| Download | - View final version: Evaluation of ride quality and rail surface roughness from vibration analysis of in-service passenger rail cars (PDF, 1.7 MiB)
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| Author | Search for: Abdulrazagh, Parisa Haji; Search for: Hendry, Michael T.; Search for: Roghani, Alireza1; Search for: Toma, Elton1 |
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| Editor | Search for: Abdulrazagh, Parisa Haji; Search for: Hendry, Michael T.; Search for: Pulisci, Renato Macciotta; Search for: Canadian Rail Research Laboratory |
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| Affiliation | - National Research Council of Canada. Automotive and Surface Transportation
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| Format | Text, Article |
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| Conference | Canadian and Cold Regions Rail Research Conference, CCRC 2021, November 9-10, 2021, Virtual Event |
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| Subject | Canada; cold regions; railway engineering; railways; rail safety; rail systems; rail industry |
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| Abstract | Regulatory and special visual inspection of railway tracks is important to ensure the safe and secure operation of trains. Due to increased traffic volumes, operational speeds and axle loads, new technologies are emerging to collect and monitor data more frequently and in a shorter schedule-window. This paper presents a feasibility study to evaluate ride quality and rail surface roughness from car body and axle box accelerations mounted on service passenger rail cars. Accelerometers are mounted under car body of a rail car and on two axle boxes to evaluate ride quality and rail surface roughness, respectively. The repeatability of measurements, and impact of track features such as bridges, grade crossing and switches on the ride quality is studied by applying a weighted filtering method as per ISO 2631-1997 standard. The ability of axlebox acceleration signals to quantify the rail surface roughness are evaluated by comparing the calculated rail displacements with rail surface profile measurements recorded by a track geometry inspection car. Rail surface relative displacements are calculated from double integration of axle-box accelerations. The results of vibration analysis show that there is a meaningful correlation between increased magnitude of ride quality index and the location of some track features. The comparison between the calculated rail displacements and measured rail surface profile along the entire length of the studied track confirmed that the axle-box acceleration and the applied analytical technique are appropriate for evaluation of rail surface roughness. |
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| Publication date | 2021-11-09 |
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| Publisher | University of Alberta. Deptment of Civil & Environmental Engineering |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 611e3319-3688-42ea-b76d-38dc2ffa968b |
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| Record created | 2022-09-08 |
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| Record modified | 2022-09-13 |
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