疲劳寿命估算。
Let the fuzzy theory be applied into the prediction of fatigue life-span so as to establish a prediction theory of fuzzy fatigue life-span.
将模糊理论应用于疲劳寿命预测中去，建立了模糊疲劳寿命预测理论。
The prediction of fatigue life is important for steel towers and so on, because for this type of structure wind load is regarded as the main load.
由于风荷载是钢塔架等钢结构的主要荷载，风荷载作用下上述结构的疲劳寿命预估因而是至关重要的。
The prediction of fatigue life, especially high-cycling fatigue life, of a solder joint is one of the most difficult problems in electronic industry.
最后，提出了简便预测这类结构的高周疲劳寿命方法，且预测结果与试验结果吻合较好。
Fatigue strength analyses, prediction of fatigue life and assessment about fatigue behaviors have important engineering background and particular theoretic value.
疲劳强度分析、疲劳寿命预报和疲劳行为的评估具有重要的工程背景和理论研究价值。
Then the effect of Stress Concentration and the Stress Gradient were introduced into the prediction of fatigue life through Correction Coefficient of Stress with the wider suitable life scope.
通过应力修正系数对危险点最大应力进行修正，将应力集中和应力梯度效应引入到寿命的估算中，因而扩大了传统的应力寿命法可适用的寿命范围。
There have been some fatigue life prediction methods in the recent decades, but most of them cannot explain some known fatigue phenomena.
最近，本文第二作者提出了一种海洋结构物疲劳寿命预报的统一方法。
This technology has important application value for fatigue life prediction of pressure vessel in use containing defects.
本文技术对于在役含缺陷压力容器的疲劳寿命预测具有重要的应用价值。
High temperature low cycle fatigue (HLF) life prediction models have great significance for design of high temperature structure under cycLic loading.
高温低周疲劳(HLF)寿命预测方法对于承受变幅载荷的高温构件的设计具有重要意义。
A calculation method used for fatigue life prediction of components under narrow band random loading is discussed in detail.
文中详细论述了机械构件在窄带随机应力作用下疲劳寿命预测的计算方法。
A numerical simulation technology of fatigue life prediction of pressure vessel based on cyclic J - integral is developed.
开发了一种基于循环J积分的压力容器疲劳寿命预测的数值模拟技术。
Number of failure cycles is calculated depending on fatigue life prediction equation based on the energy analysis.
通过基于以能量为基础的疲劳寿命预测公式预测焊点的失效循环数。
Domestic and international research of fatigue damage mechanism, test technique and fatigue life prediction of inservice railway steel bridges is summarized and forecasted.
本文对目前国内外有关钢桥的疲劳损伤机理、检测技术及疲劳寿命预测的研究做了总结和展望。
Based on fatigue life prediction theory, fatigue life curve of dangerous points of wheels under force of a certain locomotive was established.
根据疲劳寿命预测理论，建立了某机车车轮受力危险点在不同路况下的疲劳寿命曲线。
The Virtual fatigue design software and fatigue-life prediction method for structural reliability of mechanical parts are introduced.
介绍了机械零部件结构可靠性虚拟疲劳设计的软件及疲劳寿命预测方法。
Studying of fatigue crack growth under different spectrum loadings is very important for the reliable life prediction of ship structures.
研究裂纹在谱载荷作用下的扩展规律对可靠预报平台等结构物的疲劳寿命具有十分重要的意义。
It is shown that this predicting method by Grey-Markov Model was easy to implement, and which is a new method in fatigue life prediction of concrete.
证明了利用灰色马尔可夫链对混凝土疲劳寿命进行预测是一种行之有效的新方法。
The fatigue life prediction models will give better prediction by considering the influence of different loading paths upon the fatigue life.
在多轴疲劳寿命预测模型中考虑非比例加载路径对疲劳寿命的影响可以大大提高寿命模型预测的精确度。
Study of fatigue crack growth rate and fatigue life calculation under random loading is very important for the reliable life prediction of engineering structures.
变化载荷作用下裂纹扩展律和疲劳寿命的计算对工程结构的寿命的可靠预测是十分重要的。
Moreover, this paper lists both static and strain fatigue parameters of this material for material design, selecting and life prediction.
还列表给出车轮钢的全部应变疲劳参数和与之对应的静态参数，可供设计选材，寿命估算时使用。
This paper introduced the recent researching progress in the world, and introduced the important significance of fatigue life prediction in structure life design and damage limitation design.
简述了当前国内外在这方面的研究进展，以及疲劳寿命预测在结构寿命设计及损伤容限设计上的重要意义。
Fatigue life prediction from the initial crack size to failure based on long crack propagation at different zones of welded joint was made by using j.
以焊接处微观结构缺陷尺寸作为初始裂纹尺寸，采用基于裂纹闭合的全寿命预测模型，以焊接区域不同位置的长裂纹扩展速率曲线作为基线，利用J。
A sort of efficient calculation method was developed for fatigue life prediction under random loading.
研究了一种用于随机载荷下试件疲劳寿命预估的有效计算方法。
Therefore, it is necessary to evaluate the influence of overloads on crack growth rates for the fatigue life prediction of structures subject to variable amplitude loadings.
要准确预测结构在变幅载荷谱下的疲劳裂纹扩展寿命，必须研究超载对裂纹扩展的影响。
The time domain nonlinear dynamic analysis of a steel catenary riser was introduced for fatigue life prediction.
研究了钢悬链立管时域非线性动力分析用于疲劳寿命预估。
Bases on the aircraft structure fatigue life theory, consider the characteristics of small UAV, the model of fatigue life prediction for small UVA structure is established.
在飞机结构寿命理论的基础上，结合小型无人机机体结构特点，建立了小型无人机机体寿命分析方法。
As for notched specimen, the fatigue life prediction using fatigue factors of half-life section is the smallest.
对于缺口疲劳试样，则采用半寿命阶段的疲劳参数的预测结果为最小。
Used as a fatigue failure criterion, application of the model to the fatigue life prediction for the feeding spring of a medium calibre automatic naval gun proved to be comparatively satisfactory.
对数累积损伤模型作为—个失效判据，已在某中口径自动舰炮输弹簧的疲劳寿命预测中得到较满意的应用。
With the effective seam weld fatigue life prediction method, the fatigue damage and life of the seam weld under actual vehicle operating conditions can be calculated.
采用该方法可计算出真实运行工况下结构焊缝的疲劳损伤和寿命情况。
A multiaxial fatigue life prediction model was built by means of the proposed multiaxial fatigue damage parameter.
根据该参量，本文建立了多轴疲劳寿命预测模型。
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