1) Wave impedance function
波阻抗函数
2) function of acoustic impedance difference
波阻抗差函数
1.
In this case, near surface seismic scattered noises can be stimulated by designing a function of acoustic impedance difference for each node in the grid, which is parallel to surface, to approximate to the heterogeneity of surface.
假设近地表垂直点力产生的地震波场由入射波场和散射波场组成,散射波场是入射波场与波阻抗差函数的函数。
3) impedance functions
阻抗函数
1.
As traditional models of equilibrium assignment fail to take into account the phenomenon of passenger missing boarding vehicles due to congestion on the platform,we propose the passenger impedance functions,including delay time and construct equilibrium assignment models for congested rail transit.
现有的配流模型未考虑车站拥挤导致乘客无法上车的现象,基于此通过建立包括延误时间在内的客流出行阻抗函数,构建了拥挤条件下的城轨均衡配流模型,并针对经典的Frank-Wolfe算法无法给出有效路径解的不足,给出了利用遗传算法求解模型的步骤。
2.
By means of the basic solutions of loaded Biot s equations and the influence funcfions of dynamic interaction between saturated soils and structure ,the pile is modelled by beam elements, a set of impedance functions of pile in saturated soils under seismic loading are presented.
依据外力作用下两相饱和土介质动力响应的基本解及饱和土与结构动力相互作用影响函数 ,利用梁单元模拟桩 ,应用边界元方法建立了地震动作用下 ,两相介质饱和土中桩基动力阻抗函数分析模型 ,为地震动作用下饱和土与基础结构动力相互作用研究提供了一种新的分析途径。
4) impedance function
阻抗函数
1.
Analysis of impedance function considering soil-pile dynamic interaction;
考虑桩土动力相互作用时阻抗函数分析
2.
Analysis of impedance function of oile group consideringsoil-pile dynamic interaction;
考虑桩土动力相互作用时群桩阻抗函数的分析
3.
A pseudo-3-dimmentional FEM procedure was utilized to derive the impedance function at the footing center and the transfer functions at specified points in the near field.
该方法假设高架桥的桥墩在交通荷载下是刚体运动,根据实测数据求得基础承台的输入荷载,并进而由一个准三维有限元方法所得基础承台中心的阻抗函数以及地面响应的传递函数,可以预测周围地面的响应。
5) self-impedance function
自阻抗函数
6) wave impedance parameter
波阻抗参数
1.
On the base of sedimentary micro facies detailed analysis of 6 wells in Guandu structure zone,it is carried out that a study on the relationship between various sedimentary micro facies and formation velocity and the relationship between various micro facies and wave impedance parameter.
在官渡构造带六口井精细划分沉积微相的基础上,研究了各种沉积微相与地层速度,波阻抗参数的关系。
补充资料:星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式,用星接阻抗替换三角接阻抗或者反过来,不会影响稳态下电路其他部分的正弦电压和电流,常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI,}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二,二二--,-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等,即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时,变换公式是 Z二一32丫,Z丫一Z△/3
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