Fig nbsp xA Fault tree

Principal events in DIDS blade system.Severe blade failureg013High wind speed/turbulencee015Blade failureg014Blade angle asymmetrye016Pitch system failureg015Abnormal vibration Ae017Structural failure of bladesg016Hydraulic motor failuree018Hydraulic system failureg017Leakages in hydraulic systeme019Wrong blade angleg018Over pressure in hydraulic systeme020Hydraulic system faultg019Corrosion in hydraulic systeme021Meteorological unitg020Vane damagee022Structural fault of bladesg021Anemometer damagee023Leading and trailing edges damageg022Abnormal vibration Be024Shell damageg023Root cracks in the structure of bladese025Tip damageg024Cracks in edges of bladese026Rotor system failureg025Erosion in edges of bladese027Rotor system faultg026Delamination in leading edges of bladese028Rotor bearings faultg027Delamination in trailing edges of bladese029Rotor hub faultg028Debonding in edges of bladese030Wear in bearings of the rotorg029Delamination in shelle031Imbalance of blade systemg030Crack with structural damage (shell)e032Crack on the beam-shell jointe033Open tipe034Lightning strike on tipe035Abnormal vibration Ce036Cracks in bearings of rotore037Corrosion of pins in bearings of rotore038Abrasive wear in bearings of rotore039Pitting in bearings of rotore040Deformation of face & rolling element in bearings of rotore041Lubrication fault in bearings of rotore042Clearance loosening at root (hub)e043Cracks in the hube044Surface roughness in the hube045Mass imbalance in the hube046Fault in pitch adjustmente047Full-size tableTable optionsView in workspaceDownload as CSV