Study on Inclined Longwall Working Face Stress Distribution and Its Influence to Gas Pressure 倾斜长壁工作面应力分布及其对瓦斯压力影响规律研究
We are inclined to try to gaze at the blurry pictures, which is the visual habit, and thus the crystalline lens of eyes will be forced into a stress state for a long time. 人们的视觉习惯对越不清晰的图像越要盯着想看清楚,这样就会造成眼睛的晶状体长时间处于紧张状态。
Design and Construction of Inclined High-capacity Bunker for Tinpot Coal under High Stress and through Multi-layer in Deep Mine 深井穿层大容量倾斜劣质煤煤仓设计与施工
Historicism is inclined to stress the importance of prediction as one of the tasks of science. 历史决定论往往强调预测作为科学任务之一的重要性。
Aimed at the cracks in the concrete inclined web of concrete cable-stayed bridge because of the horizontal curvature of prestressing tendon in transverse beam, the tensile stress was analyzed with elastic theory. 分析了采用双边箱主梁截面的混凝土斜拉桥张拉横梁平弯预应力束时边箱斜腹板混凝土出现的横桥向裂缝,基于弹性理论分析了这种情况下混凝土主拉应力。
When the area of the two is different, horizontal strengthened bars are affected by inclined bars and inclined bars also change ultimate stress themselves. 当两者面积不同时,斜筋对水平筋极限应力的影响较大,且斜筋自身的极限应力也会变化。
A simulation of water-sediment flow in inclined chute was carried out to employ the new stress constitutive relation, and the calculated result was good agreement with the experiment data. 利用修正后的水沙流中颗粒流动应力关系,对缓槽水沙流动进行了模拟计算,获得了与实测资料一致的结果。
Section geometric properties of channels with different bending degrees of inclined simple edge stiffeners are gained by calculation. It is convenient for solving the buckling stress by hand. 通过计算得到了适合各种弯起角度的斜卷边槽形截面特性计算公式,方便了手算求解构件的屈曲应力。
The structure analysis of inclined pylon partial cable-stayed bridge without back-stays includes normal structure analysis, stress cross area analysis, construction stress analysis, wind vibration and earthquake analysis and stabilization analysis, five aspects. 斜塔无背索部分斜拉桥的结构分析内容主要包括一般结构分析、应力交汇区分析、施工控制分析、风振及地震分析、稳定分析等五个方面。
The trend of stress distribution on condylar cartilage was not compressive stress on the posterior inclined plane and tensile stress on the anterior inclined plane. 后牵引下颌时髁突软骨表面的应力分布趋势并不是后料面为压应力集中区,前斜面出现张应力。
Numerical simulation on growth of inclined crack and mixed stress effect for brittle materials 脆性材料中倾斜裂纹扩展的数值模拟与复合应力效应研究
To investigate the performance of condensation heat transfer on the surface with porous coating, a mathematical model for film condensation on an inclined plate with a porous layer coating was established by considering the liquid stress effect at the porous layer interface. 为探讨新的强化凝结换热的方法,考虑多孔层界面液体间的剪切效应,建立了蒸气在具有多孔涂层倾斜表面膜状凝结换热的物理数学模型。
The inclined column's failure due to a complex stress state resulted in a dramatic stress redistribution as well as a local compressing failure in the wall, in which its capability was not fully used. 正是由于转换梁在复杂应力作用下破坏,导致了薄壁柱中大幅度的应力重分布,使其产生局压破坏,且承载力不能得到充分发挥。
The model considers the forces acting on sliding bed in inclined pipe, shows approximate estimates of the pressure distribution and average concentration, and ignores shear stress between water lying in the clearance of solids and pipe wall in sliding bed. 该模型在考虑倾斜管道滑动床的受力情况的同时,对滑动床的压力分布、平均浓度作了一定程度近似估计,并且忽略了滑动床颗粒间隙中的水与管壁之间的剪切力。
