Analytical Selection of Material for Lifan 520 model vehicle Brake Disc
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Date
2018-06
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Publisher
AAU
Abstract
In automotive engineering sector, the safety aspect is a major consideration in development of a new
vehicle. Each single system has been studied and developed in order to meet safety requirements. Widely
Disc Type Brake used for this safety requirements and manufactured for first time in 1902 G.C in United
Kingdom. In Braking time, the Kinetic energy of a Vehicle changed to heat energy. This high temperature
leads to reduce the rotors performance and failures will occur. The existing material of Brake Disc has
suitable properties to facilitate this reduction in performance of Brake Disc.
The objective of this research is analytically, Selecting alternative material for Lifan 520 model vehicle
Disc Brake Rotor. the weighting of material is done among Cast Iron, Stainless Steel, carbon-ceramic,
Aluminum Metal Matrix composite and Titanium alloys. From those Candidate Materials, Digital Logic
Methods (DLM) is a method used to Select suitable material for Brake Rotor. Density, wear rate, coefficient
of friction, compressive strength, Specific heat and Cost are a property of Candidate materials that
considered in selection of suitable material for brake disc by Digital Logic method.
The result of this analysis shows that, Aluminum Metal Matrix composite (AMMC) is the material that
higher value of figure of merit (FOM) from all above five Candidate materials. Therefore, this material is
best material for Disc Brake than Gray Cast Iron (GCI). Lifan 520 model vehicle is selected for this
purpose. Some variables such as: Deceleration of a vehicle, Stopping Distance, mass of Disc, deformation
and Von-misses Stress on Brake Disc is calculated in order to see the visible differences between Disc
Brake made from new(AMMC) and old(GCI) materials. A 3D Modeling of Disc Brake is done by
SOLIDWORK 2018® modeling software and FEA ANSYS 18.2® is used to calculate mass of Disc,
deformation and Von-misses Stress.
Result obtained from Numerical and FEA showed that; Disc Brake made from AMMC reduce the mass by
62.4 %, increase Deceleration by 33.16%, Reduce Stopping Distance by 31.7%. Generally, it increases
over all performance of Brake Disc by 8.7%. Therefore, based on Shown result, it can be concluding that
Aluminum Metal Matrix composite (AMMC) material is the Suitable material for Lifan 520 brake disc.
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Keywords
Disc Brake, Digital Logic methods, FEA, Friction Material