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three-dimensional effect
相关语句
  三维效应
    THREE-DIMENSIONAL EFFECT OF SURFACE FATIGUE CRACK PROPAGATION
    表面疲劳裂纹扩展的三维效应
短句来源
    THREE-DIMENSIONAL EFFECT OF GAS FLOW IN MICRO CHANNELS
    微通道内气体流动的三维效应
短句来源
    The gas flows in three-dimensional straight micro channels are numerically simulated using the direct simulation Monte Carlo method. Different cross section formations and different driving pressures are taken into considerations. The simulated results indicate the three-dimensional effect of the cross section formations on the micro channel gas flows.
    本文使用直接模拟Monte carlo法对三维直微通道内的气体流动进行了数值模拟,对比了不同截面形状的通道 不同驱动压差的情况,探讨了截面形状对微通道内气体流动三维效应的影响以及三维效应对流量-压差关系的影响。
短句来源
  三维效应
    THREE-DIMENSIONAL EFFECT OF SURFACE FATIGUE CRACK PROPAGATION
    表面疲劳裂纹扩展的三维效应
短句来源
    THREE-DIMENSIONAL EFFECT OF GAS FLOW IN MICRO CHANNELS
    微通道内气体流动的三维效应
短句来源
    The gas flows in three-dimensional straight micro channels are numerically simulated using the direct simulation Monte Carlo method. Different cross section formations and different driving pressures are taken into considerations. The simulated results indicate the three-dimensional effect of the cross section formations on the micro channel gas flows.
    本文使用直接模拟Monte carlo法对三维直微通道内的气体流动进行了数值模拟,对比了不同截面形状的通道 不同驱动压差的情况,探讨了截面形状对微通道内气体流动三维效应的影响以及三维效应对流量-压差关系的影响。
短句来源
  三维效应
    THREE-DIMENSIONAL EFFECT OF SURFACE FATIGUE CRACK PROPAGATION
    表面疲劳裂纹扩展的三维效应
短句来源
    THREE-DIMENSIONAL EFFECT OF GAS FLOW IN MICRO CHANNELS
    微通道内气体流动的三维效应
短句来源
    The gas flows in three-dimensional straight micro channels are numerically simulated using the direct simulation Monte Carlo method. Different cross section formations and different driving pressures are taken into considerations. The simulated results indicate the three-dimensional effect of the cross section formations on the micro channel gas flows.
    本文使用直接模拟Monte carlo法对三维直微通道内的气体流动进行了数值模拟,对比了不同截面形状的通道 不同驱动压差的情况,探讨了截面形状对微通道内气体流动三维效应的影响以及三维效应对流量-压差关系的影响。
短句来源
  “three-dimensional effect”译为未确定词的双语例句
    It is found that there are two types of vorticity sources, the global one depends only on the acceleration property of the surface geometry, while the local one exists in both accelerated and uniform motion, consisting of tangential sources from pressure gradient and a three-dimensional effect of the surface curvature, and a normal source due to the divergence of the two-dimensional vorticity on the surface.
    本文研究物体对涡量场的作用,对不可压流体给出了涡量在物面产生及其在流体内部耗散的一般理论,揭示出物面上存在整体的和局部的两类涡量源,分析了每种源的作用。
短句来源
    The size of the three-dimensional effect zone is about the half of the thickness, and the length of crack (a/W) affects the SIF distribution through the thickness and the size of the three-dimensional effect zone lightly.
    Tz 随着x的增大急剧减小 ,三维约束影响区域大小大约为板厚的一半 ,且裂纹长度a/W对应力强度因子沿厚度变化规律及Tz 影响区域大小影响较小。
短句来源
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  three-dimensional effect
In the present simple manifold, the principal three-dimensional effect is a transfer of flow to the inviscid core region from the high-velocity jets adjacent to the sides which are parallel to the magnetic field.
      
Three-dimensional effect on transonic rectangular cavity flows
      
The use of transparent rotating scans, comparable to a block of glass, generates a three-dimensional effect.
      
Because it accounts for the three-dimensional effect, this model is named as the complete depthaveraged model.
      


The interaction between moving bodies and fluids, a classical problem of fluid dynamics, is reexamined from the viewpoint of vorticity dynamics. In this way, we may gain some new insight into the mechanism of the interaction and can be led to a series of results which are of practical value. The present paper studies the action of a moving surface to vorticity field and gives a general incompressible theory of the generation of vorticity at the surface and its dissipation in the fluid. It is found that there...

