脉动压力,fluctuating pressure
1)fluctuating pressure脉动压力
1.Model experiment study on fluctuating pressures in variable elevation intake for a certain hydroelectric station;某水电站分层取水进水口脉动压力模型试验
2.Models for simulating the propagation of fluctuating pressure in gaps of stilling basin slab;脉动压力在消力池底板缝隙传播的瞬变流模型和渗流模型统一性探讨
3.Wavelet analysis on flow fluctuating pressure acting on plunge pool slope;水流脉动压力的小波分析研究
英文短句/例句

1.Response of Cavity Pressure During Pulsatile Pressure Induced Packing脉动压力诱导保压过程中的模腔压力响应
2.Numerical Simulation of Reynolds Stresses Influence on Mean and Fluctuation Pressure雷诺应力对平均和脉动压力影响的数值模拟
3.Experimental research on fluctuating pressure characteristics of bottom plate of stilling basin and training wall消力池底板及导墙脉动压力特性试验研究
4.Pulse Pressure DAQ Module Designed for Turbine Aeroengine航空涡轮发动机脉动压力参数采集模块的设计
5.Study on Attenuation of Vibration Phenomenon in Pulsating-Pressure Induced Injection Molding动态注射成型中脉动压力衰减程度的研究
6.The Wavelet Analysis on the Relation of the Wall Pressure Fluctuating and Velocity in the Turbulent Boundary Layer湍流边界层脉动速度及脉动压力相关联的子波分析
7.Numerical simulation of propeller-induced vibrating pressure on stern螺旋桨诱导的船尾脉动压力的数值模拟
8.carotid sinus baroreceptor颈动脉窦压力感受器
9.It lowers blood pressure, which helps decrease the stress on the arteries.它能降低血压,从而减少动脉压力。
10.Pulse: Pressure wave in the arteries from contraction of the heart.脉搏:心脏收缩造成的动脉中的压力波动。
11.Relationship between Arterial Baroreflex Function and Atherosclerosis;动脉压力感受性反射功能与动脉粥样硬化
12.Sildenafil Prevents and Reverses the Development of Pulmonary Hypertension in Pneumonectomy Combining to Monocrotaline Treated Rats;西地那非对肺动脉高压大鼠肺动脉压力影响的实验研究
13.aortic baroreflex主动脉弓压力感受器反射
14.Pressure and flow pulses may be used to keep the tubes unobstructed.可用压力和流动脉冲使管子畅通。
15.New Index of Pulmonary Artery Pressure Estimated by Doppler Echocardiogaphy多普勒超声估价肺动脉压力的新指标
16.Experimental Study on Active Control of Pressure Pulse in Liquid-filled Pipe;充液管道压力脉动有源控制实验研究
17.Relations between the Vortex and Pressure Fluctuation in Draft Tube of the Hydraulic Turbine;水轮机尾水管涡带与压力脉动的关系
18.The Influence of Pulse Jet on Performances of Pressure Wave Refrigerator;脉动射流对压力波制冷机性能的影响
相关短句/例句

fluctuation pressure脉动压力
1.The main objective of this research is to avoid the cavitation scale effect, the term of fluctuation pressure is analyzed in details.为了消除空化试验的比尺效应,具体分析脉动压力对空化的影响,从泡动力学方程得出水中气核的发育时间和临界压力,得出气核的生长时间小于水流的负脉动周期;另由于水流脉动对气核的振荡作用,使气核提前膨胀,促使空化提前发生,计算空化数时需计入脉动压力项。
2.The resultant of the fluctuation pressure on the hydraulic structures is discussed.讨论了水工建筑物上脉动压力的合成问题。
3)pressure fluctuation脉动压力
1.The location of boundary-layer transition detected by pressure fluctuation measurements;应用脉动压力测试技术探测边界层转捩
2.Research on prediction method of pressure fluctuation induced by cavitating propeller on hulls of arbitrary shape;空泡螺旋桨在任意形状船体上诱导的脉动压力数值预报方法研究
3.The system based on VXIbus for measuringand analyzing pressure fluctuations inhigh speed wind tunnels;基于VXI总线的高速风洞脉动压力测试与分析系统
4)pulsating pressure脉动压力
1.Study on mechanism of pulsating pressure propagation disintegration in joints of bottom slab;脉动压力在板块缝隙中传播衰变机理研究
2.It was proposed that pulsating pressure leads to crack.提出了脉动压力导致破坏的观点,解释了油冷器破坏位置的倾向性,指出在油压爆破实验中盲板法兰相对油道转角处翅片的破坏几率高于进油口相对油道转角处翅片的破坏几率为正常现象,否则可能是产品质量问题。
3.Piezoresistive pressure transducers may be used to measure pulsating pressure.测量脉动压力用压阻式压力传感器,通过有限元应力分析求得灵敏度高、线性又好的双岛硅膜片结构;采用双面对准光刻工艺,各向异性腐蚀微机械加工制硅膜片等新技术。
5)pressure fluctuations脉动压力
1.Numerical and experimental research on pressure fluctuations induced by propeller cavitation;螺旋桨空泡及其诱导的脉动压力的数值和试验研究
2.Study on pressure fluctuations in draft tube and its diffuser;尾水管脉动压力及扩散方式的研究
3.Several methods for predicting pressure fluctuations;预报船体脉动压力的几种数值方法
6)pressure fluctuation压力脉动
1.Characteristics of pressure fluctuation in standpipe at negative pressure gradient in circulating fluidized bed;气固循环流化床负压差下料立管的压力脉动特性
2.Wavelets analysis of pressure fluctuation in agitated fluidized bed;气固搅拌流化床压力脉动的小波分析
3.Characteristics of pressure fluctuation in submerged circulative impinging stream reactor;浸没循环撞击流反应器的压力脉动特性
延伸阅读

脉动压力脉动压力fluctuating pressure maidong yali脉动压力(fluetuating pressure)由f高速水流的强烈紊动,在建筑物表面产生的围绕时均压强上下波动的随机动水压力。作用于泄水或放水建筑物表面上的脉动压力,除可能引起空蚀外,对有些建筑物,如溢流式水电站厂房的溢流顶板、护坦、闸墩等,还可能引起振动。当脉动压力的振动频率与建筑物自振频率一致或接近时,可能产生共振,从而导致建筑物破坏。 对于高大的水工建筑物在高速水流作用下的脉动压力,最好通过水工模型试验进行研究。试验中测出的点脉动压力在时均压强线上下呈不规则的波动变化,可用谱分析方法寻求波动的随机特性(振动频率、脉动压力的最大振幅值等)。由于脉动压力试验的模型相似律迄今还未成熟,压强的测量技术也还不够完善,因此,试验结果也并不完全准确。当无试验资料时,只能用简单方法进行粗略估算。例如同一时刻作用在护坦L的点脉动压力强度和方向很不相同,虽然点脉动压力值可能很大,但平均到护坦板上的面压力值并不大,故可采用下式估算:几一士。二理一:、吨/米2, ‘g式中砰为收缩断面的平均流速(米/秒);g为重力加速度(米/秒“);了为水的容重(吨/米“);a,为脉动压力系数。am介于0.05一0.1之间,可根据水流的缓急程度适当选用。