According to the theory of wave crack, the variation rules of wave speed and amplitude, by use of the compressional-wave probe, the polarizing wave speed of rock with large plane is obtained.
根据横观各向同性介质波动理论,结合波速、波幅的变化规律分析,通过纵波探头平测法,测试了有较大平面的岩块横波在层理面内的偏振波速。
The wave propagation and power flow characteristics of a shell-type pipe with circumferential surface crack are investigated and the method for crack detection is proposed.
研究在外力激励下含有环向表面裂纹损伤的壳式管道的波传播与功率流特性,并给出裂纹识别方法。
The wave finite element method was used to study the dynamic response under impact loading in a gradient non-homogeneous plate with a crack.
为了研究梯度非均匀有限板中裂纹动态响应问题,用波动有限元的方法研究了梯度非均匀板中裂纹在冲击载荷作用下的动态响应。
This research is mainly focused on the influence of crack on the wave propagation in cracked media.
本文以裂隙对波传播的影响为主要研究目标。
The wave from vessel's launch causes crack of mooring chain for fixing pontoon and is considered to be solitary wave through analyses.
针对大船下水激起的波浪造成固定趸船锚链断裂的问题,分析了大船下水激起的波态是孤立波。用近似方法确定了孤立波的波高。
Driving too fast can create a wave strong enough to crack the ice, especially as you approach the shore.
驾驶过快的话会产生一种足够强的波破坏冰。当你靠近海岸的时候尤为特别。
The paper discusses the cause of and the solution to deformation and crack of micro - wave drying ceramic products, and compares micro - wave drying with traditional drying.
详细讨论了微波干燥造成陶瓷坯体变形、开裂的原因及解决方法,并与传统干燥方法进行了比较。
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。
The current domestic and abroad research status is discussed firstly, and the guided wave mode and exciting method used in pipeline crack detection is determined by disperse curve and wave structure.
首先,介绍了管道导波检测技术国内外的研究现状,然后利用频散曲线和波结构确定了管道裂纹检测所用的导波模态及激励方式。
Based on the wave surf tessellation grid, surf crack and edge stitching technique, we use method of LOD to decline data sets of ocean surface grid in order to simplify the computation.
在分析海面网格的细化的方法及裂缝和边缘缝合技术的基础上,构造LOD网格以减少网格计算量。
The P wave is inversely proportional to crack density.
波速度与裂隙密度成反比关系。
Driving too fast can create a wave strong enough to crack the ice, especially as you approach the shore. So the speed limit is about 10 miles per hour.
开得太快会形成足以使冰层破裂的强烈波浪,特别是你要靠岸的时候。
In order to test the crack of the stroke oar leafs crossbeam of a certain helicopter, we need to design a special transverse wave probe.
为了检测某型直升机尾桨叶大梁的裂纹,需要设计专用横波探头。
The other is simplified crack model, which is used to describe the traverse crack, estimate approximately the free face farther field effect and match with the 1-D fixed shape wave.
其二描述直管的横向裂缝,建立了估算裂缝自由面远场效应、并与一维定型波模型匹配的简化裂缝模型。
Moreover, investigated the relation among the P wave velocity, the micro-crack in rock with the variation of core diameter.
探讨了岩石的微观裂隙、超声波速度与岩芯变形之间的关系。
As an example, the scattering of SH-wave from only two interface co-linear cracks is discussed. The distributed regularities of the crack DSIF are determined when the medium parameters are altered.
讨论了界面两个共线裂纹与SH波的散射结果,给出了裂纹尖端动应力强度因子随介质参数变化的分布规律。
As an example, the scattering of SH-wave from only two interface co-linear cracks is discussed. The distributed regularities of the crack DSIF are determined when the medium parameters are altered.
讨论了界面两个共线裂纹与SH波的散射结果,给出了裂纹尖端动应力强度因子随介质参数变化的分布规律。
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