BISOPE series 37 Difference between shaft vibration and casing vibratio...

BISOPE series 37- Difference between shaft vibration and casing vibration(shaft vibration monitoring, bearing housing; casing vibration monitoring)

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If a dangerous state of a rotating machine is identified in advance or the machine suddenly breaks down, production is disrupted and huge asset losses occur. Therefore, in order to check the maintenance time while looking at the status (CBM), 'monitoring' must be performed and a 'monitoring system' must be installed or operated. As a monitoring method, the vibration of the facility is measured regularly in the field and sensing is performed by installing a continuous monitoring online system. But what is 'monitoring measurement technology'? The monitoring measurement technology is also divided into two parts as above, which are 'shaft vibration and casing vibration'. As for this distinction, even among those who specialize in vibration research, if you have not experienced the general field facility management method, you may not know the exact difference. This is very common in the current industrial field, but let's look at the direct differences in monitoring measurement technology that can never be confirmed theoretically.

 

Shaft & Casing, Housing vibration monitoring (shaft displacement vibration and bearing housing vibration)

 

Vibration in a rotating machine starts when the shaft rotates and excitation force (centrifugal force) is generated. Therefore, it is best to directly measure shaft vibration (shaft vibration measurement method), but this method has technical limitations. Therefore, a method of measuring where the shaft vibration is transmitted to the bearing housing or casing is often used, and this is commonly referred to as 'bearing housing vibration' or 'casing vibration'. This difference was sorted out.

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This data is very realistic and it is the result confirmed in the actual domestic industrial field, but it can be subjective and biased, so please refer to it.

 

All copyright  korea CBM  written by BISOPE , vs72@naver.com, 070-4388-0415,  www.kCBM.kr

 

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