1) waving blank holding force
波动压边力
2) dynamic pressure boundary condition
波动压力边界
1.
Three dimensional transient simulation is an effective way to explore the transient intake flow characteristics under dynamic pressure boundary condition.
在试验的基础上运用瞬态数值模拟方法,以四气门汽油机进气过程为例,对均值压力边界和瞬态波动压力边界下的进气过程进行了模拟计算及比较,结果表明进气压力波动对缸内的宏观气流运动影响较大,加强了缸内滚流运动强度的波动。
3) pressure fluctuation
压力波动
1.
Chaotic analysis of pressure fluctuations in impinging region of SCISR;
浸没循环撞击流反应器撞击区压力波动的混沌分析
2.
Simulation experiment on oil recovery mechanism in pressure fluctuation;
压力波动采油机理的模拟实验
3.
Hurst's analysis of pressure fluctuation in gas-solid spouted beds;
气固喷动床压力波动的Hurst分析
4) pressure fluctuations
压力波动
1.
Periodicity analysis of pressure fluctuations in the impinging entrained-flow gasifier;
撞击式气流床气化炉压力波动的周期性分析
2.
Characteristics of differential pressure fluctuations in vertical upward gas liquid solid three phase flow under the condition of normal temperature and normal pressure were studied by using the signal process techniques.
运用统计分析方法 ,对垂直上升管气 液 固三相流不同流型时的压力波动信号特性进行了分析研究 ,提出了基于压力波动特征的三相流流型的客观识别方法 ,得到了不同流型所对应的气速范围。
3.
Many authors randomly chose different compact support Daubechies wavelet to analyze pressure fluctuations in fluidized beds.
基于床层压力波动信号的小波分析已用于流态化的研究。
5) Surge pressure
波动压力
1.
In this paper,an accurate model predicting steady surge pressure resulting from running or pulling a pipe in a vertical wellbore has been developed on thebasis of Herschel-Bulkle.
本文以该模式为基础,从理论上推导并建立了直井起下钻或下套管过程中稳定层流条件下钻井液粘性产生的波动压力计算模式──—赫谢尔-巴尔克莱液体稳态波压模式。
2.
5 mm casing,formation fracture pressure and well bore surge pressure in horizental wellbore designs are studied,and a conclusion is drawn that the key factor of horizental wellbore designs is to determinate the set depth of φ244.
5mm套管下深的确定原则、地层破裂压力及并眼波动压力等问题进行了讨论。
3.
Calculation method of surge pressure caused by mud viscosity during drilling pipes or casings moving through Cas.
波动压力是影响井眼稳定的主要因素。
6) Fluctuation pressure
波动压力
1.
A Prediction Model for Quasi-Momentary State Well Fluctuation Pressure;
拟瞬态井内波动压力预测模型
补充资料:各种材料拉深时的单位压边力数据
在单动压力机上拉深时的单位压边力
材 料 | q/MPa |
铝 | 0.8~1.2 |
紫铜,杜拉铝(退火的或刚淬火的) | 1.2~1.8 |
黄铜 | 1.5~2.0 |
压轧青铜 | 2.0~2.5 |
20钢、08钢、镀锡钢板 | 2.5~3.0 |
软化耐热钢 | 2.8~3.5 |
高合金钢,高锰钢,不锈钢 | 3.0~4.5 |
在双动压力机上拉深时的单位压边力
工件复杂程度 | q/MPa |
难加工件 | 3.7 |
普通加工件 | 3.0 |
易加工件 | 2.5 |
材 料 | 单位压边力q/MPa |
铝(退火状态) | 0.8~1.2 |
铝(硬态) | 1.2~1.4 |
黄铜(退火状态) | 1.5~2.0 |
黄铜(硬态) | 2.4~2.6 |
铜(退火状态) | 1.2~1.8 |
铜(硬态) | 1.8~2.2 |
康铜BMn40-1.5(硬态) | 2.6~2.9 |
可伐合金4J29(退火状态) | 3.0~3.3 |
钼(退火状态) | 4.0~4.5 |
软钢t<0.5mm | 2.5~3.0 |
软钢t>0.5mm | 2.0~2.5 |
不锈钢1Cr18Ni9Ti | 4.5~5.5 |
镍铬合金Cr20Ni80 | 3.5~4.0 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条