滑移的

Treating with coils as aeolotropy, this paper brings forward a set of mathematical mode for computing internal stress distribution of coil in the process of coil coiling, in which some factors are taken into account, such as the transverse distribution of shape, crown and curl tension of the strip, the friction between the strip and the reel, the friction between strips, and etc. Because the reel shrinkage and the inner circle of the strip losing radial restrain and circumferential restrain can induce interlayer slipping and the change of the whole coil compactedness , the assumption concerned ——"virtual reel" in the process of coil uncoiling is put forward, which takes the form of slow action to express the uncoiling process and, therefore clearly simulates the variation course of internal stress distribution of coil in the process of coil uncoiling.

考虑到带材板凸度、卷取张力的横向分布以及带材与卷筒之间、带材与带材之间的摩擦力等因素的影响，并将钢卷按各向异性体处理，提出一套计算卷取过程中钢卷内部应力分布的数学模型；同时考虑到卸卷过程中由于卷筒的收缩，钢卷内圈失去径向和周向约束而引起层间滑移及整个钢卷紧密程度发生变化，提出钢卷卸卷过程中有关"虚拟卷筒"假设，将卸卷过程以"慢动作"的形式表示出来，清楚地模拟出卸卷过程中钢卷内部应力分布的变化历程。

Boron distributions of Fe〓 alloys were detected by means of α-particle autoradiograph.

发现微合金化后，脆性改善的实质是添加的合金元素改变了Fe〓的DO〓和B2这二类反相畴界能，这影响了反相畴界的密度、长程有序度和超点阵位错组态的滑移特性，从而改善Fe〓的脆性。

In polycrystal, triple junction is an important grain defect which plays an important part in the deformation behavior and fracture. However, it is still less known. In this paper, zero-tension-zero test under stress control on tricrystal which grew from pure copper of 99. 999% by the Bridgman method was carried out, and the appearance of surface slip line was also obtained.

在多晶体中，三晶交线是一种重要的晶体缺陷，对多晶体的变形行为和断裂起着重要的影响，但是人们对它的了解和重视程度又是很不够的，本文首先对由99.999％的纯铜随机生长的三晶体进行了拉-零循环加载实验，得到了表面滑移线形貌，实验中采用应力控制。

Thirdly, Through the introduction of the Burckhardt road model 、Gim tire model、bus brake model and Time-domain model of road roughness ,ABS system with a fuzzy controller based on the slip rate deviation and deviation rate of change was designed. The ABS system on account of impacts of air suspension and road roughness were analyzed, and its result showed that air suspension system and braking system need joint control.

第三，通过引入了描述单轮特性的Burckhardt的路面模型、Gim轮胎模型、客车制动器模型和时域路面不平度模型，并在此基础上设计了基于滑移率偏差和偏差变化率的ABS模糊控制器，对计及空气悬架和路面不平度影响的ABS进行了分析，进而说明了空气悬架系统与制动系统进行联合控制的必要性。

Further study of this paper has shown that reason for"camel peak"phenomenon in the adhesion-creep test curves is difference between sliding-and static coefficient of friction and discussed the analytic formulae for line contact as well as one direction slip and special correction Lemk's method for point contact when their change is considered as stage jump function.

通过进一步的理论研究指出造成轮/轨粘着率与弹性滑移率实验曲线呈"驼峰"状的原因是滑动区和粘着区的动、静摩擦系数变化，给出了当它们为阶跃变化时线接触条件下的解析解和对点接触情况的独特的"修正"Lemke算法。

Numerical methods based on the continuum hypothesis and molecule kinetic theory are performed to investigate the gaseous flow in the microchannels. The validity of different boundary conditions based on continuum model is examined by DSMC method under different Knudsen number. It is found that the impact of rarefied and compressibility effects are different.

针对微槽道中气体流动的特征，分别采用连续介质模型和分子运动模型简要分析了连续介质模型中不同滑移边界条件的适用范围，并总结出稀薄效应对槽道中压力的的影响和可压缩效应的作用趋势是相反的。

According to the fractional derivative model of viscoelastic damper and force-deformation-slip relation of friction element,a precise finite element model of FVD is constructed,and the method for forming element stiffness matrix and control force vector of FVD is deduced.

针对粘弹性材料的分数导数模型和摩擦单元的力-位移-滑移量的矩阵关系式，建立了FVD精确的有限元模型，推导了FVD单元刚度矩阵和控制力向量计算公式和求解方法；根据钢筋混凝土框架结构的非线性特性，建立了设置FVD非线性钢筋混凝土框架结构地震反应时程分析的控制方法。

Based on raw materials, this thesis begins with Escher's exploration of mathematical methods, analyzes his regular division of the plane with preliminary symmetric principles-concepts about symmetry and isometry transformation, rotation, ref...

本文基于原文资料的整理，以埃舍尔对数学方法的探索为切入点，运用数学中初步的几何原理——对称概念及等距变换概念(旋转、平移、反射、滑移反射)对埃舍尔的周期性空间分割图案进行了详实的分析，进而对艺术设计的形式中感性与理性、艺术设计与科学等关系进行探讨。

The research scope of this paper includes:(1) According to the vehicle motion parameters, the 9 degrees of freedom vehicle brake model has been established by utilizing Newtonian mechanics, which can be reduced step by step to a double-wheel vehicle brake model and to a single-wheel vehicle brake model.

为了改进传统的逻辑门限ABS的局限性，本文对基于滑移率的汽车防抱死制动系统的上述关键技术及实现方法进行了研究，并以研究成果为基础完成了相应工程项目的研制任务。

Strain rate hardening due to GBS suppressed the DRX softening and local necking so that the uniform and total elongations tended to increase at the temperatures of 400℃ and 500℃.

而晶界滑移所导致的应变速率硬化效果，则会降低动态再结晶对於材料的软化作用，进而增加AZ31B镁合金在400~500℃的均匀延伸率，并因抑制颈缩现象的进一步发生，而增加高温延性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