The crack depth test method and the instrument presented are testified to have fine practicability.
理论与实测表明,提出的裂纹检测方法和开发出的测试仪器具有实用性。
In hydroelectric power station of Li Jiaxia dam detection, the testing crack depth is deepest achieves about 1.1m.
在李家峡水电站主坝的检测中,检测裂缝深度最深达到1.1M左右。
The propagation and coalescence of 3d surface cracks are dependent on the crack depth and the crack configuration.
三维表面裂纹间的贯通要复杂得多,同时受裂纹切割深度、空间位置影响较大。
A nonlinear crack modal, modified by the crack depth, is used to study a cracked rotor with the influences of whirl speed.
采用裂纹深度修正的非线性开闭裂纹模型,研究涡动影响下挠性裂纹转子的动力学行为。
The effects of crack depth, crack location on dynamic unstable regions of the system are discussed and compared with previous data.
文中还讨论了裂纹深度、裂纹所处的位置对系统动力不稳定区域的影响,且与有关文献的结果作出了比较。
The correlative circuit modules are used to design the quantitative indication system for crack depth on the surface of steel material.
用相关的电路模块设计了符合要求的金属表面裂纹深度定量标定系统。
The natural frequencies of beam are calculated with finite element method in the cases of different crack width and different crack depth.
本文利用有限元法分别计算在不同的裂纹深度、不同的裂纹开口宽度的情况下梁的固有频率。
The effect of crack depth, crack shape, wall thickness ratio, the number of cracks etc. on singular stress field near the crack tip is investigated.
探讨了单裂缝与均布多裂缝情况下,裂缝深度、裂缝形状,厚壁筒壁率、裂缝数目等特性参量对裂缝尖端附近奇异场的影响。
Identification of the influence of reinforcing bar (REBAR) for ultrasonic detection of crack depth in concrete was studied through theoretical analysis.
通过理论分析提出了在超声波检测钢筋混凝土构件裂缝深度时判辨钢筋影响的方法。
The technique proved effective when it was used in rapid crack testing and crack depth measuring of steam turbine metal parts such as joint face of hig.
将其应用于发电厂汽轮机金属部件如高、中压缸结合面以及汽轮机叶片的表面和近表面裂纹快速扫查和测深,取得了一定效果。
Statistic data were obtained by tests and dissections and the relationships between crack length, width and depth were given as a reference for crack depth evaluation.
通过大量检测试验和解剖,得出统计规律数据,从而得到裂纹长度、宽度与深度之间的对照表,对裂纹深度的评估有一定的参考价值。
The numerical simulation results show that the equivalent stress intensity factors KIeq relates with the engine firing order, their peak value rises while the crack depth increases.
计算结果表明,等效应力强度因子与发动机点火顺序密切相关,其峰值随裂纹深度的增加而增大。
By using ANN and its powerful nonlinear mapping ability and combining production of FEM dynamic analysis, a new way to predicting terrane crack depth of complex fire hole is offered.
以神经网络为基本工具,利用其强大的非线性映射能力,并结合有限元法动力分析成果,为预测在复合射孔条件下岩层裂缝扩展深度提供了一条新的途径。
Experiment result shows through the comparison for various combinations of crack depth and materials, there is a strong relation between crack depths and the peak current amplitudes.
实验结果表明:经综合考虑了裂纹深度、材质对测量结果的影响之后,发现裂纹深度和涡流信号幅值峰值之间有着密切的关联。
This paper, from the Angle or mathematics, makes analysis and discussion on the feasibility of acoustic wave detection of crack depth in concrete, and provides practical engineering examples.
本文仅就声波探查砼裂缝深度的可行性从数学角度进行了分析与论证,并给出了工程实例。
To test or diagnose the depth of crack is the important basis of integrated judgment of damaged concrete structure after fire.
检测或诊断裂纹深度是火灾后混凝土结构受损综合评判的重要依据。
The preventive maintenance sections are divided by using dynamic cluster method and three indexes including rutting depth, transverse crack length and skidding resistance.
采用车辙深度、横向裂缝长度和路面抗滑性能指数三指标,使用动态聚类法,划分预防性养护路段。
A side-testing method for measuring the depth of the crack layer is presented.
提出了一种测量裂纹层深度的方法——侧面观测法。
The measuring results in field show that the impact-echo method is effective in measuring the depth of surface-opening crack.
现场测试表明,该方法对开口裂缝深度的测试是相当有效的。
The work mentioned above is helpful to understand width effects and evaluate surface crack with different width and depth.
上述工作有助于全面认识宽度对漏磁场的作用,实现不同宽度、深度的表面裂纹量化检测。
The ultrasonic method is unfit for inspecting the depth of crack originated from live load, since the crack will close after the load is removed.
通过对某高桩码头横梁裂缝深度的超声检测、骑缝取芯验证,说明对于活荷载引起的结构性裂缝,由于卸载后裂缝重新闭合,超声法检测存在局限性。
The width and depth of the widest crack increase with the increase of the length of the wall.
最大裂缝宽度和深度随着墙体长度的增大而增大。
The weight function formulas are worked out and can be used for all kinds of depth of crack, materials, assemblage excess, size of combined thick wall cylinder to compute the stress intensity factors.
本文用权函数法导出了由套装应力引起的组合厚壁筒内边裂纹的应力强度因子公式 ,这些公式可用于计算组合厚壁筒在不同裂纹深度、材料、过盈量和尺寸情况下的应力强度因子。
In measuring the speed of rotation and the depth of metal crack, PMOSICs and CMOSICs were employed to design two kinds of digital frequency counters.
在对转速和金属裂纹的数字检测中,我们应用pmos和CMOS组件设计了两种数字频率计。
According to tympanites pingo crack, we can identify the type of tympanites and scale and depth of clay lens.
根据鼓丘龟裂纹可以反演翻浆类型,并判识粘土透镜的位置。
Based on in-depth analysis of reflective crack formation mechanism, this paper gives reflective crack preventive and curative measures.
本文在深入分析反射裂缝形成机理的基础上,提出了反射裂缝的预防及治理措施。
By means of numerical calculation, the rules of J-Integral values varied with the length and depth of the inner surface crack of gun barrel were obtained.
通过数值计算,得出了身管内表面裂纹J积分值随裂纹长度及深度的变化规律。
The stability of the periodic motion decreases as the depth of the transverse crack on the rotating shaft increases.
裂纹深度的加大降低了系统周期运动的稳定性。
The regulation specifies the principles, contents, detailing and material requirements, design value of concrete cover depth, crack width limiting, additional anti-corrosion measures and test methods.
规定了混凝土结构耐久性设计的原则、内容、结构构造和材料选用基本要求、混凝土保护层厚度设计值、裂缝宽度限值等,并给出了防腐蚀附加措施及试验方法。
By use of minimum quadratic multiplication the inflexion depth to temperature curve can determined that can interpret the vertical crack height.
通过逐一确定井温曲线拐点达到确定裂缝高度的目的。利用最小二乘法可以确定井温曲线拐点深度,从而可以解释垂直裂缝高度。
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