查询词典 Mises

The Von Mises angular function is used to describe the angular correlation for the distributed source and derive a novel distributed source model from the quantitative angular correlation.

利用阵列接收信号协方差阵的特征值分析了源内角度相关程度对有效信号子空间的影响。

Carried out generalized Mises yield criterion , yield curve on the n flat face was circle curve, and different elected parameters correspond to external angular point circumcircle、 internal angular point circumcircle and incircle of Mohr-Coulomb unequiangular hexagon. According to unequiangular hexagon, circle yield curve which had the same area as hexagon can be found, and corresponding yield criterionwas equilateral circle yield curve.

3广义米赛斯准则在π平面上的屈服曲线为圆曲线，选择的参数不同对应有莫尔—库仑不等角六边形的外角点外接圆，内角点外接圆和内切圆，对于不等角六边形，还可以找到一个面积和六边形相等的圆屈服曲线，对应的屈服准则为等面圆屈服曲线。

A nonlinear finite element model is constructed, considering the large deformation, large strain, bolts pretension, bolt contact-slide, as well as material harden and soften, and Miese yield criterions and double nonlinear 3-D element are adopted, so it can predict performance of beam-to-column web connections under cyclic loads.

本文考虑大变形、大应变、螺栓预拉力及螺栓处的接触滑移、材料的强化和软化，采用Mises屈服准则、双重非线性空间单元，建立的非线性有限元模型能够比较精确地模拟梁柱腹板连接在循环荷载作用下的受力性能。

The results show as follows: Due to unfitting between the wheel tread and profile of Frog No. 9, two-point contact occurs between the wheelset and frog and the contact patches become narrow and long; the Von Mises stress and contact force in the area of the contact patch between the tread close to the flange and the frog are so great that they go far beyond the yielding limit and enter the plastic deformation stage; this will lead to serious wearing of wheelset treads and frogs.

结果表明，由于车轮踏面与9号辙叉的型面不配合，轮对与辙叉形成两点接触，且接触斑狭长，靠近轮缘处踏面和辙叉接触斑的应力及接触力非常大，其数值远远超过材料的屈服极限，进入塑性变形阶段，这将导致车轮踏面与辙叉的磨耗严重。

The solution of Mises Criterion is a special case of the unified solution.

已有的Mises解是本文解的特例，从文中的统一解得知，正确认识材料强度并合理运用屈服准则对发挥材料潜能具有重要意义。

In the general von Mises coordinate, a rotated difference scheme of 3D Euler equations is constructed.

在广义von Mises坐标系中构造了三维Euler方程的旋转差分格式。

The range of The weighted coefficient b can be abtained and Mises yielding criterion can be linearly replaced by it.

建立了加权三剪应力屈服准则，导出了根据σs/τs 的比值选择权系数b的关系式，以及能够线性代替Mises屈服准则的加权系数的取值范围。

NARRATOR: In Soviet Russia, it seemed as if von Mises's predictions were coming true.

旁白：在苏联，Von Mises的预言看起来好像应验了。

Afterwards, one-foot standing position was simulated to conduct the loading and constraint of the model,the Mises and shear force distributing of the cup were analyzed,forecasting the mechanical risk of prosthetic failure.

模拟人体单足站立状态，而后对重建的人体骨盆模型进行力的加载与约束，分析髋臼内Mises 应力及剪切应力的分布情况，预测术后假体失效的力学危险性。

The main research tasks and results are as follows:(1) Through comparing the stress intensity factor of compact tension specimen calculated by finite element software with the theoretical value, the feasibility of calculating fracture parameters of crack tip in ABAQUS software was verified.(2) The relationship between the elastic modulus of the material and research scale was studied based on deriving the cohesive stress theory and other relevant theories. And the elastic modulus of the material on meso-scale was determined.(3) Global model and sub-model of the finite element were built in th...e macro-scale, and stress-strain field nearby the crack tip was analyzed, and the results show that the detailed stress-strain in the crack tip could be obtained by using the sub-model technique.(4) In meso-scale, the crack growth model was also established by assuming the crack propagating along the grain boundary, and the detailed stress-strain field in the crack tip was obtained.(5) The effect of crack length on Von Mises stress, and maximum principal stress and strain was analyzed in meso-scale when equivalent KI equals 30MPa.m1/2. And the results show that except for crack tip area, the stress-strain distribution in whole specimen is not affected.

主要完成研究内容和取得成果如下：(1)利用有限元软件计算出紧凑拉伸试样的裂纹尖端应力强度因子KI值，其结果与理论值一致，从而验证了利用ABAQUS计算裂纹尖端相关断裂参量的可行性；(2)在研究内聚应力等相关理论的基础上，推导出了研究尺度与材料弹性模量的近似关系，并确定了介观尺度上的弹性模量；(3)在宏观尺度上建立了全局有限元计算模型和子模型，得到了裂纹尖端应力应变场分布，结果表明利用子模型技术获得比较准确的裂纹尖端应力应变场分布是可行的；(4)在介观尺度上利用平均晶粒尺度的方式建立了裂纹沿晶扩展模型，得到了裂纹尖端断裂过程区的微观应力应变场；(5)当应力强度因子为30MPa.m1/2时，分析了介观尺度上在裂纹沿晶扩展过程中裂纹长度对Mises应力、最大主应力和应变的影响，结果表明，裂纹扩展长度对试样整体应力应变分布影响不大，而对裂纹尖端区域有较大影响；(6)介。。。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。