FAN FEA

We ran a finite element analysis (FEA) on the heavy-duty fan. We gave the fan a centrifugal load of 3600 RPM and constrained the bore.  As expected, the highest stresses are found along the blade edges where the blade/hub fillet meets the blade. As you can see in the image below, the lowest safety factor  remained around 10.0.

Generator Fans

TRI Transmission and Bearing Corp. has just completed two fans for either end of a large air-cooled generator.

The fans are milled and then hand polished from a single steel forging. There are no welds to fail.  This method of production takes some time, but the payoff is a fan that will stand the test of time.