查询词典 S curve

According to the test data, the fatigue strength time-varying model with the deterioration of fatigue strength coefficient in S-N curve was put forward.

根据试验数据，提出S-N曲线中疲劳强度系数下降的疲劳强度时变模型。

The research made it possible to forecast the fatigue life of damaged materials, and the prediction was based on the S-N curve from the fatigue test of th

对反应器自增强损伤机理和疲劳损伤等问题的研究为超高压容器取材、安全性设计以及确保高压容器长期、稳定和安全运行有着建设和指导意义。

Finally, the service life of the valve was estimated based on the fatigue life curve and an improvement of the valve structure was also presented, it could effectively alleviate the stress concentration and prolong the service life.

依据泵阀疲劳寿命曲线，对泵阀使用寿命进行估算，并提出一种泵阀结构改进的新方案，在一定程度上有效减缓了应力集中，对延长泵阀使用寿命具有重要的实用价值。

The fatigue limit of the S-N curve is found to be about 30% of the ultimate static failure stress, which validates the value suggested by the UK guidance.

其疲劳极限值约为静载作用下极限界面主应力的30%，与英国规程中的规定相符。

Orthogonal polynomial and three parameter exponent function model to treat fatigue crack growth curve.

疲劳裂纹扩展曲线的正交多项式与三参数指数函数拟合法。

In comparison with the traditional approach, this method of drawing fatigue diagrams for constant life by fatigue curve equation of constant life can decrease the amount of fatigue experiments by 60%～70%.

用等寿命曲线方程绘制等寿命图与传统方法相比可减少60％～70％的疲劳试验量。

Based on the experimental results and adopting the most common used method, the coefficient of cyclic properties and curve of fatigue life versus strain of LCF of 3OCr2MoV were drawn. Comparisons between experimental results and similar curves were made.

采用最通用的疲劳估算方法拟合出了30Cr2MoV转子钢的常温和高温550℃下的低周疲劳参数和循环应力-应变曲线以及低周疲劳寿命曲线，并将试验结果与同类曲线进行了比较。3。

These are references of theory and test for safety assess of reactors. The paper put forward the concept of decrease coefficient , and the actual calculation process of K〓 for forecasting the fatigue life of the structure. The research made it possible to forecast the fatigue life of damaged materials, and the prediction was based on the S-N curve from the fatigue test of the smooth material with controlled strain.

提出了疲劳寿命的减少系数K〓的概念，给出了计算K〓预测结构的疲劳寿命的具体过程，这一问题的研究使以平滑材料控制应变疲劳试验得出的S-N曲线图为基础来预测有损伤材料的疲劳寿命成为可能。

3 Fatigue strength analysis of WIG structure Combining the classical fatigue S-N curve with the theory of fracture mechanics the fatigue strength of some weak parts of WIG has been calculated.

产生影响的主要是结构的低阶频率，所以今后实验中如何排除弹性支撑刚度对结构低阶固有频率影响是今后实验中需要解决的问题。

It identifies "worse condition points" along the path according to the curve information, machine tools capability and machining requirement. Integrated with adaptive interpolation, segmented high speed machining is adopted. Different constant speed segments and speed transition segments are obtained according to the feed motion constraint model, and the corresponding feed information are stored in a penta-element lookup chain table. By referring to the lookup table, the interpolator can automatically determine the feed motion.

算法根据加工路径的曲线信息、机床加工能力及加工要求确定&最差状态点&，并结合自适应插补思想，采用分段高速加工，根据进给约束模型得到不同恒定速度加工段及速度过渡段，并将这些信息存储在一个五元的自适应Lookup链表中，插补过程中通过查找该链表确定进给参数。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。