Blade System Design Studies Volume I: Composite Technologies for Large Wind Turbine Blades

摘要: As part of the U.S. Department Energy's Wind Partnerships for Advanced Component Technologies (WindPACT) program, Global Energy Concepts LLC (GEC) is performing a study concerning innovations in materials, processes and structural configurations application to wind turbine blades multi-megawatt range. The project team this work includes experts all areas blade design, analysis, manufacture, testing. Constraints cost-effective scaling-up current commercial designs manufacturing methods are identified, including self-gravity loads, transportation, environmental considerations. A trade-off performed evaluate incremental changes cost, weight, stiffness wide range composite fabric types, processes. Fiberglass/carbon fiber hybrid identified as having promising combination fatigue resistance. Vacuum-assisted resin transfer molding, film infision, pre-impregnated materials benefits reduced volatile emissions, higher content, improved laminate quality relative baseline wet lay-up process. Alternative jointed facilitate transportation. Based on results date, recommendations made further evaluation testing under verify predicted material performance.