您要查找的是不是:
- This paper deals with the stability and parametric resonances of a clamped-clamped pipe conveying pulsating fluid. 用数值方法给出了各种参数共振的响应曲线,分析了其存在区域以及响应频率与脉动流频率之间的关系。
- The brief theoretical analysis for the parametric resonances of the pipes conveying pulsating fluid have been performed first. 首先对于输流管道的参数共振问题进行了简要的理论研究。
- Principle and structure features of an on-off rotary valve type high frequency pulsating fluid signal generating device driven by D. C. motor are described. 介绍了一种由直流电机驱动的开关转阀式高频脉动流体信号发生装置的原理、结构特点,以及将它应用于非定常流量测量实验系统中的实验结果。
- Active vibration control of a clamped-clamped pipe conveying pulsating fluid is investigated in this paper ,adopting piezoelectric pieces as the actuator. 采用压电片作为控制执行元件,对两端固定输流管道在脉动流作用下的参数共振进行了最优控制。
- The parametric resonances of first mode of order 1/2 of clamped-clamped pipes conveying pulsating fluid are investigated under some different mean flow velocities. 对三种合成管道在几个不同的平均流速和脉动流作用下做了多次重复实验获得了第一振型1/2次谐波参数共振相关实验数据,实验结果与理论结果在定性上一致。
- During the process of, NGH generation, ejector jet pump is working without control and fluid jet always kept upward at high speed. 水合物生成实验始终保持喷射器处于自由抽吸状态,流态为高速向上的喷射型。
- The technique of inserting weft in a fluid jet achieves weft-insertion rated comparable with those achieved by the Sulzer weaving machine, but there are width limitations. 利用流体引纬时,织机的入纬率与苏尔寿片梭织机相近,但这种引纬方法在织物幅宽上受到限制。
- Analyzing the structure and properties of grinding fluid jet, the velocity distribution field of round turbulent jet is discussed theoretically and simulated. 根据等压力原理,建立了磨削液能够冲破高速空气带而进入磨削区所必需的喷嘴出口速度模型。
- The fluid jet polishing system is guide a pre-mixed slurry to the surface with a high speed by the use of a nozzle, and the material is removed by the collision and shear action between abrasive grain and the workpiece. 它是利用由小喷管喷出的混有磨料粒子的高速抛光液作用于工件表面,借助于磨料粒子的高速碰撞剪切作用达成材料去除的目的。
- The flier is flying a new-type jet plane on trial. 飞行员正在驾驶一架新式喷气机作试验飞行。
- Fluid is conveied to bit nozzel through drill string from pump is a transient state flowing with pressure wave, which makes the fluid jetted out from nozzel has certain pulsation. 从钻井泵经过钻柱内部输送到钻头喷嘴的流体是一种瞬态流动,存在着压力行波,使从普通喷嘴射出的流体有一定程度的脉动。
- Design of the mobile equipment for fluid jet experiment 移动式流体喷射试验装置的研制
- The dark outline of a jet loomed through the mist. 喷射机的黑色轮廓在雾中隐隐显现。
- Achieving Even Dyeing in Fluid Jet Dyeing with Reacive Dyes 活性染料喷射液流染色的匀染问题
- New Applications of Fluid Jet Technology in Oilfield Development 液体射流技术在油田开发中的新应用
- Research on material removal mechanism of fluid jet polishing 液体喷射抛光材料去除机理的研究
- Study of Parametric Resonance of a Nonlinear Plate-Shape Beam with Pulsating Fluid 振荡流作用下的非线性板状梁结构参数共振研究
- Hey, look, that jet airliner is hopping off. 嗨,看啊,那架喷气式班机起飞了。
- Stability and Parametric Resonances of a Pinned-Pinned Pipe Conveying Pulsating Fluid 两端铰支输流管道在脉动内流作用下的稳定性和参数共振
- I felt completely disorientated with the jet lag. 我乘长途飞机後因生理节奏失调而感到昏昏沉沉的。