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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
It introduced the technologies on the visualization of structural reliability, such as Finite Element software with graphical user interface, prediction model of fatigue life and implement method.
介绍了结构可靠性可视化相关技术,如通用有限元软件、结构可靠性可视化实现方法等。
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。
An improved method of stress analysis about bolt screw with interference fitting is provided as the first step of fatigue life-prediction for the joint.
针对过盈螺纹的疲劳寿命估算进行了工作,求解应力是寿命估算的第一步。
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。
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。
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。
Finally, both the rig test and fatigue life prediction are carried out to validate the effectiveness and reliability of optimized design of transmission mount bracket.
结合台架试验和疲劳寿命预测对变速器悬置支架疲劳寿命进行分析以验证改进方案的有效性和可靠性。
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 failure modes of the coatings can be predicted if the contact stress and the fatigue life are designated. And the prediction accuracy of the failure mode is above 65%.
建立了涂层失效模式的判别准则,当指定接触应力和疲劳寿命时可以预测涂层的失效模式,且预测正确率在65%以上;
Therefore, the difference of fatigue property among different regions on a DS turbine blade should be considered in blade structure design and fatigue life prediction.
这说明叶片不同部位的材料疲劳性能差异明显,在定向凝固涡轮叶片的结构、寿命设计中,需要考虑这种差异。
The result provides a theoretical reference for fatigue life prediction of an aircraft structure with three-dimensional widespread cracks in complicated environments.
预测结果为复杂环境中三维广布裂纹飞机结构的寿命评估提供了参考。
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。
For years, in the field of fatigue resistance and fatigue life prediction of the concrete structure, domestic and foreign experts have made a number of valuable academic and practical achievements.
多年来,在混凝土结构的疲劳性能和寿命预测方面,国内外专家取得了许多具有学术价值和推广使用价值的成果。
Finally, both the rig test and fatigue life prediction are carried out to validate the effectiveness and reliability of optimized design of transmission mount...
结合台架试验和疲劳寿命预测对变速器悬置支架疲劳寿命进行分析以验证改进方案的有效性和可靠性。
Finally, both the rig test and fatigue life prediction are carried out to validate the effectiveness and reliability of optimized design of transmission mount...
结合台架试验和疲劳寿命预测对变速器悬置支架疲劳寿命进行分析以验证改进方案的有效性和可靠性。
应用推荐