The Nose Shape Design Of Bullet Train Using High Profile Curve

Che Noh, Hanis Amirah (2017) The Nose Shape Design Of Bullet Train Using High Profile Curve. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Public transport is very important in our daily life.In Japan,high speed bullet train is invented with speed of 320 km/h known as Shinkansen.The Shinkansen bullet train is inspired by Kingfisher beak.The nose shape design of the bullet train is streamlined which influence the aerodynamic consumption.The invention is success because it increases the speed of Shinkansen bullet train and reduces noise when moving through the tunnels.However, the nose shape design causes the production cost of the Shinkansen bullet train increase.This is due to the material issues and building time.The material cost is high when developing the long streamline shaped nose design.The high profile definition curve is then applies to improve the nose shape design of Shinkansen bullet train.The C-shaped transition curve is chosen to solve this problem.Solidworks SimulationXpress and ANSYS Fluid Flow (FLUENT) packages are the software that been utilized in this research study.The results obtained in Linear Static Analysis illustrated that the increment in the deformation and decrement in Von Mises stress will contribute the improvement design to slowly undergoes the failure.The prediction of fatigue can be calculates using the output parameter from linear static analysis with the computation of Newton Interpolation Polynomial in fatigue analysis.Both of the existing and improvement designs are validate by computing Coefficient of Variation (CV) and Design Efficiency (DE) in dynamic analysis.DE for the improvement design is 117%.When the value of design efficiency is more than 85%,the design is accepted and can be manufactures.CV for improvement design is 85.36% for pressure and 55.83% for velocity while CV for existing design is 89.24% for pressure and 56.36% for velocity.Improvement design has better stability compared to existing design because it has lower value of CV that shows better quality and stability.

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