大家好，今天給大家介紹這一款柔性轉(zhuǎn)子實(shí)驗(yàn)臺(tái)，它的型號(hào)是FRT-1000。這款實(shí)驗(yàn)臺(tái)有三種規(guī)格，這是單跨轉(zhuǎn)子，這雙跨轉(zhuǎn)子，這是三跨轉(zhuǎn)子，根據(jù)轉(zhuǎn)軸的數(shù)量，及安裝的滑動(dòng)軸承的數(shù)量來區(qū)別的。

它的主要功能是可以開展柔性轉(zhuǎn)子的動(dòng)平衡模擬、啟停機(jī)測試、軸心軌跡測量、軸心位置測量、波德圖、瀑布圖、還可以測量轉(zhuǎn)子的臨界轉(zhuǎn)速、共振測試。

這個(gè)是和它配合使用的一個(gè)控制器，控制器可以顯示轉(zhuǎn)速，正反轉(zhuǎn)切換、暫停運(yùn)行切換、轉(zhuǎn)速調(diào)節(jié)、電機(jī)運(yùn)行的轉(zhuǎn)速范圍是0-10000rpm，還有一些其他的配件，如油膜渦動(dòng)的軸承座，可以開展油膜渦動(dòng)及油膜震蕩試驗(yàn)，這是油膜渦動(dòng)的配套的柔性軸，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(xiǎn)絲、聯(lián)軸器、緊固螺栓所組成。

現(xiàn)在我們啟動(dòng)實(shí)驗(yàn)臺(tái)給大家演示下，這個(gè)實(shí)驗(yàn)臺(tái)可以配置的傳感器類型有壓電式ICP加速度振動(dòng)傳感器，非接觸式電渦流位移傳感器、這常用的種類的傳感器。

把電纜插頭插到插座上后，打開紅色的電源開關(guān)，這時(shí)候控制器上的儀表就會(huì)有顯示，就會(huì)顯示當(dāng)前的轉(zhuǎn)速，首先按下運(yùn)行按鈕，手動(dòng)旋轉(zhuǎn)轉(zhuǎn)速調(diào)節(jié)旋鈕，電機(jī)此時(shí)就會(huì)啟動(dòng)，此時(shí)電機(jī)轉(zhuǎn)速發(fā)聵在轉(zhuǎn)速表上。我們逐漸的調(diào)高轉(zhuǎn)速，三跨轉(zhuǎn)子的臨界轉(zhuǎn)速在5000pm附近，隨著轉(zhuǎn)速的上升，我們明顯能夠感受到振動(dòng)的加劇，過了臨界轉(zhuǎn)速后，振動(dòng)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(dòng)和噪聲逐漸加劇，當(dāng)實(shí)驗(yàn)臺(tái)運(yùn)行在一階臨界轉(zhuǎn)速下，振動(dòng)很小，噪聲也很小，運(yùn)行平順。

如果我們把試驗(yàn)運(yùn)行在目標(biāo)轉(zhuǎn)速后，然后按下停止按鈕，此時(shí)實(shí)驗(yàn)臺(tái)會(huì)自動(dòng)停機(jī)，然后再按下，它就會(huì)運(yùn)行到目標(biāo)轉(zhuǎn)速、就可以開展實(shí)驗(yàn)臺(tái)啟停機(jī)實(shí)驗(yàn)。

Hello everyone, today I will introduce this flexible rotor experimental platform, which is model FRT-1000. This experimental bench has three specifications: single span rotor, double span rotor, and triple span rotor, which are distinguished based on the number of shafts and the number of sliding bearings installed.

Its main function is to conduct dynamic balance simulation of flexible rotors, start stop testing, axis trajectory measurement, axis position measurement, Bode plot, waterfall plot, as well as critical speed and resonance testing of rotors.

This is a controller used in conjunction with it. The controller can display the speed, switch between forward and reverse rotation, pause operation, adjust the speed, and the speed range of the motor is 0-10000rpm. There are also some other accessories, such as the bearing seat for oil film vortex, which can conduct oil film vortex and oil film oscillation tests. This is a flexible shaft that matches the oil film vortex, a special wrench for locking the rotor disc sleeve, an Allen wrench, a counterweight bolt, a control box fuse, a coupling, and fastening bolts.

Now let's start the experimental platform to demonstrate to everyone. The types of sensors that can be configured on this platform include piezoelectric ICP acceleration vibration sensors, non-contact eddy current displacement sensors, and commonly used types of sensors.

After inserting the cable plug into the socket, turn on the red power switch. At this time, the instrument on the controller will display the current speed. First, press the run button and manually rotate the speed adjustment knob. The motor will start at this time, and the motor speed will sound on the tachometer. We gradually increased the speed, and the critical speed of the three span rotor was around 5000pm. As the speed increased, we could clearly feel the intensification of vibration. After passing the critical speed, the vibration and noise gradually decreased. Now we 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 critical speed, the vibration and noise are very small, and the operation is smooth.

If we run the experiment at the target speed and then press the stop button, the test bench will automatically stop. Then press it again, it will run to the target speed, and the test bench start stop experiment can be carried out.