structural reliability analysis of wing wall tunnel portal ,satisfying conditions acquired.

分析了可靠度的计算原理，介绍了用一次二阶矩阵法计算翼墙式隧道洞门的过程，提出了可靠度指标的满足条件，指出采用一次二阶矩阵法分析结构可靠度能够满足工程要求。

Finally, stochastic vibration analysis of a two-floor frame structure by blasting seismic action is done by finite element program ANSYS. In order to contrast, that by nature seismic action is also done here, and displacement field, velocity field and stress field of this two kind of condition are obtained, and differences of the structure damage mechanics by two kind of action are analyzed. Dynamic reliability analysis of the two-floor frame structure is done using of simulation results, obtaining the safe reliability level of the structure by seismic action, and seismic safety evaluation of the frame is completed.

最后，运用有限元程序ANSYS对爆破地震动作用下一个两层框架结构进行了随机振动分析，为了进行对比，这里也对结构受天然地震动作用进行了随机振动分析，得到了两种地震动作用下结构响应的位移场、速度场和应力场的变化情况，分析了爆破地震动和天然地震动对建筑结构物破坏机理的不同；应用数值模拟的结果对该两层框架结构进行了动力可靠性分析，得到了其在地震动作用下的安全可靠度，完成对该框架的爆破地震安全性评估。

Using the smart card recorded data, the travel rate time per trip can be calculated, and the regulation of travel rate time by taxi can be fond from the cumulative taxi datum. In this paper, three new reliability indices and methodologies about travel rate time are developed, and Beijing transportation network reliability is analyzed by using these indices and the taxi trip datum.

本文以出租车车载智能卡采集的载客行程时间数据为基础，研究提出新的单位距离行程时间可靠性评价指标和方法，并使用该指标和方法对北京市路网的可靠性水平进行实例评价。

The models of traveling time reliability and waiting time reliability of transit have been established.

针对城市公共交通系统的行车时间和行车间隙易受影响的特点，以整个公交出行链为落脚点，从出行者的角度对公交的运行时间和乘客的在站等车时间进行了研究，建立了公交的运行时间可靠度、等候时间可靠度模型。

Oil logging tool ; reliability ; reliability ensuring techniques ; thrice designing tech niques ; antivibration designing method

石油测井仪器；可靠性；可靠性保障技术；三次设计技术；抗振设计方法

Adopting the AFOSM method of reliability analysis, assuming the unit weight, co hesion and internal friction are mutually independent stochastic variables, thei r influence on the reliability of the tension resistance of the anchor rod has b een analyzed.

采用可靠度分析的改进一次二阶矩法，假定粘性土的重度、粘聚力、内摩擦角为互相独立的随机变量，分析了它们对于锚杆抗拉力可靠性的影响。

This article studies the evaluation methods of spaceflight product′s reliability, and take cosmonaut system as an example, via comparison of a few systemic reliability models and of several evaluation methods, present classical evaluation method and Bayes method for series-wound model, shunt-wound model, voting model, non-work standby model and conjunct model.

本文研究了航天产品可靠性的评估方法，以航天员系统为例，通过对几种常用的系统可靠性模型与评估方法的分析比较，给出了串联模型、并联模型、表决模型、旁联模型与和联模型5种系统可靠性模型的经典评估方法与Bayes评估方法。

From all the work a set of complete methods of analyzing and calculating fatigue reliability of structure systems are put forward. The fatigue reliability of structure systems can be calculated by searching failure modes and using the series-wound model composed of the failure modes.

由此针对结构系统疲劳破坏的特点，本文提出了一套完整的结构系统疲劳可靠性的分析和计算方法，该方法通过搜索结构系统的主要失效模式，应用失效模式组成的串联模型计算结构系统的疲劳可靠性。

The series system and parallel system are the most typical and the important reliability modes among all the reliability systems.

串联系统及并联系统是可靠性理论中的两个最重要的模型。

In chapter 3, a reliability-based optimization method based on kriging reliability analysis and semi-infinite programming is developed.

本章以kriging模拟技术为基础结合半无限规划方法，将随机变量和非随机变量等同考虑，实现了结构可靠性分析和结构优化设计的一体化，在保证计算精度的同时使计算效率得到较大提高。

The second is to cut a mere 100 calories from your diet , which is the equivalent of a tablespoon of butter.

第二个就是从你的饮食中减少一百卡路里，只是相当于一大汤匙的黄油。

This is where the Rorschach test comes in.

现在，罗氏测试就出现了。