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2014•Railway gazette internationalRequires access

Micro-ribbed wheel tread cuts derailment risk

Daisuke Yamamoto

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Abstract

A reduction in lateral forces when a train is negotiating a curve has been demonstrated in experiments by Japan's Railway Technical Research Institute (RTRI) featuring a microscopic rib located towards the outside of a wheel tread. Development by RTRI of such a wheel is underway. Details of tests of the wheelsets using test vehicles for trials on curved track are presented here. The results show that use of the micro-rib decreases the likelihood of derailment, as well as helps to cut vehicle maintenance costs.

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What this paper is about

A reduction in lateral forces when a train is negotiating a curve has been demonstrated in experiments by Japan's Railway Technical Research Institute (RTRI) featuring a microscopic rib located towards the outside of a wheel tread. Development by RTRI of such a wheel is underway. Details of tests of the wheelsets using test vehicles for trials on curved track are presented here. The results show that use of the micro-rib decreases the likelihood of derailment, as well as helps to cut vehicle maintenance costs.

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Available abstract

A reduction in lateral forces when a train is negotiating a curve has been demonstrated in experiments by Japan's Railway Technical Research Institute (RTRI) featuring a microscopic rib located towards the outside of a wheel tread. Development by RTRI of such a wheel is underway. Details of tests of the wheelsets using test vehicles for trials on curved track are presented here. The results show that use of the micro-rib decreases the likelihood of derailment, as well as helps to cut vehicle maintenance costs.

Key concepts: Tread, Derailment, Structural engineering, Engineering, Track (disk drive), Automotive engineering, Wheel running, Bogie

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