振蕩閥 的英文怎麼說
中文拼音 [zhèndàngfá]
振蕩閥
英文
oscillator valve-
But sometimes self - excited oscillations and noise may appear in hydraulic flapper - nozzle servo - valve if its construction is not selected very correctly. if self - excited oscillations and noise appear in hydraulic servo - valve, the performance of hydraulic control systems may lose stability
因它具有非常快的響應速度，所以是目前應用最廣泛的伺服閥，但它也存在自激現象，容易產生自激噪聲和振蕩，嚴重影響伺服控制系統的穩定性。The anti - rolling tanks have three types including passive anti - rolling, controlled passively anti - rolling tank and active anti - rolling tank. the controlled passively anti - rolling tank has high performance, and it can adjust the water oscillation period through the valves in the upper of side tank in order to adapt the roll period. thus the controlled passively anti - rolling has favorable effect in the any states
其中，可控被動式減搖水艙是一種高效能的減搖水艙，它可以通過自動控制系統調節邊艙頂部的氣閥開關來調節水艙內水流振蕩周期，以適應經常變化的橫搖周期，保證在任何海浪作用下水艙都具有良好的減搖效果。First, the dynamic characteristics of pipe is simulated, the influence to waterhammer which is brought by the flow area of the valve, response time, the length of the pipe before and after the valve, the hydraulic pressure fluctuating in the trunk, and the high frequency pressure fluctuating in combustion chamber is analysed
首先對管道動態特性進行了模擬，分析了閥門過流面積、閥門作動時間、閥門前後管道的長度、貯箱壓力波動以及燃燒室壓力高頻振蕩等對管道動態特性的影響。In this thesis work, a 1 - d hydraulic transient model and a 2 - d compressible flow model with the large eddy simulation approach have been applied to analyse the hydrodynamic process of the unsteady separated flow. prototype observation data of gezhouba shiplock no. 3 has been used to verify the computational results. it has been found that two different types of flow regime - stably - varying and strongly - oscillating regimes - could occur in the radial gate tunnel
本文採取將一維非恆定流模型與二維可壓縮流一大渦模擬模型相結合的方法，分析了急變分離流的水動力學特性，並利用葛洲壩三號船閘的原型觀測資料驗證了數值模型的可靠性，發現閥門段存在平穩變化型和劇烈振蕩型兩種不同的流態，並詳細計算、分析了它們的流動特徵It will exert resistance and damping force to the torque motor armature, so that the dynamic performance, especially the stability, of flapper - nozzle servo - valve can be improved. the self - excited oscillations and noise can be removed. at the same time, as magnetic fluid has a higher magnetic permeability, the efficiency of torque motor magnetic circuit can be improved
由於磁流體具有的較大磁導率和較大的磁化強度，把磁流體添加到伺服閥力矩馬達的工作氣隙中，可提高伺服閥力矩馬達的磁迴路效率，增加伺服閥的阻尼，從而改善噴嘴擋板伺服閥的動態特性，抑制及消除其自激振蕩和噪聲。The oil system have accumulator to absorb hydraulic surge. adopting the inside high accurate electromagnetism servo valve with the negative motive feedback spring coil can avoid the control process surve, dynamic characteristic is excellent
採用內設動反饋作用的負反饋彈簧的高精度電磁伺服閥，可避免調節過程振蕩，動態特性優異。分享友人