[Skip to content]

Suspended test demonstrates that the whole system is working

Suspended test demonstrates that the whole system is working

21 March 2017

A fully suspended test has been performed in TWI’s optical lab. During the test, a sucking robot which carried the shearography was firmly attached to a wind turbine blade sample which stood vertically on an optical table. Good shearography fringe patterns were acquired. During the test, artificial disturbances were introduced to the blade to represent vibrations on a wind turbine blade in a wind tower. Although fringes disappeared at the beginning of the disturbances where the structure was in an unstable condition, good fringe patterns reappeared when the structure returned to balancing positions. This result confirmed our theoretical analysis which showed that the system will work in real situations on a wind tower. A further test on a 4m long wind turbine blade sample in an out-door environment is planned to be carried out in the following weeks.

Suspended test demonstrates that the whole system is working
Suspended test demonstrates that the whole system is working