Optimum Design of Locomotive Disk Brake By Using Finite Element Method
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Date
2015-05
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Addis Ababa University
Abstract
A transient analysis for the thermo elastic contact problem of the locomotive disk brakes with heat
generation is performed using the finite element analysis. To analyze the thermo elastic phenomenon
occurring in the locomotive disk brakes, the occupied heat conduction and elastic equations are solved
with contact problems. The numerical simulation for the thermo elastic behavior of locomotive disk
brake is obtained in the repeated brake condition. The computational results are presented for the
distribution of heat flux and temperature on each friction surface between the contacting bodies.
Also, thermo elastic instability (TIE) phenomenon (the unstable growth of contact pressure and
temperature) is investigated in the present study, and the influence of the material properties on the
thermo elastic behaviors (the maximum temperature on the friction surfaces) is investigated to facilitate
the conceptual design of the disk brake system. Based on these numerical results, the thermo elastic
behaviors of the four brake materials are discussed and stainless steel with excellent mechanical and
thermal properties is selected for design purpose.
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Keywords
Locomotive Disc Brake, Finite Element Method, Optimum Design