DyRoBeS uses eigenvalue analysis to calculate damped whirl speeds, showing how a crack affects the stability of the system across a range of operational speeds.
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). dyrobes hot crack
Rapid heating or cooling (e.g., during startup or shutdown) creates internal stresses. DyRoBeS uses eigenvalue analysis to calculate damped whirl
In Dyrobes terminology, this phenomenon is frequently analyzed using the or Thermal Bow feature to predict vibration instability. While "hot crack" is not a standard module name, it likely refers to papers discussing the thermal analysis of cracked rotors or the differential heating (hot spot) that leads to shaft cracking. Because the rotor is spinning, the heating is not uniform