The optimum design of an onboard friction control system between wheel and rail in a railway system for improved curving negotiation

• Published in: Vehicle System Dynamics Vol. 44; no. sup1; pp. 531 - 540
• Main Authors: Matsumoto, Kosuke, Suda, Yoshihiro, Fujii, Takeshi, Komine, Hisanao, Tomeoka, Masao, Satoh, Yoshi, Nakai, Takuji, Tanimoto, Masuhisa, Kishimoto, Yasushi
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Colchester Taylor & Francis 01.01.2006
• Subjects: Acoustics; Applied sciences; Boundary condition; Contact problem; Exact sciences and technology; Friction; Fundamental areas of phenomenology (including applications); Machine components; Mechanical contact (friction...); Mechanical engineering. Machine design; Noise; Physics; Railway; Solid mechanics; Springs and dampers; Structural acoustics and vibration; Structural and continuum mechanics; Measuring machine; Testing machine; Railway; Noise; Boundary condition; Vehicle dynamics; Optimization; Corrugated surface; Tool wear; Friction wheel; Contact problem; Rail transportation; Consumption; Data analysis; Curve; Rail vehicle; Mechanical contact; Experimental study; Subways; Friction; Urban transportation; Bargaining; Groove; Squealing; Structural acoustics
• ISSN: 0042-3114; 1744-5159
• DOI: 10.1080/00423110600875294

In the subway lines of Tokyo (Tokyo Metro), there are many tight curves that may cause squeal noise, excessive rail/wheel wear and rail corrugation. To solve these serious problems, an onboard friction control system with friction modifier has been developed by the authors and has been equipped on commercial trains as a trial. With this system, the balance between supply and consumption of friction modifier is very important. That is to say, in order to obtain the maximum effect of friction control steadily, it is natural that an appropriate quantity of friction modifier should be required. In this report, results of experiments with a two-roller-rig testing machine, and analysis of the observed data in commercial train tests are introduced. In addition, the authors considered the method to realize the appropriate balance between supply and consumption of friction modifier.