The interaction between moving bodies and fluids, a classical problem of fluid dynamics, is reexamined from the viewpoint of vorticity dynamics. In this way, we may gain some new insight into the mechanism of the interaction and can be led to a series of results which are of practical value. The present paper studies the action of a moving surface to vorticity field and gives a general incompressible theory of the generation of vorticity at the surface and its dissipation in the fluid. It is found that there are two types of vorticity sources, the global one depends only on the acceleration property of the surface geometry, while the local one exists in both accelerated and uniform motion, consisting of tangential sources from pressure gradient and a three-dimensional effect of the surface curvature, and a normal source due to the divergence of the two-dimensional vorticity on the surface.

用涡量动力学的观点重新考察运动物体与流体的相互作用,会对流体动力学这个古老的基本问题的机理获得更加深入的认识。本文研究物体对涡量场的作用,对不可压流体给出了涡量在物面产生及其在流体内部耗散的一般理论,揭示出物面上存在整体的和局部的两类涡量源,分析了每种源的作用。

An infinite plate containing a finite through crack under tensile loading is analysed by Fourier transform based on Kane-Mindlin kinematic assumptions for the uasi-three-dimensional deformation of plates in extension. The asymptotic expressions of stress and displacement fields near the crack tip, the variation of stress intensity factor with the plate-thickness and the three-dimensiodal deformation zone near the crack tip are investigated. The results of analysis show that, (a) the crack-tip stress and...

An infinite plate containing a finite through crack under tensile loading is analysed by Fourier transform based on Kane-Mindlin kinematic assumptions for the uasi-three-dimensional deformation of plates in extension. The asymptotic expressions of stress and displacement fields near the crack tip, the variation of stress intensity factor with the plate-thickness and the three-dimensiodal deformation zone near the crack tip are investigated. The results of analysis show that, (a) the crack-tip stress and displacement fields accounting for the plate-thickness effects are different from the plane stress solutions and this is true even for extremely small parameter ε(=?). In a very small egion near the crack tip, plane strain solutions prevail; (b) the ratio of the stress intenity factor K_1 to the corresponding plane stress one K_1, K_1/K_1~0, approaches 1/(1-ν~2) as s tends to zero; (c) plane stress soiutions can give satisfactory results for points a distance from the crack tip greater than about three-fourths of the plate-thickness; (d) the linear elastic result for the zone of three-dimensional effects is approximately valid for an elasto-plastic material with linear strain-hardening when plastic tangential moudulas E_t is not very small.

本文利用Kane和Mindlin关于弹性乎板面内问题位移的基本假设及Fourier变换求解了无限大板的I型裂纹问题,得到了裂纹尖端应力位移场的渐近形式、应力强度因子随板厚的变化规律以及板厚对裂纹前缘三维效应区的影响.研究表明,对线性硬化材料,在塑性切线胰量不太小的情况下,线弹性分析的结果可近似适用于弹塑性材料.

The three-dimensional waving plate theory is developed to analyze the swimming properties of rectangular and triangular waving plates with variable wave amplitude. It is confirmed that the undulatory motion can reduce three dimensional effects. This important hydrodynamic phenomenon is the main reason that the undulation is widely used as the swimming means by a large number of aquatic animals. The transition of the anguilliform mode of propulsion to the carangiform mode is discussed. It is also...

The three-dimensional waving plate theory is developed to analyze the swimming properties of rectangular and triangular waving plates with variable wave amplitude. It is confirmed that the undulatory motion can reduce three dimensional effects. This important hydrodynamic phenomenon is the main reason that the undulation is widely used as the swimming means by a large number of aquatic animals. The transition of the anguilliform mode of propulsion to the carangiform mode is discussed. It is also confirmed that the pronounced necking of body shape anterior to the tail, which benefits the propulsive performance, is a major morphological adaptation of fishes using the carangiform mode. In addition, the corresponding form of body movement is that the amplitude of undulation increases posteriorly and no complete wavelength is apparent at any time.

本文在文[1]的基础上,对矩形与三角形柔板作变幅度行波状摆动的游动方式进行了分析。进一步证实波状运动具有一个重要的流体动力学现象,即能够减弱三维效应,减少展弦比与柔板形状的影响,并且能够充分提高游动推进效率。从而说明了大量水生动物之所以采用波状游动的主要原因。文中讨论了鱼类游动的鳗鲡推进模式向鯵科推进模式的过渡,证实了尾柄收缩、尾鳍扩展是鯵科模式游鱼的重要形态适应,同时,相应的游动方式为行波波幅朝向尾端增加,不呈现完整波形。

 
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