This work elucidates the stability boundary for small perturbation and dynamic motion of an inclined spring slider fault system in which normal stress is coupled to shear stress on the sliding surface. 在与主压应力方向斜交的断层上,正应力与剪应力之间存在线性相关关系,以此为基础导出了小扰动条件下决定稳定性的临界刚度与滑动速率的关系。
The inclined assembly of turbine stationary blades can eliminate or reduce, to a great extent, the vibration of bucket which is incurred by flow exciting force, hence the dynamic stress of buckets. 汽轮机静叶采用非径向的倾斜安装,可以避免或极大地降低由于汽流激振力引起的动叶振动,减小动片的动应力。
The annular through-wall cracks in inclined piping elbows are established by APDL language of ANSYS. The stress intensity factor of KI is calculated under pressure and moment, then is transformed to shape factor F. 以ANSYS提供的APDL语言编写相应程序,建立含有环向穿透斜接弯管结构,分别在内压、弯矩载荷作用下计算给出了线弹性条件下的应力强度因子K1值并换算成形状因子F。
According to geometric relationship of Mohr circle, we propose making a parallel of the inclined section from basic point, which intersects the stress circle in order to get a forthright and audio-visual graphic method. 按莫尔园的几何关系,建议从基点作斜截面平行线与应为园相交,从而得到更简洁更直观的图解方法。
The bent structure should be strengthened with inclined shore, enhance the stiffness of horizontal direction of bent structure, increase the natural frequency of horizontal direction and decrease the vibration stress of horizontal direction. 排架结构应该用斜撑加固,增加排架结构水平方向的刚度,提高水平方向的自振频率,减小水平方向的振动应力。
With the aid of the 'pseudo-traction' method and the superposition technique, the stress intensity factors for materials such as rock with center inclined crack under compressive load are determinated and the effects of crack direction on the stress intensity factor are analyzed. 并利用伪力法和叠加原理给出了含中心斜裂纹的岩石类材料在压缩荷载作用下的应力强度因子的解法,分析了裂纹方向对应力强度因子的影响。
A proposal of graphic method that stress on any inclined section under plane stress is solved by using Mohr circle 利用Mohr圆求平面应力状态下任意斜截面上应力图解法的一个建议
Based on the ground behaviour of the gently inclined thin manganese deposit and the intact rock stress, a description is made on features and methods of mining the deposits, and the law and current status of the related underground pressure activities. 以缓倾薄层锰矿床的地层特征、原岩应力等为基础,简述了锰矿床开采技术特征,采矿方法及相应地压活动规律与现状;
The main reason of inclined pipe fracture was low frequency stress fatigue failure at tempera-ture field. 斜管开裂的主要原因是温度场下的低频应力疲劳破坏。
RESULTS: Under the maximum, vertical and inclined loads, the maximum Mohr stress values of the dentin of the two kinds of restorations were obviously smaller than the stretch limit of the strength of the dentin. 结果:在最大、垂直、斜向载荷下,两种修复体牙本质最大Mohr值均明显小于牙本质拉伸极限强度。
In the inclined shaft hoisting process, the wire rope, as the main stress components, has characteristics of complex stress variation and easy occurrence elastic beating. 煤矿斜井提升过程中,作为主要承载和传动部件的钢丝绳具有受力变化复杂,易发生弹性跳动等特点。
Inclined slope that may arise within a certain tensile stress. 斜边坡在一定范围内可能产生拉应力。
And design the inclined column by changing the oblique section inclined column section size to improve the stress distribution optimization method for the engineering design theory. 并提出了通过改变斜柱布置方案或计算调整斜柱截面积来改善双向斜柱间应力不均的设计方法,为实际工程设计提供理论依据。
Given the ownership of hospital, government may be inclined to regulation during some special period, but next they may lay particular stress on market competition. The result is that the hospital performance is improved incompletely. 在医院所有权格局既定的情况下,在特定时期,政府政策可能会过多倾向于管制;而另一个阶段则会偏重于引入市场竞争,这种改革的结果很难全面提升医院绩效。