Conventional crack detection relies on vibration changes at integer multiples of running speed (1X, 2X, 3X). However, hot cracks — cracks that open and close due to differential thermal expansion — can mimic unbalance, misalignment, or even disappear during cool-down tests. This leads to false diagnostics, unplanned outages, and catastrophic failures.
| Feature | Specification | |---------|----------------| | Crack model | Breathing + Thermal stiffness decay | | Outputs | 1X/2X amplitude trend, orbit precession, FFT, Campbell diagram with crack | | Temperature range | Up to 1200°C (material dependent) | | Integration | Standalone or linked with Dyrobes unbalance & bearing analysis | dyrobes hot crack
If you are using Dyrobes to analyze a potential hot crack, look for these specific FFT (Fast Fourier Transform) and Bode plot signatures: Conventional crack detection relies on vibration changes at
If the Dyrobes model shows that the crack is opening due to a specific heat source (e.g., steam leakage or a hot gas path leak), install thermal shields or modify the seal clearance to reduce localized heating. and catastrophic failures.
Dyrobes provides advanced modeling capabilities to simulate and diagnose hot crack behavior. Key features used in hot crack analysis include: