查询词典 constitutive

In this paper, magnetorheological fluids and it's rheological behavior were introduced. And the principle of the disc-shaped magnetorheological fan clutch was investigated theoretically. The Bingham model was used to characterize the constitutive behavior of MR fluids subject to an external magnetic field. Based on Bingham model the expressions of the torque and the output rotational speed within the clutch is derived to provide the theoretical foundation in the discal design of the clutch. Then the calculations of the radius of the disc, the thickness and volume of MR fluids within the MRF clutch are yielded. Finally, the sketch of the clutch was designed.

文中对磁流变液的材料及流变特性进行了介绍，分析了圆盘式磁流变液汽车风扇离合器的工作原理，基于Bingham模型建立离合器的力矩模型，结果表明离合器传递的力矩随外加磁场的变化迅速变化，力矩的大小可以通过调节磁场强度的大小来控制，进一步推导了离合工作半径，工作间隙厚度等设计计算公式，最后完成了离合器的原型设计。

The results show that the constitutive equations proposed by the present author could describe more precisely the macroscopic mechanical behaviour of ductilely damaged metals and alloys, while those of Gurson often give the results much higher than those of the finite element analysis and experiments.

结果表明，本文给出的含微孔材料弹塑性本构方程能够更好地反映含塑性损伤金属材料的宏观力学性能，而相应的Gurson方程的结果则往往远远高于实验及有限元分析结果。

In the second part, the theory of numerical simulation is introduced, including description of body configuration, elastic-plastic large deformation constitutive equation and finite element formula. It is followed by the derivation of equation from the basic theory of elastic-plastic deformation. The solution to temperature field, thermal stress, thermal strain, equivalent effective stress and equivalent strain is achieved then. In addition, we exposit the relation between machine load and thermal load in coupling analysis.

介绍了物体的构形及其描述，弹塑性大变形的本构方程、有限元列式；并进一步论述了弹塑性变形的基本理论，推导了弹塑性方程组；阐述了温度场的求解、热应力及热应变的理论概要，说明了等效应力与等效应变，并进一步阐明了在热力耦合分析中，机械负荷与温度负荷之间的关系；此外，还简介了Marc AutoForge程序结构的特点。

The result shows that the numerical calculation based on strength reduction echnique can not only consider the geomorphy, geologic structure and reinforce measure but also the constitutive relationship of rock and the interaction between structure and slope.

研究表明，基于强度折减法的数值计算可以像数值模拟方法那样既考虑三维效应明显的地形地貌、地质结构和加固方式等，又考虑岩土体的本构关系和支挡结构与坡体的相互作用，还可以像极限平衡法那样计算安全系数，却不用指定滑面。

Keywords gypseous salt:flow constitutive equation;casing;cascous and elastic property;mechanics model;finite element method

盐膏层；流体；本构方程；套管；粘弹性；力学模型；有限元法

In this paper, the improvement of the low velocity impact resistance performance of composite plates using shape memory effect of shape memory alloy is analyzed by using finite element method, The constitutive relationship and the model of finite element analysis of SMA hybrid composite plates are established, The finite element equation is solved by using the Newmark direct integration method and the modified Hertzian contact law.

应用有限元方法分析了利用形状记忆合金的记忆特性提高复合材料抵抗低速冲击的能力，建立了SMA复合材料板的本构关系和有限元分析模型，利用修正的Hertzian接触定律确定冲击接触力，应用Newmark直接积分法求解方程；研究结果表明利用SMA的形状记忆功能可有效地改善复合材料板的低速冲击响应性能。

E studied expression levels of WAVE1 in six leukemia cell lines (the human Jurkat T leukemia cells, U937 histiocytic lymphoma cells, Burkitts lymphoma cell Raji, acute promyelocytic leukemia cell HL-60, chronic myelogenous leukemia cell K562 and K562/A02) by Western blotting analysis. Levels of WAVE1 expression were high in all six human leukemia cancer cell lines. In contrast, the constitutive expression levels of WAVE1 were noticeably lower in normal human peripheral blood mononuclear cells, or non-blood cancer cell-lines, including human lung A549 cancer cells, Hela cervical cancer cells, MG-63 osteosarcoma cells, CNE2 nasopharyngeal carcinoma cells, human umbilical vein endothelial cell, QSG7701 hepatocarcinoma cells, and WI-38 lung fibroblastoma cells.

AVE1在人类血液肿瘤细胞系(人T细胞白血病细胞系Jurkat、人组织细胞淋巴瘤细胞系U937、人Burkitts淋巴瘤细胞系Raji、人原髓细胞白血病细胞系HL-60、人慢性髓原白血病细胞系K562和K562／A02)中高表达，在非血液肿瘤细胞系(人肺腺癌细胞系A549、人宫颈癌细胞系Hela、人成骨肉瘤细胞系MG-63、人鼻咽癌细胞系CNE2、人脐静脉内皮细胞系HUVEC、人肺成纤维细胞系WI-38、人肝上皮细胞系QSG7701)以及正常人外周血单个核细胞中低表达或不表达。

In comparison with the hypoplastic constitutive model presented by W.

同时也得出了一些具有工程实用价值的结论：(1)。

The origin and development, general representation of hypoplastic constitutive model are introduced; and mechanical and mathematical analysis is made.

较详细地介绍了该本构理论的起源、发展和本构方程的般表述形式，并做相应的数学力学特性分析。

Determination of constitutive parameters in Wu-Bauer hypoplastic model andGudehus-Bauer hypoplastic model is introduced.

2介绍了Wu-Bauer亚塑性模型和Gudehus-Bauer亚塑性模型本构参数的实验确定方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。