Blade inspection system and method
Abstract
Abstract THERE IS DISCLOSED A METHOD AND SYSTEM FOR INSPECTING A ROTOR BLADE TO DETECT THE PRESENCE OF A CRACK IN THE BLADE SPAR. A LINER, PREFERABLY MADE OF A MATERIAL OF LOW PERMEABILITY AND IN THE SHAPE OF A SLEEVE OR BAG IS PLACED INSIDE THE SPAR. THE SLEEVE IS SPACED FROM THE SPAR ALONG ITS ENTIRE LENGTH BY MEANS OF A BLEEDER CLOTH AND MEANS ARE PROVIDED FOR EVACUATING THE AREA OCCUPIED BY THE BLEEDER. A PRESSURE SENSITIVE DEVICE IS HERMETICALLY COUPLED TO THE EVACUATED AREA FOR TESTING AND MONITORING THE PRESSURE WITHIN THAT AREA. IF A CRACK DEVELOPS IN THE SPAR, AIR WILL ENTER THE EVACUATED AREA RESULTING IN A LOSS OF VACUUM WHICH WILL BE DETECTED BY THE PRESSURE SENSITIVE DEVICE.
Inventors
- 👤 Robert A Parr
Bibliographic Details
Claims Analysis
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