The wind turbine blade is a key component of wind turbine generator system, and
helps capture wind energy effectively. The way of RTM resin transfer molding is generally
used at home and abroad for blade manufacturing process. In order to ensure the quality of
product, computer simulation analysis and experimental verification should be conducted
before producing. Moldflow was used to simulate the process of wind turbine blade RTM.
Based on that, variation diagrams about filling time, temperature, buckling deformation,
pressure and so on are obtained. The results of analysis and comparison of with and without
cooling, as well as optimize the defects existed indicate that cavitations concentrate in roots
and edge of the blade, gas exhaust mold easily, there is no need to open up air vent additional;
In filling stage, mold clamping force gradually increase slowly, in packing stage, mold
clamping force sharply increase to reach peak, the mold clamping force disappears after
packing; filling time with cooling process is longer than that without cooling process. It
provides an important reference for wind turbine blade design and manufacture.
Keywords: wind turbine blade; RTM; simulation analysis
full paper (pdf, 1232 Kb)