1) planar crack
平片裂纹
1.
In this paper, the problem of an arbitrarily shaped planar crack which is perpendicular to the interface of bimaterial and loaded by interior normal pressure is studied by means of the method of hypersingular integral equation in three dimensional fracture mechanics.
利用三维断裂力学的超奇异积分方程方法,对双材料空间中重直于界面的平片裂纹Ⅰ型问题进行了研究。
2.
In this paper, the boundary integral equation method is used to study a halfspace elasticity with an embedded planar crack subjected to arbitrary loads.
使用边界积分方程方法，在有限部积分的意义下，将弹性半空间中垂直于自由边界面的平片裂纹问题归结为一组以裂纹面位移间断为未知函数的超奇异积分方程，根据有限部积分原理为其建立了数值方法，并给出了用裂纹面位移间断计算应力强度因子的公式。
3.
A new numerical method of Chebyshev polynomials is developed for solving hypersingular integral equations of arbitrary shaped planar crack problems in a three dimensional homogenous elastic solid.
提出了一种求解三维均质弹性体中任意形状平片裂纹问题超奇异积分方程组的Chebyshev多项式数值解法 。
2) two parallel planar cracks
两平行平片裂纹
1.
By using the Somigliana representation and the concept of finite-part integrals, a set of hypersingular integral equations for the interaction between two parallel planar cracks in a three-dimensional finite they subjected to arbitrary loads is derived, and then the numerical methed for solving is proposed by combining the finite-part integral methed with boundary element method.
利用Somigliana公式及有限部积分的概念，导出了含两平行平片裂纹三维有限体裂纹干扰问题的超奇异积分方程组，联合使用有限部积分与边界无法，建立了数值求解方法。
2.
By using the analytic theory of hypersingular integral equations in three-dimensional fracture mechanics,the interactions between two parallel planar cracks under arbitrary loads are investigated.
本文利用三维断裂力学的超奇异积分方程求解理论，对三维无限体中两平行平片裂纹在任意载荷作用下的相互干扰问题作了研究。
3) D planar interface crack
三维平片界面裂纹
4) Blade cracks
叶片裂纹
1.
The vibration signals with blade cracks are acquired.
文中从采集到的有叶片裂纹时的振动信号,用德比契斯小波对包含叶片裂纹故障的振动信号作4尺度小波包分解,通过选取适当的频段用小波包重构算法进行信号重构,提取叶片裂纹故障的特征,从而实现转子叶片裂纹故障诊断。
2.
The test of runner dynamic stresses and unit stability of Tishrin Unit 2# were carried out in order to solving the problem of blade cracks.
开展水轮机转轮动应力现场测试是叶片裂纹原因分析的重要手段之一。
5) cracks in runner blades
叶片裂纹
1.
A lot of factors made the fatigue cracks in runner blades.
大型混流式水轮机转轮叶片裂纹故障是水电站普遍存在的问题,它严重影响了水电站的安全稳定运行。
6) Blade crack
叶片裂纹
1.
To the condition of a certain type of blade crack of axial fan,it applied large-scale finite element ANSYS software,accounted the intensity,stress distributing and the axial displacement.
针对某一型号轴流风机叶片裂纹的情况,用ANSYS有限元法对叶片进行了刚强度、应力分布及轴向位移的计算,通过对比分析叶片应力-时间函数曲线,得出应力集中加快裂纹扩展结论。
2.
It provides a basis for rotor blade crack diagno.
这就为转子叶片裂纹故障的监测与诊断提供了依据。
补充资料：腹部平片
腹部平片
〖HT5”SS〗plain film of abdomen
腹部X线摄影术语。常规应用立位或仰卧位。如观察肛门闭锁可加拍倒立侧位；如观察肠内外气体分布、腹腔积液等，可加拍侧卧水平投照。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条