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Passenger rail vehicle safety assessment methodology. Volume II, Detailed analyses and simulation results.
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Published Date:2000-04-01
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Language:English
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[PDF-3.85 MB]
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NTL Classification:NTL-SAFETY AND SECURITY-Accidents ; NTL-SAFETY AND SECURITY-Rail Safety ; NTL-SAFETY AND SECURITY-Speed Limits ; NTL-RAIL TRANSPORTATION-Rail Safety ;
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Abstract:This report presents detailed analytic tools and results on dynamic response which are used to develop the safe dynamic performance limits of commuter passenger vehicles. The methodology consists of determining the critical parameters and characteristic properties of both the vehicle and the track, establishing the failure modes, and then using a computer model to determine under what conditions the failure occurs. The computer tool predicts the dynamics of the vehicles at varying speeds. Safety limits and margins are based on when the predicted behavior approaches a derailment.
This report also present numerical examples of this methodology, derived from the software tool OMNISIM to predict the response of single and bi-level vehicles as they negotiate both tangent tracks and tracks with curves up to 20 deg.
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