Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Main positions:Associate Professor
Other Post:世界交通运输大会(WTC)轨道交通学部轨道交通装备系统科学“机车车辆”技术委员会 联合主席
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Impact Factor:3.327
DOI number:10.1016/j.measurement.2020.108244
Journal:Measurement
Key Words:Wayside measurement method; Wheel-rail contact forces; Contact positions; Theoretical formulas; FEA; Strain gauge configuration
Abstract:Wheel-rail contact forces affect the safety, stability, economy and smooth running of the railway system. Measuring these forces and their positions remains a challenge due to the coupling interference of strain signals under multi-loading scenarios. This paper proposes a new wayside method to measure the magnitudes and positions of the lateral and vertical contact forces. Theoretical formulations for the contact forces and their positions with respect to the vertical strain sum and difference at rail web sides, are derived by the results of finite element analysis (FEA). A subtle strain gauge configuration is designed to measure the sum and difference of strains precisely. The robustness of the formulas is confirmed through extra FEA and the proposed method is validated by laboratory tests. The developed method provides an accurate and economic option for monitoring the wheel-rail contact status.
Note:JCR-Q1
Indexed by:Journal paper
Volume:166
Issue:108244
Translation or Not:no
Date of Publication:2020-06-07