Fatigue reliability interference model is established based on fuzzy cumulative damage of components, then general formula and simulation methods of fuzzy reliability estimation are derived. 建立了基于模糊累积损伤的构件疲劳可靠性干涉模型,导出了模糊可靠度评定的一般公式和仿真方法。
And based on the fatigue cumulative damage probabilistic model, the part's fatigue reliability and life can be predicted. 然后用疲劳累积损伤可靠性模型进行零件疲劳可靠性设计计算。
Based on the concept of cumulative probability and cumulative frequency, a multi-state reliability model for reliability evaluation of HVDC transmission system is established and the equations of series-parallel connection combination for capacity model are derived. 根据累计概率和累计频率的思想建立了直流系统可靠性评估的多状态容量模型,推导了容量模型的串并联组合公式。
To verify it, the defect sizes and the NDT experimental data are sup-posed to be subordinated to the lognormal cumulative distribution, and the theoretical formula of probability of de-tection ( POD) and reliability index are established. 为了对其进行验证,借助缺陷尺寸、检测数据对数正态分布模型,建立了狭义可靠性研究中缺陷检出率(POD)及其可靠性指标β的数学表达式。
On the basis of Corten Dolan model and Haibach model the dual-dam model was proposed from the theory of cumulative fatigue damage and the theory of reliability. 在柯特-多兰模型和海巴赫模型的基础上提出了双堤坝模型,然后用累积疲劳损伤理论和可靠性理论对某柴油机曲轴进行了可靠性优化设计。
After studying in depth the statistical characteristics of fatigue cumulative damage D ( t) and critical cumulative damage Dc, a new dynamic interference model for the damage statistical analysis and the fatigue reliability analysis is presented. 在研究累积损伤及临界累积损伤统计特性的基础上,提出一新的动态干涉模型进行疲劳累积损伤统计分析和寿命可靠度分析。
Secondly based on the single ( deformation or cumulative energy) and double ( deformation and cumulative energy) fuzzy damage criteria, the each fuzzy random dynamical reliability of a multi-degree-of-freedom structure subjected to earthquake is analysed. 基于单参数(变形或能量)及双参数(变形和能量)的模糊破坏准则,分析了抗震结构的模糊随机动力可靠性。
In this paper, reliability analysis method of point-supported curtain wall under wind load has been proposed based on Monte Carlo method. The cumulative distribution function and reliability of the structural peak displacement under different wind distribution models are obtained. Some important conclusions have finally been drawn. 基于蒙特卡罗法,提出了点支幕墙体系抗风挠度控制可靠性分析方法,得到了不同风压分布模型下幕墙最大位移的累积分布函数和抗风可靠度,并总结出一些重要结论。
Based on a linear degradation hypothesis for residual strength, a probabillistic linear cumulative damage model has proposed by means of stress-strength interference theory, and a formula of calculating critical damage with a given reliability has presented. 文中以强度线性退化假设为基础,借助应力&强度干涉理论构造了一个线性累积损伤的概率模型,给出了满足一定可靠度的损伤临界值公式。
Study on the Miner Linear Cumulative Damage Reliability Model for 16 Mn Steel with Welded Joint 16Mn钢焊接接头的Miner疲劳累积损伤可靠性模型研究
The dynamic method of producing GOR and the cumulative production one of solution gas for computing gassed-out volume in the reservoirs are proposed out. The reliability of the two methods are proved by practice. 文章提出油藏生产气油比动态法和溶解气累积产量法计算气顶油藏气窜气量,通过实际应用,证实了这两种方法的可靠性。
Following the cumulative fatigue damage theory, the random time-dependent reliability of CSP under wind-induced vibration has been calculated. 利用疲劳累积损伤理论计算了风荷载作用下悬索跨越管道的随机时变可靠度。
Based on Bayesian statistical theory, building a mathematical model of the cumulative failure probability, and based on least-squares method for solving a two-parameter Weibull distribution of the two unknown parameters, getting the reliability of mathematical models of bearing. 基于贝叶斯统计数据理论,建立累积失效概率数学模型,依据最小二乘法求解出二参数威布尔分布的两个未知参数,得到轴承可靠性数学模型。
Analyzing testing data of chain tension, fatigue cumulative damage change of the plow chain is got under different cutting depths, and it accords with fatigue cumulative damage change of plow chain by simulating dynamic model. It provides references for reliability analysis of plow chain. 分析刨链张力实验数据,得到不同刨深情况下的刨链疲劳累积损伤规律,与通过动力学模型仿真得到的刨链疲劳累积损伤规律一致,为刨链可靠性分析提供了依据。