In this article,the dynamic simulation software SIMPACK and the discrete rigidity damping elements are used to simulate the elastic deformation characteristics of elastic wheels in order to form a dynamic model of a modern tramcar composed of 3 cars;a comparative analysis is conducted on the anti-vibration performance of elastic wheels in the time and frequency domains under the track condition with a curve radius R400 m,and the impact of elastic wheels in different wheelset forms under different track conditions with curve radius of 50～400 m on the curve negotiation performance of intermediate trailers.The calculation result shows that elastic wheels can reduce the vertical vibration of carbody in the frequency ranges of 20～40 Hz,50～70 Hz and 180～300 Hz as well as the lateral vibration of carbody in the frequency range of 20～550 Hz.From the perspectives of wheelset lateral displacement and wheel load reduction rate,the curve radius R200 m approximately is the demarcation point between the curve guidance ability of the conventional wheelset with elastic wheels and that of the independent wheelset with elastic wheels.From the perspectives of wheel-rail lateral creepage,wheelset yawing angle,derailment coefficient and wheelset lateral force,the curve radius R100 m approximately is the demarcation point.
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维普
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