It is proved by experiment that the backing pump increases the compression ratio of H 2 and obtains the lower ultimate pressure of the system considerably.
实验证明 ,通过串联一台分子泵 ,可以有效地提高系统对氢气的压缩比 ,显著提高系统的极限压强。
Effect of media flow velocity on limit pressure of pipes during in-service welding;
介质流速对在线焊接管道极限压力的影响
Finite element simulation of limit pressure pipeline with cracks using critical crack-tip-opening-angle;
以临界CTOA为参量的含裂纹管道极限压力有限元模拟
Based on the numerical results,the remaining strength factor of the pipe can be obtained and limit pressure can be predicted.
运用有限元法对不同壁厚的管道进行在线焊接时的温度场进行了数值模拟,内部介质流动对焊接温度场的影响通过确定介质与管壁的换热系数来考虑,并根据温度计算结果,获得管道的剩余强度因子,进而获得管道的极限压力。
The load P-δ (normal deflection of plate center) curves, ultimate pressure P_(cr) of moderately thick plates were obtained through the test.
设计了四边简支板稳定性试验的加载、支承装置及试件,进行了中厚度钛合金板面内双向受压稳定性试验,测出了相应的极限压力Pcr;并与ANSYS软件的非线性有限元计算的结果作了比较,两者基本吻合;说明中厚度钛合金板采用有限元稳定性分析,选用20节点solid186体单元并计及材料非线性,是可靠有效的。
In this paper, the finite element technique based on the hypotheses of ideal elastic plastic material and small defection was applied to systematically analyze the affections of plastic ultimate pressure, the type of the elements and constraints to the value of the numerical solution for welded pipe with T junction when the ratio of d/D is greater than or equal to 0.
5管道焊接三通的塑性极限压力及网格密度、单元类型和约束形式对数值解的影响，结果表明，在管径比 d/D≥ 0。
The effect of design on the performance of rotary plunger vacuum pump is discussed mainly by way of analyzing such influencing factors as the ultimate pressure, pumping speed,power and noise on the pump operation.
主要讨论设计参数对滑阀真空泵性能的影响,对影响滑阀泵的极限压力、抽气速率、功率及噪声等性能的因素进行了具体的分析,并提出了有利于提高滑阀真空泵性能的设计思路。
Determination of extreme pressure for in-service welding of pipelines under repair
非停输管道焊接修复极限压力设计
An numerical model is created to calculate extreme pressure of internal corroded pipeline,which is based on finite element software and adopts the model of exponential kinematic material,the method of defect dissected by orthogonal areas and entire model meshed with hexahedron.
利用有限元软件,采用幂硬化随动强化材料模型、缺陷正交面切割法和模型完全六面体单元网格化方法,建立了数值分析模型,在规范B31G的基础上求得准确度更高的内腐蚀管道极限压力拟合公式,并用实际算例对其进行了验证。
The choice of pumping system depends on required pumping speed, ultimate pressure attainable(in a reasonable time).
泵系统的选择取决于所需要的抽速，能达到的极限压强（在适当的时间内）。
crushing strength at elastic limit
弹性极限的抗压强度
Research of Ultimate Compressive Bearing Capacity of Circular Tubular Y-Joints Reinforced with Doubler Plate;
垫板加强Y型圆钢管节点受压极限承载力研究
Ultimate Bearing Capacity Analysis of High-Strength Single-Angle Compression Member Eccentrically at One End
高强单角钢一端偏心压杆极限承载力试验研究
Determination of Tensile Strength Based on Instrumented Indentation Experiments
基于仪器化压入测试方法的材料强度极限的测定
The Performance of Cold-formed Square Steel Columns Ultimate Axial Compressive Stress under Different Ratio of Radius to Thickness
弯角半径不同对冷弯矩形钢管柱轴心受压极限强度的影响
DIRECT STRENGTH-METHOD STUDY ON ULTIMATE LOAD-CARRYING CAPACITY OF ECCENTRICALLY LOADED LIPPED CHANNELS
卷边槽钢偏心受压构件极限承载力的直接强度计算方法研究
In-plane inelastic stability and ultimate strength of uniform I-section three-hinged circular steel arch in uniform compression
均匀受压工字型等截面三铰圆弧钢拱的平面内稳定性和极限强度
The correlation between the compressive strength and axial tensile strength of RCC with placing joint and ultimate tensile strain of placing joint of RCC layers have been obtained.
通过试验研究给出有层面碾压混凝土抗压强度、面轴拉强度与层面极限拉伸值间相关关系。
steam limit pressurestat
蒸汽极限自动调压器
repeated bending stress strength
反复弯曲疲劳强度极限
The Methodology and Analysis of Computing the Ultimate Strength of Hull and Damaged Hull;
船体极限强度及受损船体剩余极限强度分析
Sensitivity Analysis on the Elastic Buckling and Ultimate Strength of Continuous Stiffened Aluminium Plates Under Combined In-Plane Compression and Lateral Pressure
平面内压力和侧向压力组合作用下连续加劲铝板弹性屈曲和极限强度的敏感性分析
The strong limit theorems for finite nonhomogeneous Markov chains;
有限非齐次马尔可夫链的强极限定理
Investigation on the Limit and Burst Pressures for the Vessels with Nozzle;
带接管压力容器极限压力及爆破压力的研究
The Research on Finite Element Plastic Limit Analysis Method Subjected to Pore Water Pressure;
考虑孔隙压力的有限元塑性极限分析法研究
UPPER BOUND SOLUTIONS OF LIMIT ANALYSIS FOR LATERAL PRESSURE OF SQUAT SILOS
浅圆仓散料侧压力的极限分析上限方法
Finite Element Method to Calculate Extreme Pressure of Internal Corroded Pipeline
基于有限元的内腐蚀管道极限压力计算