軸承座里的支撐軸承是特殊的滑動軸承，而不是傳統(tǒng)的滾動軸承， 這個一個高速的永磁同步電機，電機的額定轉(zhuǎn)速是10000rpm。

這里是一個聯(lián)軸器，這是一款Valenian雙跨的柔性轉(zhuǎn)子實驗臺，它有四個配重轉(zhuǎn)子盤，還有摩擦支架，非接觸式電渦流傳感器支架，還有一根做油膜渦動實驗的轉(zhuǎn)子軸及油膜渦動的軸承座，和一個滴注潤滑油的油杯。

還有另外一些配件如轉(zhuǎn)子盤卡套鎖緊的特殊扳手，內(nèi)六角扳手、配重螺栓、控制箱保險絲、聯(lián)軸器、緊固螺栓，這個是電機的控制箱。通過這根電纜與驅(qū)動電機相連接。

現(xiàn)在我啟動實驗臺給大家演示下，如何使用實驗臺。插上電源后，打開這邊的紅色開關(guān)，用手轉(zhuǎn)動調(diào)速器，輕輕旋轉(zhuǎn)調(diào)速器，此時電機就會開始運行。實驗臺運行還是很順滑和平穩(wěn)的，當(dāng)轉(zhuǎn)速逐漸上升的時候，達(dá)到實驗臺的臨界轉(zhuǎn)速之后，就會產(chǎn)生共振，我們明顯能夠感受到振動的加劇，過了臨界轉(zhuǎn)速后，振動和噪聲反而逐漸減小， 現(xiàn)在我們將轉(zhuǎn)速減小，讓它再過一次臨界轉(zhuǎn)速，隨著轉(zhuǎn)速的下降，振動和噪聲逐漸加劇，當(dāng)實驗臺運行在一階臨界轉(zhuǎn)速下，振動很小，噪聲也很小，運行平順。

Hello everyone, today I would like to introduce a flexible rotor test bench produced by VALENIAN company. Its model is FRT-1000.

The supporting bearing in the bearing seat is a special sliding bearing, not a traditional rolling bearing. This is a high-speed permanent magnet synchronous motor with a rated speed of 10000rpm.

This is a coupling, a double span flexible rotor test bench. It has four counterweight rotor disks, friction brackets, non-contact eddy current sensor brackets, a rotor shaft for conducting oil film vortex experiments, an oil film vortex bearing seat, and an oil cup for dripping lubricating oil.

There are also other accessories such as special wrenches for locking the rotor disc sleeve, hexagonal wrenches, counterweight bolts, control box fuses, couplings, and fastening bolts. This is the control box of the motor. Connect to the drive motor through this cable.

Now I will start the experimental platform and demonstrate how to use it. After plugging in the power, turn on the red switch on this side and manually rotate the speed controller. Gently rotate the speed controller, and the motor will start running. The operation of the experimental bench is still very smooth and stable. When the speed gradually increases and reaches the critical speed of the experimental bench, resonance will occur. We can clearly feel the intensification of vibration. After passing the critical speed, the vibration and noise gradually decrease. Now we will reduce the speed and let it pass the critical speed again. As the speed decreases, the vibration and noise gradually intensify. When the experimental bench runs at the first-order critical speed, the vibration is very small and the noise is also very small, and the operation is smooth