查询词典 ovalization

2 This lateral support is essential in order to minimize ovalization or deformation of the pipe under earth and traffic loads.

水平支撑对减少管道因负载土层和地面交通的负荷而扁平化或者变形来说非常重要。

Cross-section ovalization is one of the flaws in the thin-walled tube NC bending process.

截面畸变是薄壁管小弯曲半径数控弯曲成形容易出现的成形缺陷之一。

The mechanical behavior measured includes: the relationship between the moment and curvature, and the relationship between ovalization and curvature.

本文目的是实验研究316L不锈钢管在循环弯曲负载时的力学行为及皱曲损坏。

In this paper, the stress and strain distribution, tube wall thinning and the cross section ovalization in Aluminum alloy thin-walled tube NC bending with small bending radius have been investigated through experimental method combined with finite element method and theoretical analysis.

本文采用实验法，并结合有限元模拟和理论解析法，研究了与铝合金薄壁管小弯曲半径数控弯曲成形质量密切相关的应力应变分布、壁厚变化和截面畸变等关键问题。

In order to guarantee safety and stability, and to minimize costs for repair and maintenance, it is desirable to make a suitable rule determining the range of out-of-round, and to detect、remove and repair the non-roundness wheels in time. The paper analyzes wheel ovalization, which is called the second order periodic non-roundness of wheels.

为保证此方面的行车安全和稳定，提高铁路运输维护维修的经济效益，需要制定合理的依据，确定车轮非圆化的允许范围，及时对非圆化车轮进行检测、更换和镟修。

During the design of perforated liner casing, small phase angle and proper larger diameter and density of perforation are adopted and initial ovalization is constrained strictly in order to improve the collapse pressure and area of passage.

建议在实际煤层气完井筛管设计过程中，采用小相位角，严格控制初始椭圆度，适当增加射孔直径和射孔密度，以达到提高筛管抗挤强度和增加过流面积的目的。

Include the important Brazier buckling, which occurs during the ovalization.

在计算过程中改变几何或者材料参数能够模拟出管状植物茎不同的屈曲形式。

Owing to the progressive accumulation of the ovalization of the tube cross-section during cyclic bending, the tubes buckle eventually.

从椭圆化－曲度的实验曲线中显示，在对称曲度循环弯曲负载时椭圆化会渐增且呈对称棘齿的变化，椭圆化会一直增加直到钢管发生皱曲。

The plastic hinge model of perforated liner casing is built up to calculate the collapse pressure according to the strength and deformation behavior of perforated liner casing subjected to external pressure. The calculation equations of collapse pressure of perforated liner casing with initial ovalization are deduced by energy method. The influences of phrase angle, diameter of perforation, shot density, initial ovalization, diameter-thickness ratio and yield stress on the collapse pressure of perforated liner casing are studied. The model and equations are used to calculate the collapse pressure of an actual perforated liner casing as example.

摘摇要：根据煤层气完井筛管受力特点建立了筛管受力的塑性铰模型，利用能量法推导出带有初始椭圆度筛管抗挤强度的计算公式，分析了相位角、射孔直径、射孔密度、初始椭圆度、径厚比和屈服强度等影响因素对筛管抗挤强度的影响规律，并对某煤矿使用的筛管抗挤强度进行了计算，与已有的实验数据和有限元计算结果进行了对比。

The plastic hinge model of perforated liner casing is built up to calculate the collapse pressure according to the strength and deformation behavior of perforated liner casing subjected to external pressure. The calculation equations of collapse pressure of perforated liner casing with initial ovalization are deduced by energy method. The influences of phrase angle, diameter of perforation, shot density, initial ovalization, diameter-thickness ratio and yield stress on the collapse pressure of perforated liner casing are studied. The model and equations are used to calculate the collapse pressure of an actual perforated liner casing as example.

根据煤层气完井筛管受力特点建立了筛管受力的塑性铰模型，利用能量法推导出带有初始椭圆度筛管抗挤强度的计算公式，分析了相位角、射孔直径、射孔密度、初始椭圆度、径厚比和屈服强度等影响因素对筛管抗挤强度的影响规律，并对某煤矿使用的筛管抗挤强度进行了计算，与已有的实验数据和有限元计算结果进行了对比。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。