裂纹

The paper presented a method of detecting long-range correlation in a signal--detrended fluctuation analysis and applied it to diagnose gear faults. Two key problems, i.e. scaling range and polynomial order of fitted trend, were discussed. Scaling exponent was extracted to be as a detector for diagnosing five types of gear faults, their were normal, spalling, tooth broken, wearing and cracking.

探讨了一种检测非平稳信号中长程相关信息的方法--利用去趋势波动分析（detrended fluctuation analysis，DFA）方法来诊断机械故障，着重研究DFA的尺度范围选择、趋势拟合阶数选择等关键问题，提取尺度指数作为诊断的特征参数，应用于齿轮的正常、剥落、断齿、磨损、裂纹等五种状态诊断，正确率达96％以上。

The effects of injection temperature on the dispersion phase and mechanical properties of polyoxymethylene/thermoplastic polyurethane elaster blends were investigated.

研究了注塑温度对聚甲醛/热塑性聚氨酯弹性体共混物形态结构和力学性能的影响。实验结果表明，注塑温度影响POM基体相与TPU分散相的粘度比，195℃时两者粘度相当，在剪切流动过程中，TPU可在POM基体中形成条状分散相，可吸收较多的冲击能并阻止银纹的生长以及裂纹的产生，从而较大幅度提高共混物的缺口冲击强度

The surface crack of the pontoon shell plate is simulated by using the ABAQUS program.

对于半潜式钻井平台浮箱，裂纹的扩展不仅影响结构的水密性甚至可能对结构的安全产生巨大威胁，并直接决定平台的整体使用寿命。

Using the principle of superposition,the original problem was converted into two sub problems with hole edge crack.The remote bending was applied to the first problem.

利用叠加原理，将原问题转化为两个含有孔边裂纹的子问题，远程弯曲只存在于第一子问题。

This subject combines the basic principle of the calculus of variation and and reply and change basic theories of the function according to fracture mechanics, use mechanics, mathematics knowledge to set up corresponding mathematical model, derive out a series of mechanics and mathematics theory formula, work out procedure carry on number value calculate, to include edge crackle round stress intensity factor of component go on, ask, solve.

本课题结合变分法的基本原理并根据断裂力学和复变函数的基本理论，运用力学、数学知识建立相应的数学模型，推导出一系列的力学及数学理论公式，编制程序进行数值计算，对含边缘裂纹圆形构件的应力强度因子进行求解。

Processing efficiency as a result of cutting-axis achieve the revitalization of planning released the equipment manufacturing industry to adjust exhaust turbocharger atc common faults and exclusion of high-speed cutting edge technology used in the blanking die in and outside the ring of rolling bearing fault diagnosis methods of the term commonly used brief summary of metal material factor in the quality of process performance aluminum water purification technology gap separating sub-micron technology the basic principles of rotary broaching the installation of the basic principles of positioning technology in the context of the characteristics of the engine crankshaft camshaft grinding high-speed implementation of the project highlights the emergence of diagnostic bearing cage diagnostic system 10 cases of preventive measures hardening die steel crack analysis of elastic deformation of the analysis error δφ maintenance and repair pneumatic tools processing tools prismatic conical shape when the surface of the workpiece form error ina sets of cylindrical sliding zgb200x220x180 ina sets of cylindrical sliding cylinder zgb180x200x180 ina zgb160x180x150 ina sets of cylindrical sliding sliding sliding cylinder zgb140x155x150 ina sets zgb120x135x120 ina sets of sets of cylindrical sliding zgb110x125x100 ina sets zgb100x115x100 ina cylindrical cylindrical sliding sliding sliding cylinder zgb90x105x80 ina sets zgb80x90x80 ina sets of sets of cylindrical sliding zgb70x80x70 cnc machine tools in general the structure of the spindle drive motor and the use of the exchange servo motor,the dc converter or to eliminate brush maintenance and high-speed electrical and mechanical constraints,through the belt driving the movement to the spindle,so that the spindle reaches a certain speed to achieve the stepless speed regulation,and consistent use of the speed signal converter to confirm the speed of the motor to achieve the directive,and then cutting into the knife,resulting in improved efficiency

摘 要：由于加工切削效率轴达到实习心得振兴数控机床实习心得发布装备制造业调整废气涡轮增压器常见故障及排除换刀高速切削技术的优势在冲裁模中废旧滚动轴承内外环设备故障诊断常用简易方法名词简介金属材料工艺性能铝材质量因素净化水处理技术空白亚微米分离技术回转拉削基本原理定位安装的基本原则特征技术产生的背景发动机曲轴凸轮轴的高速磨削加工五轴机实施中数控机床实习心得涌现诊断轴承保持架诊断系统预防措施10例模具钢淬火裂纹分析弹性变形误差δφ的分析维护及保养气动工具棱体成形车刀加工圆锥面工件时产生的形状误差 ina 圆柱滑动套 zgb200x五轴机x180 ina 圆柱滑动套数控机床实习心得180x200x180 ina 圆柱滑动套 zgb160x机床实习心得x150 ina 圆柱滑动套 zgb数控机床实习心得x155x150 ina 圆柱滑动套 zgb120x135x120 ina 圆柱滑动套 zgb110x125x100 ina 圆柱滑动套 zgb100x115x100 ina 圆柱滑动套 zgb90x105x80 ina 圆柱滑动套 zgb80x实习心得x80 ina 圆柱滑动套 zgb70x80x70 数控机床的主轴机床信息交流网结构一般采用交流电机和伺服电机，采用变频器或以消除直流电机电刷维护和高速限制，通过带传动把运动传给主轴，进而使主轴达到一定的转速来实现无级调速，同时利用变频器的速度一致信号来确认电动机达到了指令速度后，再进刀切削加工，从而提高了效率

The free vibration problems of slender prismatic beam with a single opening crack are studied.

研究了含常开裂纹矩形截面梁的自由振动问题。

However, if you are unable to validate your copy of Windows, you can install Microsoft Private Folder by using the following steps with any WGA validation process, and without using any crack or hack:...

然而，如果您无法验证您的Windows副本，您可以安装微软私人文件夹中使用下列步骤与任何WGA验证的过程，而不使用任何裂纹或哈克

Simple 2 steps, without the usage of crack or hack to bypass the WGA validation, Microsoft Private Folder is installed.

简单的2个步骤，但无使用裂纹或黑客绕过WGA验证，微软私人文件夹中安装。

The statistical natures of FCP at the weld toes were investigated on the probability space.

在概率空间上研究并初步揭示了焊趾疲劳裂纹扩展过程的统计规律。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。