The International Journal of Railway Research

fa Performance Comparison of two Freight Bogies when Passing Through Different Turnouts Railway track and structures Railway track and structures پژوهشي Research The aim of this research is to study and analyze the dynamics of freight wagons and the safety of the bogie, when passing through railroad turnouts with different rail profiles and radius of curvature. Many type of turnouts are used in Iranian railway and they affect the dynamic performance of bogies. Dynamic simulations by using MBS engineering software UM is used. As the results prove, the geometric features of the turnout, such as its radius and rail profile, have great influences on the dynamic behavior of the rail vehicles. Turnout, Derailment coefficient, Freight bogie, Dynamic forces, Turnout geometrical specifications 133 141 http://ijrare.iust.ac.ir/browse.php?a_code=A-10-69-4&slc_lang=fa&sid=1 Shahin Yousefi shahinyousefi@iust.ac.ir 180031947532846002073 180031947532846002073 No School of Railway Engineering, Iran University of Science and Technology, Tehran, Iran Mohammad Mahdi Naseri Taheri Naseri71@alumni.iust.ac.ir 180031947532846002074 180031947532846002074 No School of Railway Eng., Iran University of Science and Technology Tehran, Iran Majid Sharavi m_shahravi@iust.ac.ir 180031947532846002075 180031947532846002075 Yes School of Railway Eng., Iran University of Science and Technology Tehran, Iran