Actual states of wheel/rail contact forces and friction on sharp curves - Continuous monitoring from in-service trains and numerical simulations

作者：Matsumoto Akira^*; Sato Yasuhiro; Ohno Hiroyuki; Shimizu Makoto; Kurihara Jun; Saitou Takuya; Michitsuji Yohei; Matsui Ryo; Tanimoto Masuhisa; Mizuno Masa aki

来源：Wear, 2014, 314(1-2): 189-197.

DOI：10.1016/j.wear.2013.11.046

• Rail-wheel tribology
• Contact mechanics
• Rolling friction
• Condition monitoring
• Lubrication

The authors researched and developed a new measurement method that can continuously measure the contact forces and derailment coefficients at all curves of commercial lines. This new method can determine the derailment coefficients, which change according to the friction coefficients and other factors, using the measuring system on in-service trains. In this paper, the analysis results for actual curve data collected on commercial subway lines are introduced. Additionally, parameters that are influential on the changes of the derailment coefficients, such as %26quot;friction%26quot; and %26quot;track irregularity,%26quot; are discussed using the regression analysis on the accumulated data with the newly developed system.

• 出版日期2014-6-15