Fire Science
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- Liquid cargo (1)
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- Sloshing affects (1)
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- 3.2 Gefahrguttanks und Unfallmechanik (3) (entfernen)
Eingeladener Vortrag
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Liquid cargo has a significant impact on the interface wheel-track interaction. The sloshing affects the track-railcar's dynamic behavior. The effect is detectable at the track level and at the vehicle. Its characterization requires the combination of different techniques:
Empirical Mode Decomposition (EMD)
Time-Frequency Maps
Sloshing occurred when significant perturbations happened in the railcar:
The railcar entered a curve
Reduction in its travel speed
A railcar with a tank is a clear example of a multibody dynamic system with a nonlinear behavior.
100 mm of PUR-foam give satisfying results in terms of
thermal properties. The non-pressure testing methods gives reliable and repeatable results. Bending modulus of laminates does not change until the first damage occurs. After that, the bending modulus decreases by 50 % but max. stress is still higher than at room temperature.
Evaluate tank car PRV behavior under realistic fire conditions Subject 1/3 scale tank with full size PRV to engulfing pool fire Initial tests with water lading. Current tests with flammable lading (Ethanol). Document PRV performance with respect to opening pressure, reclosing, and evacuating the tank