向轴的

A damage identification method based on axial vibration was presented on the basis of theoretical derivation axial vibration differential equation and analytical solution of three kinds of support form.

在理论上推导悬臂梁轴向振动微分方程及其3 种支座形式的解析解的基础上，提出了一种基于轴向振动的结构损伤识别方法。

As thin-walled bars, stiffener s subjected to the axial pressure in ship panels may trip around their roots.

作为薄壁杆件，船体加筋板架中的加强筋在轴向压力的作用下可能发生绕定轴的侧向屈曲。

The third thermal boundary condition equation joined with the degradation rate of interior wall was used to get the contour of interior wall vs. time under the condition of identical heat flux between fluid and solid in axis direction. The numerical simulation results agrees well with that of measurements.

在气流与固壁之间的热流量沿轴向一致的条件下，通过加入降解退移速率的第三类热边界条件方程，求解出不同时间管内壁面轮廓沿轴向变化情况，模拟值与试验结果基本吻合。

At present,petal style cardan shaft is used and manufactured in China generally.

目前 ，国内生产使用的万向轴均为花瓣式万向轴，其结构简单、加工速度快，但其寿命极短，成为制约螺杆钻具寿命的关键部件。

This paper analyses axial effort between bend and adjacent straight pipe by integral calculation.In this paper it deduces the computing formula of axial effort,which lays a foundation of stress analysis on bend.

项江从弯管的受力分析入手，通过积分计算，分析了弯管与相邻直管段的轴向作用力，并推出了该轴向作用力的计算公式，为弯管的应力分析打下了基础。

Second, based on the spherical vector wave function in uniaxial anisotropic medium, and the first, second, third and fourth spherical Bessel functions satisfy the same differential equation and recursive formula. The scattering fields in terms of spherical vector wave function from a uniaxial anisotropic spherical shell and an anisotropic uniaxial-coated conducting sphere by a plane wave are derived. The electromagnetic fields in uniaxial anisotropic medium and free space can be expressed in terms of spherical vector wave functions in uniaxial anisotropic media and isotropic medium.

二、在建立均匀各向异性单轴介质球矢量波函数理论的基础上，利用二阶线性偏微分方程的性质和第一、第二、第三和第四类球Bessel函数满足相同的微分方程和递推关系，我们分别研究了单轴介质球壳和单轴介质涂覆导体球对平面波的电磁散射特性，首先给出了各个区域的电磁场用球矢量波函数来表示的解析表达式，进而利用电磁场在边界上满足电磁场切向连续的边界条件和球谐函数的正交性，得出了各向异性单轴介质球结构中电磁场用球矢量波函数表示的系数所满足的矩阵方程。

A miniature motor 1 includes: a motor case 2; a gear case 5 connected to the motor case 2, for pivotally supporting an output shaft 15; a brush holder 30, 30 ' for holding a brush 17 and attached to the gear case 5; and a brush holder attaching portion 7, 7 ', which is formed into a recess-shape, into which the brush holder is press-fitted in the axial direction of the output shaft, the brush holder attaching portion being formed integrally with the gear case.

本发明公开了一种微型马达(1)，包括：马达壳体(2)；连接到马达壳体(2)上的齿轮箱(5)，用于可枢转地支撑输出轴(15)；电刷托架(30、30′)，用于保持电刷(17)并安装到齿轮箱(5)上；以及电刷托架安装部分(7、7′)，该安装部分形成为凹陷形状，电刷托架沿着输出轴的轴向压配合到该安装部分内，电刷托架安装部分与齿轮箱一体地形成。

The rolling wheel of D51 rolling loop machine is fixed with an expansion ring and its axial locating accuracy is high so the processing difficult of rolling wheel is reduced.

D51型辗环机辗压轮系采用涨圈固定，轴向定位精度高，简化了辗压轮的机械加工；下支承轴端圆锥孔后面设有方孔，辗压辊与下支承轴的联接可靠，更换容易，减少了非生产性工作消耗，提高了劳动生产率。

Firstly,the rule and cause of rupture failure for the cardan shaft of the DF 4D type freight diesel locomotive are discussed and Then,the methods on how to deal with the rupture failure of the cardan and the other failures resulted from the different small fuel quantity of different injection pump equipped on the same diesel engine are introduced.

阐述了东风4D型货运机车万向轴断裂的规律，进行了原因分析，介绍了万向轴断裂事故处理的实例，并对同台柴油机上各喷油泵小油量相差大易引起的其它后果进行了分析，最后提出了具体的预防措施及操作程

Based on theory and test, finally, the measurements which may reduce axial force are given, for example, strengthening the management of size and clearances in roll systems and maintenance of roll bearings, limiting rolling technological conditions, increasing the axial flexibility, releasing axial binding forces and establishing axial flexible lock mechanisms, etc.. So it provides the constructive suggestions for preventing from damage of roll bearings.

在理论分析和实验验证的基础上，分析了轧辊轴承的受力特点和破坏原因，提出了降低轴向力的对策，其中包括加强尺寸及间隙管理、限定工艺条件、加强轴承的维修与管理等&硬&性措施，以及增加辊系轴向柔度、施放约束、建立柔性锁紧机构等&软&性措施，为现场解决轴承损坏问题提供了建设性参考意见。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。