The Little Engine That Could: Enhancing Traction through Friction

Overview

Objectives/Goals The objective is to find a material which could enhance the traction for a train. Though fine silica (sand) is already employed in certain situations, a different substance might provide greater value. Methods/Materials An experimental device was constructed using two abutting fly-wheels to simulate a train and its track. A cycle computer with cable and sensor was used to measure how the application of different materials improved the ability of the wheels to reach a maximum acceleration. Results Garnet 100 grit performed most desirably with an average increase in acceleration of 44.87%. Garnet 36 grit also achieved a higher percent than sand (37.93%) with a 39.85% increase. Garnet 80 grit, Garnet 60 grit, Vitreous Smelter Slag 30-60 grit and Vitreous Smelter Slag 35 grit improved acceleration 33.74%, 37.64%, 31.81%, and 29.35% respectively. Vitreous Smelter Slag 16-30 grit and beeswax rendered no successful reads. Conclusions/Discussion Garnet 100 grit performed an average 6.94% better than silica due to its high density and fine consistency. It is able to penetrate and fill small crevices in a train's wheels while withstanding the weight of a locomotive.

Awards (1)

• Category Award

Competition history

• CSEF 2004 Applied Mechanics/ Structures & Mechanisms/ Manufacturing · Entry J0219

Resources

• CSEF project summary ↗

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