Listar Ikerketa-Artikuluak por autor "4c5040fc9117baca025489610d7781a5"
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Computerized generation and tooth contact analysis of spherical gear couplings for high misalignment applications
Iñurritegui-Marroquin, Aurea; Arana, Aitor; Larrañaga Amilibia, Jon; Ulacia, Ibai (Elsevier Ltd., 2021)Spherical gear couplings are a type of toothed coupling where the external spline usually requires highly crowned tooth surfaces to absorb high misalignments. The teeth of the external spline (or hub) may present cross ... -
A general kinematic model for lubricated ball bearings based on the minimum energy hypothesis
Alberdi Quevedo, Pello; Arana, Aitor; Oyanguren , Aitor; Larrañaga Amilibia, Jon; Ulacia, Ibai (Elsevier, 2024)Accurately predicting the performance of lubricated rolling elements is critical for certain key bearing applications. A widely employed simulation technique is quasi-static models, which although computationally efficient ... -
An Innovative Energy Harvesting Shock Absorber System for Motorbikes
Izquierdo Ortiz de Landaluce, Mikel; Ulacia, Ibai (IEEE, 2022)This article presents an innovative energy recovery shock absorber system for motorcycles. The shock absorber is named synchronous pulley - energy harvesting shock absorber (SP-EHSA). The SP-EHSA is the first system ... -
Load distribution and tooth root stress of highly crowned spherical gear couplings working at high misalignment angles
Iñurritegui-Marroquin, Aurea; Larrañaga Amilibia, Jon; Arana, Aitor; Ulacia, Ibai (Elsevier, 2023)Spherical gear couplings are commonly used mechanical components to transmit power between highly misaligned rotating shafts. For that, gear couplings are manufactured with high longitudinal crowning and are usually small ... -
Mecanismo de ancho de vía variable para vehículo eléctrico urbano de tres ruedas
Izquierdo Ortiz de Landaluce, Mikel; Ulacia, Ibai; Gallego, Ivan; Eraña Larrañaga, Iñigo (UNED, 2018)Debido a las dimensiones de los vehículos actuales, la baja tasa de ocupación de los mismos y el aumento de la población mundial, los fabricantes de vehículos están desarrollando diseños compactos orientados a la movilidad ... -
Non-destructive experimental technique to determine ball contact load in rolling machine elements
Maiztegui, Mattin; Larrañaga Amilibia, Jon; Arana, Aitor; Oyanguren , Aitor; Ulacia, Ibai (Elsevier, 2024)Rolling machine elements, such as ball bearings, ball screws, or guiding systems are commonly used in diverse industrial applications. These components typically assume uniform load distribution among the balls or rely on ... -
A novel formulation for radial fretting wear: Application to false brinelling in thrust bearings
Llavori, Inigo; Ulacia, Ibai; Larrañaga Amilibia, Jon (Elsevier Ltd., 2021)Radial fretting is defined as the damage caused by the relative motion of a ball under a variable normal load. The conducted experimental tests proved the existence of this damage even in contacting bodies with similar ... -
Numerical characterization of local and global non-uniformities in the load distribution in ball screws
Sangalli, Luca; Oyanguren , Aitor; Larrañaga Amilibia, Jon; Arana, Aitor; Izquierdo Ortiz de Landaluce, Mikel; Ulacia, Ibai (Springer, 2021)Load distribution in ball screws is a representation of the ball contact stress, and it is fundamental to understanding the behavior of these machine elements. This work aims to conduct a multi-variable analysis of the ... -
Numerical-experimental analysis of highly crowned spherical gear couplings working at high misalignment angles
Iñurritegui-Marroquin, Aurea; Larrañaga Amilibia, Jon; Arana, Aitor; Ulacia, Ibai (Elsevier, 2023)Spherical gear couplings are characterized by their high capacity to transfer power between rotating shafts in highly misaligned conditions. They are usually small because of space restrictions and require a high amount ... -
Optimization of the semi-hexagonal geometry of a composite crush structure by finite element analysis
Esnaola, Aritz; Aurrekoetxea, Jon; Gallego, Ivan; Ulacia, Ibai; Elguezabal Lazcano, Borja (Elsevier, 2016)In the present paper a numerical model for predicting the crushing behaviour of semi-hexagonal E-glass/polyester composite structures has been developed. Qualitative and quantitative analysis have shown that the results ... -
Prediction of the maximum tooth root stress for fatigue analysis of highly crowned spherical gear couplings working at high misaligned conditions
Iñurritegui-Marroquin, Aurea; Larrañaga Amilibia, Jon; Arana, Aitor; Ulacia, Ibai (Elsevier, 2024)Spherical gear couplings efficiently transfer power between highly misaligned rotating shafts, featuring high longitudinal crowning in their design. At high misalignment angles, the contact point shifts across the face ... -
Procedure to predict residual stress pattern in spray transfer multipass welding
Ulacia, Ibai; Lopez-Jauregi, Arkaitz; Esnaola, Jon Ander; Ugarte, Done; Torca, Ireneo (Springer, 2015)Gas metal arc welding (GMAW) is one of the most used joining method in the industry. However, one of the main problems of this process is the generation of residual stresses which have direct impact on the fatigue life of ... -
Spherical gear coupling design space analysis for high misalignment applications
Iñurritegui-Marroquin, Aurea; Arana, Aitor; Larrañaga Amilibia, Jon; Ulacia, Ibai (Elsevier Ltd., 2022)Spherical gear couplings are machine elements that enable power transmission between highly misaligned shafts. The highly crowned tooth surfaces and the presence of undercut sections, have been a matter of disagreement ... -
The combined effect of contact interface size and spin on lubricated traction in rolling-sliding point contacts
Iribecampos Juaristi, Mikel; Ulacia, Ibai; Arana, Aitor; Larrañaga Amilibia, Jon (Elsevier, 2023)Traction in lubricated rolling and sliding contacts plays an important role in the performance of several machine elements. Many of such elements are subject to spin motion, which can affect their performance. Recent studies ...