Validation and improvement of a bicycle crank arm based in numerical simulation and uncertainty quantification

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Show simple item record Gutiérrez Moizant, Ramón Alberto Ramírez Berasategui, María Beatriz Calvo Ramos, José Antonio Álvarez Caldas, Carolina 2022-06-30T09:50:48Z 2022-06-30T09:50:48Z 2020-03-25
dc.identifier.bibliographicCitation Gutiérrez-Moizant, R., Ramírez-Berasategui, M., Calvo, J. A., & Álvarez-Caldas, C. (2020). Validation and Improvement of a Bicycle Crank Arm Based in Numerical Simulation and Uncertainty Quantification. In Sensors (Vol. 20, Issue 7, p. 1814). MDPI AG.
dc.identifier.issn 1424-3210
dc.description.abstract 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 by the international bicycle standard. Additionally, it can be suggested to the standard to include the verification that no permanent deformations have occurred in the crank arm during the fatigue test. It has been observed that, in some cases this bicycle component fulfils the minimum safety requirements, but presents areas with plastic strains, which if not taken into account can increase the risk of injury for the cyclist due to unexpected failure of the component.
dc.format.extent 27
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2020 by the authors.
dc.rights Atribución 3.0 España
dc.subject.other Crank Arm
dc.subject.other Fatigue Test
dc.subject.other Metamodel
dc.subject.other Statistical Validation
dc.subject.other Strain Gauges
dc.subject.other Uncertainty Propagation
dc.title Validation and improvement of a bicycle crank arm based in numerical simulation and uncertainty quantification
dc.type article
dc.subject.eciencia Ingeniería Mecánica
dc.identifier.doi 10.3390/s20071814
dc.rights.accessRights openAccess
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 7
dc.identifier.publicationlastpage 27
dc.identifier.publicationtitle Sensors
dc.identifier.publicationvolume 20
dc.identifier.uxxi AR/0000025678
dc.affiliation.dpto UC3M. Departamento de Ingeniería Mecánica
dc.affiliation.grupoinv UC3M. Grupo de Investigación: MECATRAN: Mecánica Experimental, Cálculo y Transportes
dc.affiliation.area UC3M. Área de Ingeniería Mecánica
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