轴颈

It is clear that, when a tilting pad is in static equilibrium, the tilting angle is related to the parameters of pad, clearance ratio as well as initial eccentricity, and unrelated to the speed of axle journal, viscosity of oil film, etc.

可见，可倾瓦瓦块达到静平衡时，其摆角与瓦块参数、间隙比及原始偏心率有关，而与轴颈转速、油膜粘度等参数无关。

By chosing the material of axle sleeve with high strength and decreasing the length of contact face for axle sleeve and axle neck, the lubrication condition of frictional pairs was improved, and the wear was decreased.

结果表明，通过选用强度优异的轴套作为摩擦副，缩减沟槽尺寸以增加轴套与轴颈的接触面长度，改善了摩擦副的润滑状况，减少了磨损，满足了生产需要。

It is very important to understand the effect of oil film reformation and rupture boundary condition on the journal bearing performance when journal, bearing block perturbation and inlet oil pressure exist.

由于轴颈、轴承扰动的作用和进油压力的不同，油膜形成和破裂边界也发生相应的变化，因此有必要研究上述变化对轴承性能的影响。

Oil film reformation and rupture boundary conditions change with the journal, bearing block perturbation and inlet pressure.

由于轴颈、轴承扰动的作用和进油压力的不同，油膜形成和破裂边界也发生相应的变化，因此有必要研究上述变化对轴承性能的影响。

Numerical analysis has been performed to understand the effect of journal and bearing block perturbation, inlet oil pressure on film reformation, rupture boundaries and the static characteristics of bearing.

2分析了轴颈、轴承座扰动和进油压力对边界条件和轴承静特性的影响。

An experimental rig was used to analyze the oil film flow state of the journal and bearing block excitation. Oil film flow state in the course of changing eccentricity, excitation method, excitation force and frequency were studied.

5通过改造的轴承实验台，完成了轴颈同期涡动和轴承座振动对滑动轴承油膜流态影响的实验，对偏心率、激振方式、激振力和激振频率变化过程中的油膜流态进行观察和测试。

Lubricant dynamic characteristics in lubricant region of the four-leaves bearing were researched by using boundary element method,the distribution of flow field in lubricant and the pressure on the surface of bearing neck and bearing was obtained.

用边界元方法对复杂轴承中四叶轴承的流体动力学特性进行了分析，得到了轴承润滑区的流场分布、轴颈表面和轴承内表面上的压力分布。

The failure characteristics of large pump units are that the influence is great, the reasons are complicated, it is difficult to observe and the failure rate is hard to determine. The main failures of large pump units are as follows: burn out of thrust bearing liner of the motor, failure of stator and rotor coil insulation of the motor, wear-and-tear of guiding bearing and shaft neck of the pump, breakdown of adjusting mechanism of the pump blade, and pump cavitation. The reasons of main failures are studied in design, structures, installation and operation etc.

分析了大型水泵机组故障的特点：影响大、原因复杂、隐蔽性强和故障率确定难；确定了主要故障形式：电机推力瓦烧损，电机线圈绝缘失效，水泵导轴承及轴颈磨损，叶片调节机构失效，水泵汽蚀；从设计、结构、安装和运行等方面研究了主要故障的原因。

Based upon SIMPLEC algorithm of CFD analysis, air film flow in the oil-free air bearing is simulated to illustrate its working principle, as well as performance's influence from air compressibility, shaft eccentricity ratio, clearance size and rotating speed.

基于计算流体动力学中的SIMPLEC算法，从流动模拟分析的角度对动压气膜轴承的工作机理，包括气体可压缩性，轴承间隙大小，轴颈偏心率及轴承运行线速度的作用等作了分析。

Through analyzing the result, we can draw a conclusion that it is an effective way to increase the thickness of crank web than to increase the shaft diameter by the way which improves the rounded stress of the crankshaft from structural.

通过对计算结果的分析，得出在结构上改善曲轴过渡圆角处应力集中时，增加曲柄臂厚度与增加轴颈直径是较有效的方法，为某增压发动机曲轴的结构设计提供了理论依据。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。