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切向正应力
相关语句
  tangent stress
     Numerical method for the tangent stress at any given point of the interface
     界面一点切向正应力的数值计算
短句来源
  “切向正应力”译为未确定词的双语例句
     the normal and shear stress slightly rise with the increase of deformation along the rolling direction, and reach the minimum at the exit;
     沿轧制方向,随着变形量的增大呈先轻微增大后逐渐减小的趋势,轧制出口处达到最小值,甚至出现拉应力:在纵向截面,轧制正应力与切向正应力沿轧制方向随着变形量增大呈先轻微增大后减小的趋势,沿厚度方向变化不大。
短句来源
  相似匹配句对
     Analysis of the Shapecoefficientmethod of NormalStress in Crosssectional Area of Curved Beam
     曲梁横截面上的形状系数法分析
短句来源
     (3) The influence that the anchorage effect brings to the positive stress distribution on the slip plane will be considered.
     (3)考虑锚杆锚固作用对滑面上分布的影响。
短句来源
     THE COMPARISON BETWEEN HENCKY STRESS EQUATION AND NORMAL STRESS EQUATION ALONG THE TRACING LINE OF PRINCIPAL SHEAR STRESS
     Hencky方程与主剪迹线上方程的比较
短句来源
     Development of Strain Sensor Based on Integration
     变式集成传感器的研制
短句来源
     TECTONIC FORCE SOURCE AND SEISMIC SOURCE STRESS FIELD
     构造源和震源
短句来源
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  tangent stress
Flows with Marangoni boundary layers having differently directed velocities of the external flow and the tangent stress at the free boundary are considered.
      
It is shown that the glide velocity exhibits hyperbolic tangent stress dependence if the average vacancy concentration in the crystal equals the equilibrium vacancy concentration, Co.
      


The thermal stress produced on the roller's neck has been calculated in a simple way on the basis of the elastic theory. It is shown that the roller breakdown is mainly due to the unreasonable design and unsuitable cooling method. An unreasonable design will bring about local temperature rise at the roller's neck because of the friction between the neck and the bearing while an unreasonable cooling method will result in high thermal stress on the neck's surface. The correctness of the conclusions has been proved...

The thermal stress produced on the roller's neck has been calculated in a simple way on the basis of the elastic theory. It is shown that the roller breakdown is mainly due to the unreasonable design and unsuitable cooling method. An unreasonable design will bring about local temperature rise at the roller's neck because of the friction between the neck and the bearing while an unreasonable cooling method will result in high thermal stress on the neck's surface. The correctness of the conclusions has been proved by simulating test.

本文根据弹性理论基本原理,简化计算了辊颈上产生的冷热应力值,从理论上证明了该轧辊破断的主要原因是由于设计不当造成了辊颈局部摩擦温升,又由于采用不适当的冷却方式而造成辊颈表面的切向正应力。摸拟试验证明了上述结论的正确性。

The detailed flow field in a liquid liquid hydrocyclone with a single cylinder and a cone has been measured using a 2 D LDV. The effect of different flow parameters, such as overflow ratio, pressure ratio, flow rate and air core on the flow field has been studied. The results show that the tangential velocity profiles have a typical Rankine vortex structure: solid body body rotation plus free vortex, and change slightly along the axial directon. This indicates that the adopted cone angle is suitable. Since...

The detailed flow field in a liquid liquid hydrocyclone with a single cylinder and a cone has been measured using a 2 D LDV. The effect of different flow parameters, such as overflow ratio, pressure ratio, flow rate and air core on the flow field has been studied. The results show that the tangential velocity profiles have a typical Rankine vortex structure: solid body body rotation plus free vortex, and change slightly along the axial directon. This indicates that the adopted cone angle is suitable. Since this geometrical configuration has a large hydraulic diameter, all the tangential velocities are kept in a low level, so the separation performance is not good enough. The double peaks in tangential velocity profiles are not observed. As for the axial velocity, both the upward and downward axial velocities in the near axis and near wall regions are in a low level, especially near the inlet region. This is helpful for increasing the resident time and decreasing the pressure drop. The Reynolds stresses have higher values near the axis and near the wall. The axial normal Reynolds stress is greater than the tangential one in the upstream region and is smaller than the tangential one in the downstream region. So the turbulence in the hydrocyclone is anisotropic. Compared with the effect of other flow parameters, the effect of the flow rate is greatest both in its range and extent. The influence of other factors is limited only in the near axis region.

应用二维激光多普勒仪(LDV)对一种单柱单锥型液-液旋流分离管内流场进行了测量,考察了流量、溢流比、压力比和气芯等参数对流场的影响。测量结果表明:切向速度分布呈典型的Rankine涡结构,沿轴向衰减很少,表明所用锥角是合适的;因该旋流管的水力直径较大,切向速度的总体水平较低,由此对了离特性带来不利影响。此外,没有观察到切向速度分布的双峰分布现象。轴向速度的总体水平较低,尤其是在锥形管的上游更为明显,这既有助于增加液流在旋流管中的停留时间,改善了离特性,也有利于降低压力损失,改善旋流管的低阻特性;雷诺应力总体上呈近轴与近壁处大,其它区域中小的分布趋势;上游的轴向正应力大于切向正应力,而下游的切向正应力又大于轴向正应力,表明其中湍流的各向异性特性;在所考察的四种工况因素中,以流量的影响范围和程度最大,压力比、溢流比及气芯的影响仅表现在近轴区中。

The temperature field and thermal stress on the spiral casing structure of large\|sized hydropower station are analyzed by the finite element method in this paper. The method to define the coefficient of elastic resistance on rock is presented. The thermal stresses of the concrete in the tangent direction are gotten. With the first and third temperature boundary conditions, namely temperature and heat flow boundary conditions, the temperature field and thermal stress are obtained and two kinds of the thermal...

The temperature field and thermal stress on the spiral casing structure of large\|sized hydropower station are analyzed by the finite element method in this paper. The method to define the coefficient of elastic resistance on rock is presented. The thermal stresses of the concrete in the tangent direction are gotten. With the first and third temperature boundary conditions, namely temperature and heat flow boundary conditions, the temperature field and thermal stress are obtained and two kinds of the thermal stresses are compared. According to calculating results the influence on reinforced arrangement of the concrete structure is discussed in this paper.

应用有限元方法分析了某大型水电站地下厂房中蜗壳结构的温度场和温度应力 ,阐述了围岩弹性抗力系数的确定方法 ,得出了混凝土截面的切向正应力 .计算分别采用第一类 (已知温度的边界 )和第三类 (对流换热边界 )温度边界条件 ,并对两种边界条件下的温度场和温度应力进行了比较 ,根据计算结果讨论了温度应力对蜗壳外围混凝土结构的配筋影响

 
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