An experimental study of vibration reduction of a ballasted ladder track. (October 2017)

• Record Type: Journal Article
• Authors: Ma, Meng; Liu, Weining; Li, Yulu; Liu, Weifeng
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 231:Number 9(2017)
• Page Start: 1035
• Page End: 1047
• Publication Date: 2017-10
• Subjects: Railway vibration -- ladder sleeper -- ballasted track -- vibration mitigation -- vibration measurement; Railroads -- Periodicals; Personal rapid transit -- Periodicals; 625.1
• DOI: 10.1177/0954409716642488
• Languages: English
• ISSNs: 0954-4097

Abstract

The ballasted ladder track is a new type of longitudinal track. In this paper, to investigate its vibration reduction effect, both a laboratory test and in situ experiment were conducted. As the vibration sources, a newly designed drop weight impulse setup was employed in the laboratory test, and moving metro trains were employed in the in situ measurement. The vibration reduction effects of the ballasted track with ladder sleepers and regular concrete sleepers were compared. The results show that the ballasted ladder track can effectively decrease the peak value in the time domain and has the potential effect to control the environmental vibration in low frequencies. The shape of the sleeper can induce changes in the vibration field of the ballast.