 全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多   时间域 在 建筑科学与工程 分类中 的翻译结果: 查询用时：0.796秒 在分类学科中查询 所有学科 建筑科学与工程 地质学 地球物理学 力学 矿业工程 数学 铁路运输 交通运输经济 中国语言文字 更多类别查询 历史查询  时间域  time domain
 TIME DOMAIN BOUNDARY ELEMENT METHOD APPLIED TO DYNAMIC RESPONSE OF FOUNDATION 时间域边界元应用于基础动力响应问题 短句来源 The calculation programe is worked out on directly identifying the physical parameters for the silo, which combines neural network with new proposed learning algorithm within time domain. 编写了计算程序，在时间域内提出了一种直接识别贮仓结构物理参数的方法。 短句来源 3. The signal of instant vibration testing for soil compactness is analyzed both in time domain and frequency domain. Some feature parameters reflecting the characteristics of the signal are extracted. 3．从时间域和频率域两个角度对土密实度瞬态振动测试信号进行了分析，提取了信号的特征参量。 短句来源 Then, the principle of the random vibration is extended to the wind-excited vibration analysis; the analysis process for the wind-excited vibration analysis is deduced in frequency domain and time domain. 紧接着将随机振动的基本原理推广到了风振的分析中，推导了频率域和时间域内进行风振分析的基本过程。 短句来源 The equation is discreted both in space domain by using the Galerkin weighed residual method and in time domain by using the Newmark step -by-step integral method ,the FEM formula and the numerical methods for the consolidation analysis of the two phase medium under the dynamic loading is derived ,discard the method which is divided in two step, first calculating the dynamic response ,second calculating the static consolidation,or calculation pore water pressure by water pressure constitutive model. 利用伽辽金和Newmark法分别对控制方程在空间域和时间域上进行离散,推导出三维两相介质的动力反应的有限元解析格式与数值分析方法,抛弃以往分两步走(先动力反应,再静力固结)或引进孔压模型来计算孔隙水压力的方法。 短句来源 更多 “时间域”译为未确定词的双语例句
 3. Generalized Voigt model was used to simulate the visco-elastic property of soil surrounding pile and the relationship between settlement and time of pile embedded in layered soil was investigated. 将成层地基中每一层土对桩的作用简化为广义voigt体模型，由此建立了单桩的静力平衡方程，并求解得到了成层地基中静荷载下单桩桩顶沉降在拉普拉斯变换域的解析解和在时间域的半解析解。 短句来源 According to the theory of equivalent time, creep as a function of equivalent time is expressed. By fitting experimental data, parameters of creep in equivalent time field are obtained; initial strain implicit solution of elastic creep equation in equivalent time field is derived. 根据等效时间理论，将徐变表示为等效时间的函数，通过拟合试验数据，得出等效时间域弹性模量和徐变度公式的计算参数，推导了等效时间域的弹性徐变方程的初应变隐式解法。 短句来源 Secondly, the temperature distribution in column must be analyzed before analyzing mechanical property of HSC column at high temperature, so the thesis applies load steps of ANSYS software to analyze transient temperature field on the section, When the temperature field is analyzed, finite element grids are divided in space field and finite difference grids are divided in time field. 进行高强混凝土结构高温时力学性能的分析,首先要分析其受火高温时结构内部的温度分布,为此,本文利用有限元软件ANSYS的划分荷载步方法,在空间域内进行有限元网格的划分,在时间域内进行有限差分网格的划分,对柱截面的温度场进行了计算,计算结果和试验结果基本一致。 短句来源 The dynamic coupling behaviors between the soil skeleton and the pore water due to the dynamic consolidation are modeled and analyzed with the dynamic response theory of the two phases. 考虑了土体中土骨架的动态响应与土中孔隙水的渗流固结之间的相互耦合作用，在时间域内利用NEWMARK 法系统推导了三维固—液两相介质动力响应有限元解析格式与数值分析方法； 短句来源 By using integral transform methods, the fundamental solutions of circular load in the interior and on the surface of the half space are established in this paper. The second kind of Fredholm integral equation of the single pile under the action of circular load in saturated soil is obtained by using the fundamental solutions. 首先应用积分变换方法得出了半空间内部以及表面作用圆形载荷时的基本解 ,基于基本解得出了单桩在圆形分布载荷作用下在时间域内的第二类Fredholm积分方程。 短句来源 更多 查询“时间域”译词为用户自定义的双语例句

我想查看译文中含有：的双语例句  time domain
 Our proofs proceed in the time domain and allow us to represent each solution regardless of the spectral radius of P(0):=2-s∑cα, which has been a difficulty in previous investigations of this nature. A Time Domain Characterization of the Fine Local Regularity of Functions In this paper, the global and local linear independence of any compactly supported distributions by using time domain spaces, and of refinable vectors by invariant linear spaces are investigated. For the finite-difference time domain (FDTD) method, the electromagnetic scattering problem, which requires the characteristic structure size to be much smaller than the wavelength of the exciting source, is still a challenge. The discrete spectrum of the field after continuation is obtained from difference methods for Maxwell's curl equations in frequency-domain, and the time domain solution of the original problem is derived from their inverse Fourier transform. 更多 time-domain
