在结构体系可靠度的计算中,一个急待解决的问题是结构构件或截面间的失效相关性问题。
During the calculation of reliability of structure system, failure dependency of the components or the sections is one of the key problems.
通过建立在条件概率基础上的体系可靠度公式,找出拱坝的最大可能失效模式与相应的可靠度。
Finally the possible failure mode and the corresponding reliability of the dam are obtained by the system reliability formula from the conditional probabilistic theory.
在高速和轻载工况条件下,打滑擦伤往往成为圆柱滚子轴承的主要失效形式,而表面粗糙度对轴承打滑损伤有很大的影响。
Under high speed lightly loaded conditions, skidding damage often becomes one of the main damage forms for cylindrical roller bearings while surface roughness has great effect on skidding damage.
失效致命度分析是研究工程机械优化设计、提高其可靠性的重要环节。
Failure criticality analysis is an important process to the research of construction machinery's optimal design and the improvement of its reliability.
通过对可增设单元进行重要度分析、并考虑地震环境下的失效相关性,讨论了冗余单元增设的概念性原则。
Through the importance analysis of added units and based on the failure related analysis under earthquake, the conceptual principle of adding frofix units are discussed.
提出了模糊结构体系主要失效模式的识别方法,和结构体系的能度可靠性分析方法。
An approach for enumerating the significant failure mode for fuzzy structures, and a procedure for possibilistic reliability analysis of fuzzy structural systems were given.
得到了多个随机变量的概率灵敏度、主要失效模式所对应的可靠度指标及其相应的状态等级。
The probability sensitivities between random variables are analyzed and the reliability index and the corresponding condition classes are obtained.
根据系统目标功能受损情况,归纳出三类毁伤效果指标常用的建模方法:效能模型、失效模型及基于毁伤的保障度模型。
According to the damage of target function, it induces three modeling methods for common use: efficiency model, invalidation model and guarantee degree model based on damage.
航空电子电气系统暴露于高强度辐射场(HIRF)环境下的误动作与工作失效等灵敏度问题,严重影响了飞行器的安全系统。
The susceptibility of aircraft electrical and electronic systems to malfunction or failure when exposed to HIRF presents a threat to aviation safety systems.
在储油罐系统可靠度计算中,采用条件关联系数来考虑各失效模式相关性的影响,进而得出储油罐系统可靠度估算值。
When calculating the system reliability of oil tank, conditional correlation coefficient is used to consider the failure dependence among various failure modes.
为了评估不同失效准则对基桩可靠度的影响,传统的方法是引入失效准则偏差系数。
A bias factor is commonly used to account for the effect of differences in failure criteria on reliability of pile foundations.
并通过对结构体系的失效概率直接进行调整,实现对现役结构可靠度的维修设计。
We achieve the maintenance design for existing structural reliability by direct adjusting the failure probability of a structural system.
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.
基于模糊失效准则建立了混凝土箱梁桥的可靠度计算模型,并计算了一座实桥基于模糊失效准则的可靠度。
On the basis of fuzzy failure criterion, model of reliability of concrete box-girder bridge is set up, and the reliability of existing bridge is calculated.
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.
子集模拟法在计算结构动力可靠度时适用范围较广,针对非线性结构小失效概率的计算效率较高。
Subset simulation is a general method for structural dynamic reliability computation, and it is especially efficient for small failure probability computation of nonlinear structure.
针对工程实际中大量存在的小失效概率问题,提出了基于子集模拟和重要抽样的可靠性灵敏度分析方法。
Reliability sensitivity algorithm is presented on the basis of subset simulation and importance sampling due to the small failure probability highly experienced in engineering.
在体系可靠度的计算中,一个急待解决的问题是结构构件或截面间的失效相关性问题。
During the calculation of reliability of system, failure dependency of the components or the sections is one of the key problems that need solutions.
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.
解决了螺杆在多失效模式相关时的可靠度计算问题。
Resolves the problem of steering screw's reliability calculation in multi-failure mode.
应用模糊数学的理论,对机械系统和多失效形式的零件进行了模糊可靠度设计,并给出了设计实例。
Applying the theory of fuzzy reliability, this paper introduces the fuzzy reliability design of the mechanical system and components with high invalidation. It also introduces some examples.
解决了螺杆在多失效模式相关时的可靠度计算问题。
Last. Resolve the problem of Steering Screw's reliability calculation in Multi-failure Mode.
为了简化结构体系可靠度的计算,有必要研究失效相关性问题。
In order to simplify the calculation of structural system reliability, it is necessary to study the problem of failure dependence.
潜艇耐压结构系统可靠性分析的算例表明,本方法可有效地解决非线性失效方程的工程结构系统可靠度的计算问题。
Examples for a submarine structure indicate that this method is practical and useful, and is especially suitable for reliability analysis with highly nonlinear failure surfaces.
文中建立了串联和并联失效相关系统可靠度的一般公式,并分析了失效相关的影响幅度。
The general expressions of reliability of series and parallel systems are deduced and the extent of effect of failure -dependence on the reliability is analysed.
并计算了与防水煤柱有关的可靠度指标、失效概率和安全系数。
This paper calculates reliability index, lose efficacy probability and safety coefficient corresponding to the width of different barrier pillar.
在同时考虑产品成本价值和全寿命期失效损失期望前提下,提出了以动态可靠度为控制参数的全寿命优化设计模型。
In consideration of cost and whole life loss expectation of product, the whole life optimization design model with control parameter of dynamic reliability is proposed.
特别是在体系可靠度的计算中涉及到了失效约束或者失效模式间的相关性问题。
The failure dependency of failure constraints or modes is involved during the calculation of reliability of system.
将K -终端剩余连通可靠度的概念推广到链路存在失效状态的网络模型上,并提出了计算该可靠度的基于RVR的蒙特卡洛方法。
The concept of K-terminal residual connectedness reliability is extended to the network with link failures and a Monte Carlo method based on RVR is proposed to estimate it.
常用的分析方法有失效树分析(FTA)和失效模式影响及致命度分析(FMECA)。
The analysis methods most in use have Fault Tree analysis (FTA) and Failure Model Effect and Criticality analysis (FMECA).
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