A study on comparisons of composite and conventional steel bogie frames

• Published in: Journal of mechanical science and technology Vol. 30; no. 12; pp. 5439 - 5446
• Main Authors: Kim, Jung-Seok, Yoon, Hyuk-Jin, Lee, Woo-Geun
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Mechanical Engineers 01.12.2016; Springer Nature B.V; 대한기계학회
• Subjects: Configurations; Control; Derailments; Dynamic characteristics; Dynamical Systems; Engineering; Industrial and Production Engineering; Mechanical Engineering; Passenger comfort; Rubber; Simulation; Steel frames; Steel structures; Steels; Trends; Undercarriage; Undercarriages; Vibration; 기계공학; Bogie; Suspension; Dynamic; Composite; Derailment
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-016-1112-7

In this study, the dynamic characteristics of three different bogie configurations, a conventional Steel bogie (SB), a composite bogie without primary suspension (CB1), and a composite bogie with primary suspensions of conical rubber type (CB2), were compared. The CB1 shows the highest critical speed while the CB2 shows the lowest. The SB configuration showed the highest ride index value while the CB2 showed the lowest. Both of the composite configurations showed better ride comfort index than that of the steel configuration. The trend of the derailment index was opposite to that of the critical speed. In the derailment index measuring test, the CB1 bogie configuration had a 12.3 % higher derailment index than that of the SB. These results show good agreement in overall trends with the simulation results.