Manfred Weber
Metra Mess- und Frequenztechnik in Radebeul e.K.
PC Vibration Measurement System VibroMetra



Measurement and evaluation of vibration in wind energy turbines

There is a neutral technical guideline for evaluating vibrations in wind energy turbines – VDI 3834. Manufacturers, operators and insurers brought in their knowledge about vibrations on wind energy turbines.
There is a simple basic principle: Turbines with lower vibrations are better turbines. Too high vibrations stress the components of wind energy turbines, particularly the drive train, in a way that these components often do not reach the intended lifetime of 20 years.
The VDI guideline 3834 also offers guide values for evaluating vibrations on wind energy turbines. The software VM-WIND features automatic evaluation: The result is indicated in traffic light colors and numerically. A report is printed at the push of a button.

Identify causes

VM-WIND+ additionally displays the vibration signals in time and frequency domain and thus allows to identify causes of elevated values. However, it is an additional function and not required by the guideline VDI 3834.
For deeper analysis, further specialized software modules, e.g.
are available. If vibrations are caused by an unbalance, use the VM-BAL to balance the rotating component.