Application pin-on-disc method for wear rate prediction on interaction between rail and wheel

2017 1st International Conference on Engineering and Applied Technology

Windarta^1

Mechanical Engineering Department, Universitas Muhammadiyah Jakarta, Jl. Cempaka Putih Tengah 27, Jakarta Pusat

10510, Indonesia^1

关键词: Contact surface;    Longitudinal axis;    Maximum temperature;    Parabolic curve;    Pin-on-disc method;    Steady-state condition;    Surface shear stress;    Tangential contact stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/403/1/012099/pdf
DOI  :  10.1088/1757-899X/403/1/012099

来源: IOP

【 摘 要 】

This paper aim to predict wear rate on interaction between rail and wheel using pin-on-disc method. The wear tests were performed on Ducom multispecimen test machine designed according to ASTM G99 standards. The applied loads selected were 40 N, 60 N, 80 N, and 100 N with a common rotating speed of 100 rpm. Pin-on-disc result was used to predict wear rate at real condition. The results show that stress distribution can be used to predict rail and wheel surfaces evolution. It also can be used in a specific condition for prediction at a real applied load. Depth of wear curvature indicate parabolic curve. Depth of wear are 89.33 μm, 127.25 μm, 263.01 μm, and 395.67 μm for 40 N, 60 N, 80 N, and 100 N applied loads respectively in steady state condition. Based on tangential contact stress, the surface shear stress increase in magnitude from leading edge to reach maximum value 668 MPa at longitudinal axis x = -0.73 mm. The adhesion part dominated the contact patch area. The maximum temperature 828.58 °C occurs at the contact surface.