Dyrobes Hot Crack ((full)) File

Consider a 50 MW gas turbine generator that experienced high vibration at the #2 bearing only after 4 hours of operation. Cold balancing was perfect. Engineers imported the rotor geometry into Dyrobes and ran a .

Model the nonlinear behavior of squeeze film dampers or fluid film bearings to see how thermal imbalances evolve over time. dyrobes hot crack

This is the signature of the Dyrobes Hot Crack. When a crack opens, friction between the crack faces generates localized heat. Because the rotor is spinning, the heating is not uniform. The crack location becomes a "hot spot." The thermal expansion at that hot spot pushes the rotor into a bow. As the bow increases, rubs occur at seals, generating more heat, creating a positive feedback loop (the Morton Effect). Consider a 50 MW gas turbine generator that