Abstract
Automated People Mover, APM, used for public transport system is automated guideway transit. Its steering inputs are provided to vehicle bogies through lateral guidance wheels that travel in continuous contact with guideway-mounted guide rails. Due to the design and manufacturing of the prototype of APM in KMUTNB, shape of guide wheels and guide rail possibly lead to the deterioration of guide wheels or rail due to rolling contact fatigue on those surfaces. The objective of this research is preliminary to optimize the methodology of finite element calculation for determining the local stress occurred on the surface of guide wheel or guide rail in order to predict the behavior of rolling contact fatigue and lifetime of guide wheel or guide rail. The results showed that the different models led to the different solution and calculation time. The optimized model for wheel and rail were finally selected for final calculation with cyclic simulation. In addition, the modified rail can be developed in order to reduce maximum stress on the both surfaces, leading to the more fatigue life. The several methodologies for simulation were further discussed in this research.
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