critical damper 中文意思是什麼
critical damper
解釋
臨界阻尼器-
Fist ly, use mass equivalent method to predigest the original rotor system. secondly, use transfer matrix arithmetic to have finished the relative program to calculate the critical speed of flexible multi - tray rotor bearing system by matlab language. thirdly. finish program the unbalance response using riccati - transfer matrix arithmetic and finity buck arithmetic. fourthly, answer to the high vibration of uncontroled system when cross the critical speed, come out to adopt changing clearance damper bearing to control the viberation
本文對多柔盤轉子-支承系統的振動現象做了以下初步探索：用質量離散化方法把原轉子系統簡化；採用matlab語言編制了對傳遞矩陣法計算多柔盤轉子-支承系統的臨界轉速；用matlab語言對riccati傳遞矩陣法和有限元法編制了程序計算系統的不平衡響應；並針對其過臨界轉速時振動較大的現象，提出採用變間隙控制油膜剛度和阻尼，從而使原系統的在特定轉速（臨界轉速）的一段范圍內不平衡響應減小；並從被動控制與主動控制兩方面進行數值模擬，取的了較好的控制效果。 -
The dynamic character of the rotor system is the same as that without magnetic field when the magnetic field frequency is over a critical frequency, and the sinusoidal magnetic field cannot control the dynamic performance of the disk type mr fluid damper
當磁場的頻率高於一個臨界頻率后，轉子系統的動力特性與無磁場時的動力特性相同，正弦磁場不能夠控制磁流變流體阻尼器的動力特性。 -
To reduce the excessive vibration of a high - speed rotor system at the critical speed, a friction damper with a flexible support structure is introduced
摘要為了抑制高速滾動軸承轉子系統在通過臨界轉速時的過大振動，本文採用了摩擦阻尼彈性支承結構。 -
Using this kind of bearing, we finish the spin test at 67000rpm. also, we add the controlled passive magnetic damper ( cpmd ) to the rotor tester, which is used to reduce the vibration the main achievements are as follows : 1. we analyzed dynamic characteristic of nr15 rotor with long shaft, and get its critical - speed and response to unbalanced mass
本課題的研究，我們做了以下工作： 1對nr15帶柄轉子的動力學特性做了分析，得到了不同剛度支承下，轉子各階臨界轉速及相應振幅參數；並在原有超速試驗臺基礎上，通過設計上、下彈性阻尼支承結構，實現了nr15帶柄轉子67000rpm的超速試驗。
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