对轴

Based on the radial and axial solenoid formula, the axial and external magnetic field homogeneities of the detecting coils are analyzed in detail.

通过分析不同几何尺寸的线圈中轴线上磁场的变化情况，并借助直螺线管的径向和轴向公式，对轴外磁场均匀性进行了探讨。

V belt driving device developed is superior to flexible plate coupling and roller chain driving in VNH behavior, working endurance and axial and lateral offset tolerance.

所开发的三角带传动装置在振动噪声性能、作寿命和对轴向以及径向偏心的容忍度等方面都优于常用的柔性板式联轴器和高速滚子链传动装置。

A new distribution is proposed for the sake of the disadvantage of the constant circulation at present. The axial velocity in fornt of the blade intake along the radius reduces linearly, and the velocity trendline behind the blade export is close to parabolic curve, but the circulation should be decided by designers.

文中还对轴流泵设计有重要影响的流型进行了全面的分析和研究，指出现有等环量流型存在的不足，提出了改进流型设计：轴面速度在进口边前直线下降、出口边后呈抛物线分布、环量的分布规律由设计人员给定。

Poisson's Ratio—Ratio of lateral strain to axial strain in an axial loaded specimen.

泊松比—轴向负荷下试样侧向应变对轴向应变的比率，与刚性模量和杨氏模量有关

First, this thesis introduces basic theory of CBR , and studies many aspects of typical part design case , such as case representation, case retrieval, retain etc. Second, regards design code as case code in order to integrate the case with geometrical and non- geometrical information, and realizes the parametric modifying function for 3D solid model in the condition of Pro/E. Third, for the purpose of making true of system's aided design requirement, this thesis brings forward to create part design knowledge base with AI language CLIPS, and integrates the rule based KB into the system; finally, collects and summarizes the knowledge of shaft,gear,sleave, and a sample with ladder—shaft is shown in order to verify the correction of theory research.

首先，本文介绍CBR技术的基础理论，并重点研究典型零件案例的表示、检索、修改等功能；其次，以零件设计编号为案例编号实现对案例的几何与非几何信息的集成，并实现了三维实体模型在Pro／E环境下的参数化修改功能；再次，从系统辅助设计功能要求出发，提出将基于规则的知识库嵌入到系统内部，用人工智能语言CLIPS建立零件设计知识库；最后，对轴类、齿轮类、盘套类零件案例知识进行收集、总结，并通过阶梯轴设计实例验证了理论研究的正确性。

Then we use IEEE First Benchmark system model and the 500kV system which contain 500MW and 600MW turbo-machines, as typical examples, the shaft systems without exciter in these examples are also analyzed on its impact on torsional oscillation.

首先对采用静止励磁方式的汽轮发电机轴系建模进行了说明；然后以IEEE次同步谐振标准模型和东北电网中伊敏电厂计划安装的500MW和600MW汽轮发电机组为典型算例，研究了改用静止励磁方式对轴系扭振的影响。

The distribution of gear's contact stress, root stress, and contact engagement line in the engagement situation of gear pairs, were obtained on the base of explicit integration method. 3. Adopting the method of system matrix, the torsional vibration differential equation of general shafting was gained. The simple harmonic forms of excitation torque under the normal combustion or piston flameout of in-line engine and v-type engine were analysed. The decoupled algorithm of free vibration and forced vibration and the solution to the vibration damper's energy of resistance and the off-resonance calculation were studied. The sensitivity formulations of the natural frequency and vibration mode to physical parameters of system were derived by solving the eigenvalue problem. These sensitivity formulations provided the theoretical base for the dynamic modification of structure.

运用系统矩阵法建立了轴系的扭振微分方程，并对直列和V型发动机在正常发火和气缸熄火工况下的激振力矩进行了详细的简谐分析；基于精确方法推导了自由振动和强迫振动的解耦算法，给出了能量法计算中的减振器阻尼功求解和非共振计算方法；并研究了曲轴系扭振非线性分析中的变惯量问题，得到了单缸转动惯量的精确求解公式以及变惯量和固有频率的关系式；最后，从特征方程和振型正交性出发，推导了固有频率和振型对轴系转动惯量和刚度等物理参数的灵敏度，为扭振系统的结构动力学修改提供了理论基础。

Based on an analysis of distribution pattern of hydrocyclone"s axial velocity, by changing the inlet flow rate Qi and split ratio Fand making an investigation in the effect of Qi and F on axial velocity field, the factors causing the forming of short-cut circuit and circulating flow are found. It is considered that the short-cut circuit and circulating flow are produced by the structure of the hydrocyclone, and can"t be eliminated completely, though they interfere the flow field inside a hydrocyclone and affect the separation accuracy. Test results show that, by increasing Qi and F and controlling them in a certain range, the separation efficiency of the hydrocyclone can be improved.

在研究旋流器轴向速度分布规律的基础上，分析了短路流与循环流的形成原因，试验研究了改变操作参数，即改变入口流量Qi与分流比F对轴向速度场的影响认为短路流与循环流是由旋流器结构决定的，很难完全消除，它们干扰了旋流腔和大锥段的流场，在一定程度上也影响了分离精度试验结果表明，加大入口流量Qi与分流比F，并将其控制在一定范围内，便可提高分离效率这项研究对水力旋流器分离机理的认识与实际应用均有重要意义

Through the calculation and analysis for additive stress of main reducing gear's fast speed shaft in three high mill of Jisteel medium plate plant,expounds that the additive stress produced in the pro cess of working of parts for rolling mill, shearer and blanking press with balance wheel to the influence of shaft's strength is not to be ignored.

通过对济钢中板厂三辊轧机主减速机高速轴的附加力的计算与分析，阐明轧机，剪切机，冲压机械等带飞轮的部件在工作过程中所产生的附加应力对轴强度的影响是不应忽视的，在设计，维护和修理时要加以注意。

According to the power transmission shaft and the drive shaft speed design and analysis of the axial force, a strength of the shaft Verification, and select bearings and bearing strength calculation.

根据轴传递的功率及转速设计出各传动轴，并分析轴的受力情况，对轴进行强度校核，并选择轴承和轴承强度计算。

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