frictional resistance

On fast calculation table of frictional resistance in cooling water system

冷却水系统沿程阻力快速计算表

In view of existing problems in the conventional measurement, an improved measuring method for tube frictional resistance loss and the influence of the bell mouth etc is developed to make the measurement more reasonable and accurate.

针对常规测试中存在的问题，改进了管道摩阻损失的测试方法，消除了喇叭口等因素影响，使得管道摩阻测试更加合理和准确。

Rigid-plastic model was used to analyze the effection of supports frictional resistance on beam-ends displacement and results indicated that the supports frictional resistance should be include During the cable-stayed bridge displacement prediction.

其中采用刚-塑性刚度模型研究了支座摩阻力对静态下梁端位移的影响，指出在斜拉桥梁端纵向位移计算时需考虑支座摩阻力的影响。

The distribution of downward frictional resistance of bearing pile under flexible foundation shows inverted triangle shape when the load-level is lower and shows inverted trapezoid shape when the load-level is higher.

柔性基础支撑式桩侧出现向下的摩阻力，低荷载水平时呈倒三角形分布，高荷载水平时呈倒梯形分布；桩顶端发生明显向上刺入变形。

In severe creasing the frictional resistance plays only a minor role in determining the crease resistance.

在严重的折皱作用下,摩擦阻力在织物抗折皱能力中仅居次要地位.

Discussion on increasing slim hole drilling speed Increasing Peripheral Frictional Resistance of Bore-hole Pile

提高钻孔灌注桩周边摩阻力

Gap element method for frictional resistance analysis of whole drill string in prospecting horizontal well

探井水平井整体钻柱摩阻力分析的间隙元法

Test study on frictional resistance of compression dispersive prestressed anchor in saturated mealy sand SATURATION MEASUREMENT TECHNOLOGY FOR RESERVOIR PHYSICAL MODELLING UNDER HP/ HT CONDITIONS

饱和粉砂土中压力分散型锚杆摩阻力试验高温高压油藏物理模拟饱和度测量技术研究

Although few tens of formulas of calculating frictional resistance coefficient have been summarized in the European and American countries, these formulas still exist in a larger error when applied to the Sichuan gas main.

虽然欧美等国已总结归纳了数十个摩阻系数计算公式，但这些公式应用在四川输气干线上仍有较大偏差。

A study of frictional resistance of archwires and ligating methods

弓丝与结扎方法对摩擦力影响的实验研究

It has enough energy to overcome the frictional resistance in valves and registers.

它有足够的能量克服阀门和记录器的摩擦阻力.

An experimental study on dynamic frictional resistance between brackets and archwires under the wet condition

湿润状态下托槽与弓丝间动摩擦力的实验研究

Analysis and Discussion on the frictional resistance of soil around the pile of high-pressure spiral jet grouting

高压旋喷桩桩周土摩阻力的分析与探讨

The ratios of frictional resistance increment in the ultimate bearing capacity increment were 56 % ~88 %.

侧阻力增量对桩极限承载力的贡献为56%~88%.

Direct calculation method of air duct frictional resistance

风管摩擦阻力的直接计算方法

By a case study, obtains the following results: the tree-shaped chilled water pipe network in district cooling systems should not be designed by equal specific frictional resistance or by equal velocity;

通过实例计算，得到以下结论：区域供冷系统冷水管路的设计不能按传统的等比摩阻或等流速设计思想进行；

Different conservation temperatures will cause different growth rate of pile tip stress and pile side frictional resistance.

不同的养护温度造成了不同的桩端应力增长速度和桩侧摩阻力增长速度。

The sliding frictional resistance on the shear deformation zone increase with angle ψ.

试样在剪切变形区所受到的滑动摩擦力也随ψ角的增加而增大。

PURPOSE: To study the effect of 4 archwires and 2 ligating methods on the frictional resistance.

目的：了解4种弓丝和2种结扎方法对托槽与弓丝摩擦力的影响。

Study on Pore Water Pressure of Saturated and Disturbed Sandy Loam During Cyclic Loading; Test study on frictional resistance of compression dispersive prestressed anchor in saturated mealy sand

饱和粉土振动孔隙水压力的试验研究饱和粉砂土中压力分散型锚杆摩阻力试验

The bearing capacity of these piles consists of frictional resistance of each stratum of soil and rock, and the end bearing of rock.

桩基设计应以桩身混凝土强度、地基对桩所能提供的承载力及桩体总沉降量作为三个控制标准进行设计；