Blade Repair
In-situ repair techniques
With the wind turbine service platform in the extended position, repairs can be carried out:-
Repair Techniques
Damage assessment by NDT
- Assess damage and find areas of good laminate to which repair can be connected
Repair Schedules
- Can be provided by blade manufacturer based on production repair practices
- Can be developed by specialist (composite supplier) to meet in-service requirements
Repair Levels
- Cosmetic repair: gel coat repair
- Temporary repair: limit spread of damage and degradation of composite material until full repair required
- Structural repair: replace damaged laminate and restore laminate for service
Repair Types
- Guided by composite supplier and blade manufacturer/designer
- Includes techniques for monolithic and cored laminates including wood-carbon blades', polyester and epoxy resin systems: Patch repair, Scarfed repair, Stepped repair, Leading and Trailing edge repairs
Repair Methods
- Guided by composite supplier and blade manufacturer/designer
- Includes: Gurit’s Renuvo Repair System, Pre-cured doubler, Vacuum bag
Repair assessment by NDT
- Key part of repair process to monitor repair quality and integrity of repair during service
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