The characteristics of several high-precision mirror cores are observed. The following is a small series of Longfeng Machinery for everyone to introduce in detail, I hope to help everyone!

The method for diagnosing transverse cracks in high-precision mirror cores is to monitor the amplitude variation of high-precision mirror cores during start-stop. How to diagnose transverse crack failure of high precision mirror core? How to eliminate it?

The main features are as follows:

1. Under the joint excitation of unbalanced force and gravity, 1 / N critical speed resonance occurs (N = 1, 2, 3, ...) when the rotor speed is raised to the third critical speed. Sensitive to crack response. That is, when the rotor speed is raised to the third critical speed, the amplitude and phase of the second harmonic component and the second harmonic component are significantly changed.

2. When the rotor accelerates through the third critical speed, the amplitude decreases before the formant and the amplitude changes accordingly.

3. The vibration response of the cracked rotor in the vertical direction is greater than the vibrational response in the horizontal direction, especially in the second harmonic component and the fourth harmonic component.

4. The change of crack depth has little effect on the response of the rotor in the horizontal direction, but as the crack depth increases, the response of the rotor in the vertical direction increases, especially the second harmonic component.

The above is the relevant information introduced by the small series of high-precision mirror shaft core manufacturers. If you need to know more, please contact us!