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Validation and Improvement of a Bicycle Crank Arm Based in Numerical Simulation and Uncertainty Quantification by Gutiérrez-Moizant, R.; Ramírez-Berasategui, M.; Calvo, José A.; Ãlvarez-Caldas, Carolina is a Engineering article available to read on EtoBox.

What is Validation and Improvement of a Bicycle Crank Arm Based in Numerical Simulation and Uncertainty Quantification about?

In this study, a finite element model of a bicycle crank arm are compared to experimental results. The structural integrity of the crank arm was analyzed in a universal dynamic test bench. The instrumentation used has allowed us to know the fatigue behavior of the component tested. For this, the prototype was instrumented with three rectangular strain gauge rosettes bonded in areas where failure was expected. With the measurements made by strain gauges and the forces registers from the load cell used, it has been possible to determine the state of the stresses for different loads and boundary conditions, which has subsequently been compared with a finite element model. The simulations show a good agreement with the experimental results, when the potential sources of uncertainties are considered in the validation process. This analysis allowed us to improve the original design, reducing its weight by 15%. The study allows us to identify the manufacturing process that requires the best metrological control to avoid premature crank failure. Finally, the numerical fatigue analysis carried out allows us to conclude that the new crank arm can satisfy the structural performance demanded b

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Author

Gutiérrez-Moizant, R.; Ramírez-Berasategui, M.; Calvo, José A.; Ãlvarez-Caldas, Carolina

Publisher

Molecular Diversity Preservation International; MDPI AG; Multidisciplinary Digital Publishing Institute (MDPI); Basel: Molecular Diversity Preservation International (MDPI), 2001-; Publons (ISSN 1424-8220)

Published

2020

Language

EN

Field

Engineering (Physical Sciences)