Dynamic Wheel/Rail Benchmark Single Wheelset without Friction
The FRA/DTT Cooperation Team is calling for simulations to help analyze differences between several codes using either elastic normal calculations or constraint equations.
The Dynamic Wheel/Rail Benchmark (from now on referred to as LD Benchmark) is proposed to assess the ability of various rail vehicle dynamics software to predict fundamental wheelset behavior. This very simple Benchmark (one single wheelset without friction, nor material damping between wheel and rail) is intended to analyze normal contact force calculations and modeling of flanging with impacts. Although one would believe it extremely elementary, it is expected to find different results due to differences in coding assumptions. (c.f. Full description (PDF, 56KB))
This Benchmark involves several exercises with a wheelset and rails having the actual wheel and rail profiles (awprof and arprof), and a wheelset and rails having the simplified wheel and rail profiles (swprof and srprof).
Links
Research Documents:
Research Participation:
Please visit the LD Benchmark Participants page for information on participants as well as participant data.
Research Results:
Results data, sorted by excerise and by participant, can be found at the LD Benchmark Results page.
Other Research
MMU Rail Technology Unit: Wheel Rail Track Benchmark
A second benchmark involving more complex models is being prepared at Manchester Metropolitan University (MMU). This benchmark, organized by MMU's Rail Technology Unit (RTU) examines wheel-rail forces and contact parameters that develop from contact models used in dynamic simulations of the wheel-rail interface and railway vehicle-track interaction. Information can be found on the RTU website as well as contact details.
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