Detail Crankshaft
Monitoring of torsional vibration on the crankshaft and motor coupling is highly recommended, especially when using stepless unloaders or variable speed drives. When the machine was designed, a definite vibration behaviour was calculated and the shaft was sized correspondingly.
Feature
Monitoring of torsional vibration on the crankshaft and motor coupling is highly recommended, especially when using stepless unloaders or variable speed drives. When the machine was designed, a definite vibration behaviour was calculated and the shaft was sized correspondingly. However, the use of load controls such as stepless valve unloaders, generate operating conditions which may not have taken into consideration during the design phase.
As a consequence, resonances can be excited, which result in unplanned loads to the crankshaft and its drive connection. To enable damage-free operation despite changing flowrates, the continuous monitoring of torsional vibration is recommended with a special wireless sensor on the crankshaft to measure the vibration.
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