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EVALUATION OF TIME-DURATION DEPENDENT WHEEL LOAD CRITERIA FOR WHEELCLIMB DERAILMENT

L. M. Sweet, A. M. Karmel

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Abstract

This paper shows that the JNR and other time-duration dependent criteria based on wheel load measurements alone are unsuccessful in predicting derailment safety. For wheelclimb processes involving negligible lateral velocities, the derailment limit can be estimated from quasisteady analysis of wheel/rail forces. The evaluation of criteria is based on experiments with a single wheelset and a nonlinear theory for dynamic wheelclimb.

About this research paper

What this paper is about

This paper shows that the JNR and other time-duration dependent criteria based on wheel load measurements alone are unsuccessful in predicting derailment safety. For wheelclimb processes involving negligible lateral velocities, the derailment limit can be estimated from quasisteady analysis of wheel/rail forces. The evaluation of criteria is based on experiments with a single wheelset and a nonlinear theory for dynamic wheelclimb.

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Available abstract

This paper shows that the JNR and other time-duration dependent criteria based on wheel load measurements alone are unsuccessful in predicting derailment safety. For wheelclimb processes involving negligible lateral velocities, the derailment limit can be estimated from quasisteady analysis of wheel/rail forces. The evaluation of criteria is based on experiments with a single wheelset and a nonlinear theory for dynamic wheelclimb.

Key concepts: Derailment, Duration (music), Structural engineering, Engineering, Nonlinear system, Limit (mathematics), Automotive engineering, Mathematics

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EVALUATION OF TIME-DURATION DEPENDENT WHEEL LOAD CRITERIA FOR WHEELCLIMB DERAILMENT — Research Paper | ScholarLens