閘門振動 的英文怎麼說
中文拼音 [zháménzhèndòng]
閘門振動
英文
gate vibration- 閘 : anchor gate
- 門 : Ⅰ名詞1 （房屋、車船等的出入口 ） entrance; exit; door; gate 2 （形狀或作用像門的東西） switch; va...
- 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
- 閘門 : 1 （水閘） sluice gate; gate; water gate2 （船閘） lock gate3 [機械工程] throttle valve; strobe; ...
- 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
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Due to too much short sustained time duration of oscillation for the blades and too wide distribution of oscillation frequency over the audio frequency range, a procedure of variable gate frequency measurement has been applied to the design of frequency measuring instrument with a micro - - controller unit ( mcu ) as its core. this procedure features a high precision and rapid speed
由於葉片振動持續時間很短，且振動頻率在音頻范圍之內分佈較廣，故在設計以單片機為核心的測頻儀時採用了變閘門測頻法，該方法具有精度高、速度快的優點。( 3 ) the vibration types and physical course of the tilting gate were elaborated, the causes of all kinds of the vibration were analyzed, and then the corresponding shock absorption measures were put forward
（ 2 ）分析闡述了翻板閘門振動類型及其物理過程研究，對各種振動的原因進行了分析，同時也提出了相應的減振措施。Unsteady separated flow, produced during the gate - opening period in the reverse radial gate tunnel of a high - lift shiplock, is characterized by negative pressure and high velocity as well as their intense fluctuations in space and time and could easily result in various harmful phenomena such as cavitation, gate vibration and sonic boom, which have been observed and confirmed by prototype and physical model tests
高水頭船閘輸水反弧閥門開啟過程中，后廊道內發生急變分離流，負壓、高速水流以及壓力與流速的劇烈時空脈動變化容易誘發空化空蝕、門振和聲震等有害現象已被原型觀測和物理模型試驗研究證實。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And some suggestions for gate vibration study are made
並對進一步做好水工閘門的振動研究工作提出了建議。According to the research development of flow - induced gate vibration in recent years, the paper presents a retrospect and a summary on the relationship between hydrodynamic loads and gate vibration characteristics, the hydrodynamic load characteristics and controlling means, the optimum design methods for gate anti - vibration, the dynamic stability analysis of the radial gate ' s arm, the methods to simulate the gate ' s hydro - elastic vibration, as well as the simulation analysis of flow - induced gate vibration
摘要從水動力荷載與閘門振動特性的關系、水動力荷載作用特點及其控制方法、閘門減振優化設計方法、弧形閘門支臂動力穩定性分析、閘門水彈性振動模擬方法以及閘門流激振動模擬分析等方面，對水工閘門流激振動的研究進行了回顧。分享友人