helical gear box (pinion teeth 50 running rpm 5600,
bull gear 77 running rpm 3600) has axial vibration as high as 0.6
in/sec, which is extremely alarming. The spectrum analysis shows a
dominant peak at 18X, which isn't relevant to GMF.
我的朋友试了以上方法, 他的回复如下,希望哪位专家再指点一下,谢谢!!
GMF (gear meshing frequency)of the gear box is 47X, however the peak is
appearing at 18X which is confusing.
The gear box coupling alignment has been verified, no 1X or 2X peaks
were obtained in the frequency.