 Hybrid method of combined difference and spectrum for time-domain maxwell's equations To circumvent this difficulty, this paper presents a novel hybrid numerical technique of combined difference and spectrum for time-domain Maxwell's equations. Although the structure of frequency shift filter is more complicated than the time-domain filter, it uses both time correlations and frequency spectrum correlations so it can achieve better performances on separating the overlapping signals. The transient pulse signal fidelity has also been investigated by finite-difference time-domain (FDTD) method. The modified TEM horn antenna with distributed resistor load is presented in this paper, and the radiation properties of the antenna with the shields and absorbers are studied through the three-dimensional finite-difference time-domain (FDTD) scheme. 更多 A method of artificial boundary to transmit completely the incident scalar waves in a finite computational grid is first discussed and then the transmitting formulas in compact form is expressed in terms of node displacements. The analytical results and actual numerical tests indicate that this method enjoys a distinct advantage in cancelling waves reflected from the boundary for waves of any incident angle. The error analysis has revealed an obvious superiority of this method over the current viscous approaches... A method of artificial boundary to transmit completely the incident scalar waves in a finite computational grid is first discussed and then the transmitting formulas in compact form is expressed in terms of node displacements. The analytical results and actual numerical tests indicate that this method enjoys a distinct advantage in cancelling waves reflected from the boundary for waves of any incident angle. The error analysis has revealed an obvious superiority of this method over the current viscous approaches and Paraxial Approximation. In the worst case-incident angleapproaching 90? the amplitudes of reflection waves from the boundary forincident wave of unity amplitude are by the Nth order approximation of this method, but are equal to 1 by the latter two methods. The of this method is always less than 1 when andwill be much smaller when N increases. This method is easily implemented by either finite element or finite difference method and suitable for nonlinear analysis. Further generalization of the method to frequency domain and to elastic vector wave propagation cases is pointed out as well. 本文论述了一般暂态标量波的透射方法,以紧凑形式给出了直接用节点位移表出的透射公式。本文证明,对于任意入射角,透射方法的误差小于目前通行的粘性边界和旁轴近似情形的误差。本文还指出将透射方法的时间域结果推广到频率域以及将标量波透射边界推广到弹性矢量波的途径。 Some modal natural frequencies and damping coefficients of a structure are derived by means of in-sita testing displacement records and the time domain identification technique. On the basis of the conception about modal confidence factor proposed by S.R. Ibrahim,we defined the modal frequency confidence factor and damping coefficient confidence factor. As a result, the reliability of identified structural modal parameters may be determined accurately . 本文根据原型振动实测的位移记录,应用时间域识别法,求得了结构的前几阶模态的固有频率和阻尼比.本文还根据Ibrahim提出的模态置信因子的概念,定义了模态频率置信因子和阻尼比置信因子,从而能更准确地确定识别到的结构模态参数的可靠程度. A boundary element method formulation in the real time domain in the transient elastodynamic problems is presented. The equation of motion of the linear isotropic elastic bodare transformed into the elliptic partial differential eqnations by means of the differential formulations of the Wilson-β method. By utilizing the particular solution corresponding to a dynamic point force in an infinite medium and the Betti's theorem the boundary integral equations may be obtained· As this approach formulates and solves... A boundary element method formulation in the real time domain in the transient elastodynamic problems is presented. The equation of motion of the linear isotropic elastic bodare transformed into the elliptic partial differential eqnations by means of the differential formulations of the Wilson-β method. By utilizing the particular solution corresponding to a dynamic point force in an infinite medium and the Betti's theorem the boundary integral equations may be obtained· As this approach formulates and solves the problem in real time domain in conjunction with a time-stepping algorithm, it does not require a numerical inversion. Which transformes the results from the Laplace or Fourier ransformed domain to the time domain. A numerical example was shown in order to demonstrate the applicability of the present method to the practical problems. 本文给出了瞬变弹性动力问题的一个边界元法。该法是利用威尔逊——θ法的差分公式,把运动方程化为椭圆型微分方程。根据贝蒂定理和动力点荷载的特解,可获得动力问题的边界积分方程。这个解法是在真实时间域内逐步求解的,不需要使用拉氏变换。一个应力波传播的数值算例证实了该方法使用方便,且解答精度较高。 << 更多相关文摘 相关查询

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