Browsing by Author "1544f7e6960830fd6989ed5b502fd810"
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Análisis de distribución de carga en husillos a bolas para altas cargas mediante modelos de elementos finitos optimizados
Sangalli, Luca; Oyanguren , Aitor; Larrañaga Amilibia, Jon; Ulacia, Ibai (2023)Los husillos a bolas son actuadores electro-mecánicos ampliamente utilizados en máquinas y mecanismos como solución de posicionamiento lineal, caracterizándose por su gran rigidez y capacidad de carga. Estos sistemas han ... -
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 ... -
Machine Learning-Based Sensitivity Analysis of Geometric and Material Variables of Beam-to-upright bolt-less Connection
Calispa, Marcelo; Larrañaga Amilibia, Jon; Oyanguren , Aitor; Alberdi Orbegozo, Beñat; Iñurritegui-Marroquin, Aurea; Santamaria, David; Ulacia, Ibai (Wiley, 2025)Beam-to-upright semi-rigid assemblies are widely recognized in the storage warehouse industry for their lightweight nature, ease of installation, and favourable strength-to-weight ratio. Extensive research has focused on ... -
Non-destructive experimental technique to determine ball contact load in rolling machine elements
Maiztegi Iparragirre, 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 ... -
Numerical characterisation of reaction forces’ contribution to initial stiffness in speed-lock beam-to-upright connections
Santamaria, David; Oyanguren , Aitor; Iñurritegui-Marroquin, Aurea; Larrañaga Amilibia, Jon; Ulacia, Ibai (Elsevier, 2024)This article presents a detailed numerical model of speed-lock (boltless) beam-to-upright connections in steel storage pallet rack systems. The model is capable of predicting initial stiffness and characterising the reaction ... -
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 Modeling and Design of Thermoelectric Cooling Systems and Its Application to Manufacturing Machines
Gallo-Fernández, Angel; Arana, Aitor; Oyanguren , Aitor; García, G.; Barbero Merino, Antonio Jose; Larrañaga Amilibia, Jon; Ulacia, Ibai (Springer, 2013)In this work the properties of thermoelectric modules (TEMs) and their behavior have been numerically modeled. Moreover, their applications very often require modeling not only of the TEM but also of the working environment ... -
Numerical study on the effectiveness of the optimization of the load distribution in ball screw actuators
Sangalli, Luca; Oyanguren , Aitor; Larrañaga Amilibia, Jon; Izquierdo Ortiz de Landaluce, Mikel; Ulacia, Ibai (Elsevier, 2024)Load distribution in ball screws is characterized by non-uniformity, leading to imbalances in the contact load of the balls along the nut. This non-uniformity negatively impacts the stiffness, accuracy and service life of ... -
Thermo-mechanical modelling of ball screw preload force variation in different working conditions
Oyanguren , Aitor; Larrañaga Amilibia, Jon; Ulacia, Ibai (Springer, 2018)Ball screws are robust and economical linear positioning systems widely employed in high-speed and high-precision machines. Due to precision and stability requirements, the preload force is considered one of the main ...
