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- This paper deals with the stability and parametric resonances of a clamped-clamped pipe conveying pulsating fluid. 用數值方法給出了各種參數共振的響應曲線,分析了其存在區域以及響應頻率與脈動流頻率之間的關係。
- The brief theoretical analysis for the parametric resonances of the pipes conveying pulsating fluid have been performed first. 首先對於輸流管道的參數共振問題進行了簡要的理論研究。
- 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. 介紹了一種由直流電機驅動的開關轉閥式高頻脈動流體信號發生裝置的原理、結構特點,以及將它應用於非定常流量測量實驗系統中的實驗結果。
- Active vibration control of a clamped-clamped pipe conveying pulsating fluid is investigated in this paper ,adopting piezoelectric pieces as the actuator. 採用壓電片作為控制執行元件,對兩端固定輸流管道在脈動流作用下的參數共振進行了最優控制。
- 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. 對三種合成管道在幾個不同的平均流速和脈動流作用下做了多次重複實驗獲得了第一振型1/2次諧波參數共振相關實驗數據,實驗結果與理論結果在定性上一致。
- During the process of, NGH generation, ejector jet pump is working without control and fluid jet always kept upward at high speed. 水合物生成實驗始終保持噴射器處於自由抽吸狀態,流態為高速向上的噴射型。
- 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. 利用流體引緯時,織機的入緯率與蘇爾壽片梭織機相近,但這種引緯方法在織物幅寬上受到限制。
- Analyzing the structure and properties of grinding fluid jet, the velocity distribution field of round turbulent jet is discussed theoretically and simulated. 根據等壓力原理,建立了磨削液能夠衝破高速空氣帶而進入磨削區所必需的噴嘴出口速度模型。
- 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. 它是利用由小噴管噴出的混有磨料粒子的高速拋光液作用於工件表面,藉助於磨料粒子的高速碰撞剪切作用達成材料去除的目的。
- The flier is flying a new-type jet plane on trial. 飛行員正在駕駛一架新式噴氣機作試驗飛行。
- 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. 從鑽井泵經過鑽柱內部輸送到鑽頭噴嘴的流體是一種瞬態流動,存在著壓力行波,使從普通噴嘴射出的流體有一定程度的脈動。
- Design of the mobile equipment for fluid jet experiment 移動式流體噴射試驗裝置的研製
- The dark outline of a jet loomed through the mist. 噴射機的黑色輪廓在霧中隱隱顯現。
- Achieving Even Dyeing in Fluid Jet Dyeing with Reacive Dyes 活性染料噴射液流染色的勻染問題
- New Applications of Fluid Jet Technology in Oilfield Development 液體射流技術在油田開發中的新應用
- Research on material removal mechanism of fluid jet polishing 液體噴射拋光材料去除機理的研究
- Study of Parametric Resonance of a Nonlinear Plate-Shape Beam with Pulsating Fluid 振蕩流作用下的非線性板狀梁結構參數共振研究
- Hey, look, that jet airliner is hopping off. 嗨,看啊,那架噴氣式班機起飛了。
- Stability and Parametric Resonances of a Pinned-Pinned Pipe Conveying Pulsating Fluid 兩端鉸支輸流管道在脈動內流作用下的穩定性和參數共振
- I felt completely disorientated with the jet lag. 我乘長途飛機後因生理節奏失調而感到昏昏沉沉的。