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bidirectional stress
相关语句
  双向应力
     APPLICATION OF BIDIRECTIONAL STRESS ELLIPTICAL EQUATION IN COILED TUBING OPERATION
     双向应力椭圆方程在连续油管作业中的应用
短句来源
     And the strength of CT is calculated by bidirectional stress elliptical equation.
     文中引入双向应力椭圆方程来指导连续油管的强度计算
短句来源
     Based on the analysis of actual stress status of casing string during casing drilling,the bidirectional stress status analysis method and energy conservation principle are used to analyze and study the permissible torque of casing string under the axial force and shear force and put forward the method to calculate permissible torque and safety rotary speed of casing string under the rotation conditions,which offers the basis and method for selecting parameters for casing drilling operation.
     在分析套管钻井过程中套管柱实际受力状况的基础上,应用双向应力状态分析方法和能量守恒原理,分析和研究了套管柱在静态轴向力和剪切力作用下的许用扭矩,并针对套管钻井过程中套管柱旋转的工况,提出了套管柱在旋转状态下的许用扭矩及安全转速的计算方法,为合理地选择套管钻井作业参数提供了依据和方法。
短句来源
  双向受力
     The stress distribution of flat plates,that has circle hole under unidirectional or bidirectional stress, and the stress intensity factors of cracks or those adjacent to circle hole were calculated and then compared with the analytic solution.
     计算了圆孔平板在单向或双向受力下的应力分布以及中心裂纹、孔边裂纹的应力强度因子 ,并与理论解进行了比较 ,其 ANSYS解与解析解均比较接近 .
短句来源
     The stress concentration of circle hole is analyzed in terms of finite element method by ANSYS software in this article. The stress of distribution of flat plates which have circle holes under unidirectional or bidirectional stress is calculated and compared with the analytic solution.
     用ANSYS软件对圆孔板的应力集中进行了有限元分析,计算了圆孔平板在单向或双向受力下的应力分布,并与理论解进行了比较,其ANSYS解与解析解均比较接近.
短句来源
  相似匹配句对
     And the strength of CT is calculated by bidirectional stress elliptical equation.
     文中引入双向应力椭圆方程来指导连续油管的强度计算
短句来源
     and decentralization of the stress.
     要减少应力集中。
短句来源
     The Interpretation of Stress
     应激释义
短句来源
     APPLICATION OF BIDIRECTIONAL STRESS ELLIPTICAL EQUATION IN COILED TUBING OPERATION
     双向应力椭圆方程在连续油管作业中的应用
短句来源
     Bidirectional Texture Mapping
     双向纹理映射
短句来源
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  bidirectional stress
A bidirectional stress gage is employed in the new shear device.
      


After a completion of a freezing shaft liner construction, due to the thaw of freezing soil and subsidence of ground, a first negative frictional force was occured. A second frictional force was occured due to coal mining, mine water drainage, water table dropping in overburden, ground surface subsidence, ground compression and subsidence. Due to the seasonal exchanges and high temperature in summer, there is a temperature stress in the shaft liner and there is a negative frictional force in the shaft liner....

After a completion of a freezing shaft liner construction, due to the thaw of freezing soil and subsidence of ground, a first negative frictional force was occured. A second frictional force was occured due to coal mining, mine water drainage, water table dropping in overburden, ground surface subsidence, ground compression and subsidence. Due to the seasonal exchanges and high temperature in summer, there is a temperature stress in the shaft liner and there is a negative frictional force in the shaft liner. The present calculation of the frictional force is based on a pillar foundation and has some disadvantages. It is assumed that the negative frictional force along the surface of the freezing shaft liner are evenly distributed. Except the other loads, it only calculated the net weight of the shaft liner. It is to define that the failure stress due to the failure depth of overburden and bidirectional stress of shaft liner concrete is 1. 2 higher than the unidirectional stress. The negative frictional force at the shaft failure is calculated with a reverse calculationa method. Based on 10 failure shaft liner in Huibei and Datun coal mining areas as examples. records of certain data and in consideration of a safety figure, it has defined a negative frictional force for mine shaft liner in Huibei, Datun and Xuhui coal mining areas by using math statistical method. The negative frictional force can be used for the design of mine shaft liner.

论述立井井壁纵向负摩擦力存在的依据,目前计算负摩擦力以桩基为基础的计算方法存在欠缺,根据一定假设、井壁自重应力、井壁破坏深度和破坏应力,反算法推算出负摩擦力,再用数理统计和考虑适当偏安全,求出淮北、大屯和徐淮矿区立井井■摩擦力的建议值。

The main cause to produce longitudinal cracks on annular section concrete poles is studied. It is considered that some points in the pole are in the state of compression - tension bidirectional stresses due to combined actions of compression, temperature and dry - shrinking stresses,and this state leads to form longitudinal cracks. The theoretical analysis of force enduring state in the pole is made through tests,and 4 measures to prevent the longitudinal cracks of pole are submitted.

对环形截面混凝土电杆纵裂产生的主要原因进行了研究,认为:主要由于压应力、温度及干缩应力的共同作用,使电杆中有些点处于压—拉双向应力作用状态,导致纵裂产生。并通过试验,对电杆受力情况进行了理论分析,从而提出了防止电杆纵裂的4点措施。

Coiled Tubing( CT) is getting more and more attentions as a simple and quick snubbing unit in oil/gas fields. There are tensile force, compressive force, external or internal hydraulic pressure and other force acting on CT as the string is being either run into the hole or being pulled out of the hole. And CT has characteri- stics of light and soft compared with drilling tools and regular tubings. Thus, the property and quality of CT is very important for CT operating. In order to avoid yield...

Coiled Tubing( CT) is getting more and more attentions as a simple and quick snubbing unit in oil/gas fields. There are tensile force, compressive force, external or internal hydraulic pressure and other force acting on CT as the string is being either run into the hole or being pulled out of the hole. And CT has characteri- stics of light and soft compared with drilling tools and regular tubings. Thus, the property and quality of CT is very important for CT operating. In order to avoid yield failure and ensure safety and quality of CT operating, force strength of CT is considered. And the strength of CT is calculated by bidirectional stress elliptical equation.

连续油管作为简单、快捷的不压井修井设备 ,越来越受到油气田的重视。由于连续油管在起下过程中将受到拉伸力、压缩力、内外流体压力及其它井下各种复杂力的作用 ,以及与钻具、常规油管相比的轻、柔特性 ,所以连续油管的性能和质量对连续油管作业成功与否十分重要。为避免连续油管发生屈服形变 ,影响作业的安全和质量 ,充分认识连续油管受力形变具有重要的意义。文中引入双向应力椭圆方程来指导连续油管的强度计算

 
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