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1)  critical axial load
临界轴压
1.
In order to obtain the best included angle between ribs,this paper presents a program to calculate the critical axial load of stiffened cylindrical shell considering the coupling effect of the ribs’ axial-loading stiffness and bending stiffness.
为得到最佳的网格角度,考虑了筋条拉、弯的耦合影响,编写了计算网格加筋中长圆柱壳临界轴压的程序。
2)  critical pressure differential
临界压差
1.
The analysis of critical pressure differential of one gas fie.
通过气藏孔隙压力和岩石骨架应力分布规律分析,以Bratli孔穴稳定准则为出砂判据,建立了固结砂岩储层气井裸眼完井出砂临界压差的确定准则,并利用该准则对南海某气田出砂临界压差进行了分析评价,为最大限度地提高气井产量,减少气井出砂对管壁冲蚀提出了可靠依据。
3)  critical pressure
临界压力
1.
New theory in the front of theoretical basis research of molecular thermodynamics 4: on molecular structure of organic compound and theoretical equation of critical pressure;
分子热力学前沿基础领域中的新理论4:论有机纯质的分子结构与临界压力理论方程
2.
Prediction of the critical pressures of alkanes using a quantitative structure property relationship;
应用QSPR方法预测烷烃的临界压力
3.
The critical pressure of two spans beams with one end fixed and the other hinge joined;
一端固支一端铰支二跨梁屈曲的临界压力
4)  critical drilling pressure
临界钻压
1.
The method that resolved the critical drilling pressure and critical length has been pointed out under its weight and the mechanics characteristics of BHA have been analyzed.
介绍了小口径孔底动力钻具组合造斜的影响因素及预测方法,确定了BHA自重作用下临界钻压及临界长度,并对钻具的力学特性进行了分析。
5)  critical voltage
临界电压
1.
Three-dimensional analysis of the static voltage stability and the critical voltage in power system;
电力系统静态电压稳定的三维分析与临界电压
2.
Based on this,the critical voltage and the critical energy value of load node before and after compensation are successfully computed through adopting the preserving nonlinear flow algorithm(PNFA) integrating the optimal multiplier.
在此基础上,通过引入优化乘子的保留非线性潮流法(preserving nonlinear flow algorithm,PNFA)计算得到的系统各负荷节点临界电压来求取其补偿前后的临界能量值,然后根据各临界能量值得到补偿前后系统的无功裕度,并分析电容器并联补偿对系统电压稳定的影响及补偿前后无功负荷比例增长时各节点电压相角、负荷节点需耗能量值的变化趋势。
3.
It also presents us the counting method of critical voltage and maximun active power in stable running system,and analyses the influence of load on voltage stability in power system.
根据系统等效的方法 ,建立了电力系统任一节点电压与有功功率、无功功率的数学模型及对应的特性曲线 ,给出了系统稳定运行临界电压和极限有功功率的计算方法 ,分析了负荷对电力系统电压稳定性的影响 ,提出了提高电力系统电压稳定性应采取的有效措施 。
6)  critical flow pressure
临界流压
1.
In viewing of the problems existing in prediction offluid production when designing large pump replacement program, a concept of critical flow pressure is introduced according to the real situations of production.
针对在换大泵方案设计中,油井产液量的预测方法存在的问题,结合生产实际情况,引入临界流压的概念。
补充资料:轴的临界转数
分子式:
CAS号:

性质:弹性轴在回转时,它的轴心在空间是一个挠性曲线。在一般情况下,这个曲线以静平衡位置进行回转振动。当回转体自振频率和强制回转频率一致的时候,则产生共振现象。这时,轴的挠性曲线挠度最大,这个特定转数称为轴的临界转数。在接近临界转数的条件下运行可能造成回转轴的破坏,故在确定回转体的转数时必须使其远离临界转数。轴的临界转数和轴的直径、支点距离、支撑情况有关,即与体系的刚性有关。体系的刚性大临界转数就高。刚性小的轴临界转数低。小于临界转数运转的轴称为刚性轴,超过临界转数运转的轴叫挠性轴。

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