Static and Dynamic Analysis of Transversely Isotropic Rigid Road Surface Structure by Finite and Infinite Element 横观各向同性刚性路面体系有限元&无限元耦合静动力特性研究
A homogeneous isotropic thin plate, on which the surface force acts and there are many actuators of discrete distribution, is considered. 考虑一均匀各向同性薄板结构,在板面内受面力作用,且在板的上下表面离散分布着压电执行元件。
The radiation impedance and the energy partition among wave fields generated by a normal force strip radiator on isotropic solid surface 固体表面法向力条源的辐射阻抗及各种波型的能量分布
In the bounding surface masonry model, the sliding yield surface is considered as isotropic hardening and rotating hardening bounding surface, and the masonry model is expanded from monotonic loading to complex loading. 把滑移屈服面看作为等向硬化和旋转硬化的边界面,从而合理地把砌块体模型从单调荷载推广到复杂荷载情况,建立了边界面砌块体模型;
Isotropic component of noise are presented in the horizontal direction of sea surface. 在与海面的水平方向上,噪声场表现为各向同性。
Stress in Transversely Isotropic Half-Space With Typical Loads Acting on Its Surface 横观各向同性半无限空间表面典型荷载作用下的地基附加应力系数
Taking isotropic scattering as a reference, effects of emitting characteristics for both sides of opaque surface and linearly anisotropic scattering phase functions on transient temperature distribution were analyzed by calculation. 以各向同性散射情况比较,研究不透明边界两侧发射特性和线性散射相函数对瞬态温度分布的影响。
Thermal stress in meteoroids by aerodynamic heating is calculated for the ideal case of an isotropic, homogeneous, elastic sphere being heated at the surface with a constant heat transfer coefficient. 对在一个各向同性、均匀的弹性球的具有恒定的热传导系数的球面上进行加热这一理想情况下,计算了陨星由于空气动力学加热而产生的热应力。
On the anisotropy response depiction method of soil, anisotropic disturbance factor is superposed to isotropic results obtained from hierarchical single surface ( HISS) model utility to show stress anisotropic characteristics of the material. 在土的应力各向异性响应描述问题中,利用单屈服面分级模型,叠加各向异性扰动因子,使材料响应表现出应力各向异性性质。
Isotropic hardening law on yield surface with multiple strength parameters 多强度参数屈服面的各向同性强化规律
The improved algorithm is applicable to the estimation of the travel times of direct, reflected and transmitted waves in isotropic medium or transversely isotropic medium; besides, it may be taken to model surface seismic exploration, VSP and borehole seism. 本算法可以计算各向同性介质和横向各向同性介质中直达波、反射波和透射波的旅行时,并用来模拟地面地震勘探、VSP、井间地震。
In this paper are given the exact solutions of displacement of a homogeneous, isotropic, elastic half-space surface of arbitrary Poisson's ratio under a vertical and a horizontal harmonic point load. 本文首次给出了匀质各向同性弹性半空间表面在竖向及水平谐和集中力作用下的位移精确解,它适用于任何介质泊松比值。
In section 3, The isotropic surface in Q~ 3 is classified, and the first theorem of classification is obtained. §3.对Q3中的迷向曲面进行分类,得到本文的第一个重要分类定理;
Though the composites reinforced by particles is isotropic, their machined surface textures and roughness are mainly controlled and dominated by the hardness and the volume as well as the size of the reinforcing particle. 颗粒增强复合材料无方向性,其已加工表面结构和粗糙度主要受增强颗粒硬度和粒度以及含量控制。
The dynamical response of transversely isotropic elastic media in half space with a blasting impact load subjected to its surface 爆炸冲击荷载作用下横观各向同性半无限弹性介质的动力响应
When laser beam is incident on an inhomogeneous isotropic plasma, the variations in density profile perpendicular to main density gradient may develop, producing a rippling of critical surface. 当激光入射到非均匀的各向同性等离子体时,垂直于主密度梯度方向的密度分布会发生变化,使临界面呈现波纹。
Pitch based activated carbon fiber was produced by different activation parameters from oxidized fiber of isotropic pitch, and the effect of parameters on the specific surface area and pore structure ( volume, pore size and its distribution) was discussed. 以通用级沥青氧化纤维为原料经水蒸气活化制得沥青基活性炭纤维(PACF),讨论了工艺参数对PACF的比表面积、孔结构(孔容、孔径大小及分布)的影响。
Based on the results of one way stress controlled undrained cyclic triaxial tests and numerical simulations using an isotropic elasto plastic bounding surface model, the evolution of the accumulated residual deformation of soft clay is presented. 通过对饱和软黏土进行一系列应力控制的循环三轴试验,结合各向同性弹塑性边界面模型数值模拟,得出了软黏土在不排水条件下受循环荷载作用时的累积残余变形规律。
For an anisotropic or isotropic plate containing an elliptical hole, the hoop stress around the hole subject to arbitrarily concentrated forces or distributed forces on its surface is derived with a complex variable function method. 应用复变函数的方法,对于含有椭圆孔的各向异性板或各向同性板,导出了当椭圆孔周作用任意集中力或分布力时孔周周向应力的解析表达式;
For the isotropic surface acoustic wave propagation medium, it is given the theoretical model, anisotropic media because of the relatively more complicated, it is given some explanations in this paper, then derived in the acoustic wave equation in the solid. 对于各向同性介质中声表面波的传播,给出了理论模型;各向异性介质因为相对比较复杂,这里给出了一些解释;之后推导了声波在固体中的波动方程。
But the isotropic pyrolytic graphite is a kind of typical brittle material. The fragmentary phenomena of the edge, low machining surface finish, low productivity and cutting tool wears seriously are occurred during the cutting process. 但各向同性热解石墨是典型的脆性材料,在加工过程中易出现边缘碎裂、加工表面质量差、成品率低、刀具磨损严重等现象。
Selected examples are presented to investigate the characteristics of the displacement and shear stresses in transversely isotropic saturated soil when two different impulsive loadings are applied on the surface of the soil. 通过数值算例研究了两种不同分布形式的冲击剪应力作用于地表一圆形区域时,横观各向同性饱和地基内不同位置处的位移、应力的变化规律。
Electrical prospecting basing on isotropic theory generally achieves great success. It is widely applied in exploration of ore and hydrocarbon. It is also popular in near surface detection in hydrology, engineering, environment and crust, upper mantle detection. 以各向同性介质为基础的电法勘探理论在很大程度上取得了成功,广泛应用于金属矿、油气资源勘探,水文、工程、环境等浅层探测以及地壳、上地幔探测。
The stability problem of the excavation face on the layered rocks is abstracted to the interfaces stability problem of the compressible transversely isotropic elastic half-space which is subjected to an impulsive line of traction on its otherwise free surface. 本文将层状岩石的开挖面稳定性问题抽象成受脉冲载荷的有预应力可压缩的横观各向同性半空间的界面稳定性问题,得出了该问题的控制方程。