Sajjad Sattari, Mohammad Saadat, Sayed Hasan Mirtalaie, Mehdi Salehi, Ali Soleimani
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引用次数: 0
Abstract
Today, the wheel-rail dynamic forces (WRDFs) is one of the criteria for reliable evaluation of running stability, track loading, and vibration behaviour of railway systems. Over-limit dynamic forces, with the creation and growth of wheel and rail defects, are the cause of the derailment, accidents, and damage, and must be constantly monitored. In the present paper, after modelling and validating a passenger rail system, the effects of changes in train speed, track irregularities, and wheel flats on the WRDFs, derailment coefficient, and wheel-rail dynamic impact factor are evaluated. One of the results showed that by changing the train speed in different track irregularities, the WRDFs has changed significantly and the maximum force has increased with increasing speed. For example, in class 5 and class 6 of irregularity, by changing the train speed from 20 km/h to 100 km/h, the WRDFs is increased about 32% and 27%, respectively.
期刊介绍：
IJHVS provides an authoritative source of information and an international forum in the field of on/off road heavy vehicle systems, including buses. It is a highly professional and refereed journal which forms part of the proceedings of the International Association for Vehicle Design. IAVD is an independent, non-profit, learned society which provides a forum for professionals in both industry and academic institutions to meet, exchange ideas and disseminate knowledge in the field of automotive engineering, technology, and management.
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