谈用三爪卡盘装夹车削钢件时的切削用量

指出根据《金属切削手册》给出的切削用量范围确定切削用量，有可能不适当，特别是在三爪卡盘装夹硬度低的半径小的工件时容易发生这种情况，提出根据工件硬度、夹持长度、三爪的夹持半径等诸因素确定切削用量的方法。     

TbFe磁性薄膜的磁力显微镜成像研究

利用磁力显微镜（MFM）对TbFe磁性薄膜进行了不同抬举距离（分别为60～780nm）的磁力成像研究．在实验中，比较了低抬举距离（100nm以下）磁力像中样品-针尖的互相干扰；同时发现在高抬举距离磁力像中，随着抬举距离的增大，出现了与高凸起形貌对应的图像衬度特征，并随抬举距离的变化也改变着位置与强度，一直到抬举距离为仪器的极限值780nm时，形貌干扰仍未消失，对其形成机制进行了分析．     

Second-order Wagner theory of wave impact

The paper deals with the two-dimensional unsteady problem of the impact of a liquid parabola onto a rigid flat plate at a constant velocity. The liquid is assumed ideal and incompressible and its flow potential. The initial stage of the impact is the main concern in this study. The non-dimensional half-width of the contact region between the impacting liquid and the plate plays the role of a small parameter in this problem. The flow region is subdivided into four parts: (i) the main flow region, the dimension of which is of the order of the contact-region width, (ii) the jet-root region, where the curvature of the free surface is very high and the flow is strongly nonlinear, (iii) the jet region, where the flow is approximately one-dimensional, (iv) the far-field region, where the flow is approximately uniform at the initial stage of impact. A second-order solution in the main flow region has been derived and matched to the first-order inner solution in the jet-root region. The matching conditions provide an estimate of the dimension of the contact region for small time. Pressure distributions in both the main flow region and the inner region are derived. The accuracy of the obtained asymptotic formulae is estimated. The second-order hydrodynamic force acting on the plate is obtained and compared with available experimental data. A fairly good agreement is reported.     

摩托车起动电机安装设计及工艺保证

介绍摩托车起动电机的安装设计原则和方法，安装误差的形成与计算，以及达到安装设计要求的工艺保证措施，同时还分析了在检测和加工中所存在的一些做法。     

考虑次内力的桁架结构有限元分析

用有限元软件ANSYS对带式输送机栈桥的桁架结构进行了计算，结合实例着重探讨了考虑次内力时的桁架结构有限元分析在建模过程中需要解决的问题。     

波浪力计算中的一个新边界元方法

本文就波浪与结构物作用问题，提出了一个新的高阶边界元方法。较之Ｅａｔｏｃｋ Ｔｏｙｌｏｒ和Ｃｈａｕ的方法，本文在体内附助积分方程中应用了满足刚性水面条件和弱刚性底面条件的简单格林函数。计算速度相应地有所提高；漂浮结构的积分方程更为简洁；计算结果与Ｅａｔｏｃｋ Ｔａｙｌｏｒ和Ｃｈａｕ的方法具有几乎相同的精度和收敛速度。     

单线循环客运索道设计参数研讨(续三)

论证客运索道设计中的几个重要参数,建立抱索器钳口夹紧力计算公式,第一次给出钳口夹紧力与钢索金属断面积的比值,并进行了钢索弯曲应力计算公式的推导.     

考虑渗流力的基坑涌砂分析

本文根据基坑防渗帷幕周围的地下水渗流特征，分析了渗流力对基坑流砂的影响，提出了按涌砂安全系数进行防渗帷幕埋入深度计算的方法。     

冷弯型钢纵向变形的理论分析及计算

对冷弯型钢的纵向变形过程进行了力学分析，得到了变形微分方程，求得了转动角的理论公式，并对其变形形状进行了分析计算。     

Equilibrium Studies of the System'(Fe,Co)O'–(Fe,Co)3O4 by Solid-State emf Measurements in the Temperature Range 970 to 1370 K

The equilibrium reaction 3'(Fe, Co)O'( ss ) +1/2O₂ ( g ) ⇄ (Fe, Co)₃O₄( ss ) was studied in the temperature range 970 to 1370 K for seven different total compositions of molar ratios 0.5 < Fe/(Fe + Co) ≤ 1.0. The equilibrium pressures of oxygen were determined by using galvanic cells incorporating calcia stabilized zirconia as solid electrolyte and the Fe/Co ratios in the solid-solution phases by wavelength dispersive spectrometry microprobe analyses. The activities of 'FeO' in the cobaltowüstite phase were then derived from the experimental results obtained.