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Listar por palabra clave "Friction"

Mostrando ítems 1-20 de 25

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Advanced interface models for metal forming simulations

Schmid, Steven R.; Liu, J.; Sellés Cantó, Miguel Ángel; Pasang, Timotius (Elsevier, 2013-11)

Friction and heat transfer in metal forming simulations are usually restricted by software to be interface constants, a situation not reflected by the mechanics of real manufacturing processes. A better simulation approach ...
Análisis del flujo alrededor de cilindros horizontales con el modelo unidimensional de HECRAS

Dolz Ausina, Guillermo (Universitat Politècnica de València, 2021-01-26)

[ES] El objetivo del trabajo es averiguar si el modelo unidimensional de HECRAS es adecuado para calcular las pérdidas en el flujo detrás de los cilindros horizontales. Los cilindros son colocados en distintas disposiciones, ...
Análisis, diseño y puesta en marcha de una maqueta para la medida de fricción en la interfaz pistón-camisa en un motor de combustión interna alternativo (MCIA)

Cerrudo Gallego, Daniel (Universitat Politècnica de València, 2019-09-05)

[ES] Partiendo del diseño estructural y trabajo previo realizado en la maqueta para la medida de fricción de tipo floating liner este trabajo final de Máster está enfocado en el análisis, diseño de los sistemas de lubricación, ...
Comportamiento tribológico en las uniones soldadas, análisis del método de desgaste como medida de mejora a la seguridad estructural

Martínez Alcón, Jorge; Pascual Guillamón, Manuel; Solano García, Lorenzo; Cárcel-Carrasco, Javier; Salas Vicente, Fidel (Área de Innovación y Desarrollo,S.L., 2021-11-18)

[ES] The study describes the process of analyzing the tribological behavior of welded joints, present in metallic structures and other structural elements affected by friction and wear, used in construction processes. Its ...
Diseño de una gorra funcional con ornamentación aplicada por el sistema tufting

Montaner Tarrazona, Hugo (Universitat Politècnica de València, 2024-10-16)

[ES] Para el proyecto que se va a describir a continuación se ha diseñado una gama de tres gorras que ayudan a los usuarios tanto a prevenir como a tratar determinadas afecciones capilares. Concretamente se abordan la ...
Diseño, desarrollo e instrumentación de un tribómetro reciprocante

Toledo Gil, Alba (Universitat Politècnica de València, 2024-10-02)

[ES] El Trabajo Fin de Grado tiene como objetivo el diseño y desarrollo de un tribómetro capaz de llevar a cabo diferentes ensayos del tipo reciprocante, que incorpore un sistema de control de la fuerza normal ejercida. ...
Dry sliding frictional characteristics of ZE10 and AZ80 magnesium strips under plastic deformation

Ramezani, Maziar; Neitzert, Thomas; Pasang, Timotius; Sellés Cantó, Miguel Ángel (Elsevier, 2015-02)

Frictional behaviour of ZE10 and AZ80 magnesium alloys was investigated using a sheet metal forming simulator (SMFS) with a steel pin as counterpart on dry sliding conditions. Friction coefficients were measured within a ...
Effect of CNFs content on the tribological behaviour of spark plasma sintering ceramic-CNFs composites

Borrell Tomás, María Amparo; Torrecillas, R.; Rocha, V. G.; Fernandez, A.; Bonache Bezares, Victoria; Salvador Moya, Mª Dolores (Elsevier, 2012-01-27)

Alumina-carbon nanofibres (CNFs) and silicon carbide-CNFs nanocomposites with different volume fraction of CNFs (0-100vol.%) were obtained by spark plasma sintering. The effect of CNFs content on the tribological behaviour ...
Exact solution for the time-dependent temperature field in dry grinding: application to segmental wheels

González-Santander Martínez, Juan Luis; Valdes Placeres, J. M.; Isidro San Juan, José María (Hindawi Publishing Corporation, 2011)

We present a closed analytical solution for the time evolution of the temperature field in dry grinding for any time-dependent friction profile between the grinding wheel and the workpiece. We base our solution in the ...
Existence of an optimum dynamic coefficient of friction and the influence on human gait variability

Zamora Alvarez, Tomas Augusto; Alcantara Alcover, Enrique; Artacho Ramírez, Miguel Ángel; Valero Martínez, Marta (Elsevier, 2011-09)

The existence of a range of optimal coefficient of friction that encompasses safety and comfort has not been addressed before. This paper assesses the existence of such a range and its relationship with the variability of ...
Fretting fatigue wear behavior of Y-TZP dental ceramics processed by non-conventional microwave sintering

PRESENDA-BARRERA, ALVARO; Salvador Moya, Mª Dolores; Vleugels, Jozef; Moreno, Rodrigo; Borrell Tomás, María Amparo (Blackwell Publishing, 2017)

[EN] The fretting wear behavior of self-mated Y-TZP dental materials obtained by non-conventional microwave and conventional sintering has been investigated. Two 3Y-TZP materials, a widely utilized commercial dental ceramic ...
Frictional properties of AZ80 and ZE10 magnesium alloys under dry and lubricated contact conditions

Ramezani, Maziar; Neitzert, Thomas; Pasang, Timotius; Sellés Cantó, Miguel Ángel (Elsevier, 2014)

The frictional properties of two types of magnesium alloys, i.e. AZ80 and ZE10 were investigated. A purpose-developed sheet metal forming simulator was used to conduct the experiments under constant plastic deformation. ...
Identificación paramétrica y modelado de fricción. Aplicación a vehículos ligeros

Cano Mancebo, Javier (Universitat Politècnica de València, 2015-10-19)

[EN] This work will propose first to study and analyze different models of friction. Further, the identification of the models of friction parameters will be done. Finally, different nonlinear controllers that are able to ...
Influence of clay properties on shoe-kinematics and friction during tennis movements

Ura, Daniel; Carre, Matt J.; Charlton, Hannah; Capel Davies, Jamie; Miller, Stuart; Sanchís Almenara, Mercedes; Astiz, Jaime; De Alfonso Mustienes, Alejo (Elsevier, 2014)

[EN] Tennis is a sport characterised by being played on different surfaces: hard court, grass and clay. These surfaces influence the style of play and tennis specific movements. Specifically on clay, most of the common ...
Investigación de modelos de pérdidas de calor y fricción para el diseño preliminar de novedosos motores de pistón en aeronaves

Gil Merino, Alejandro (Universitat Politècnica de València, 2020-05-13)

[ES] Este trabajo fin de máster realizado en Stuttgart forma parte de un proyecto de investigación sobre motores de pistón en la aeronáutica. Como el título dice, este trabajo se ha focalizado en los modelos de pérdidas ...
Large deformation frictional contact analysis with immersed boundary method

Navarro-Jiménez, José-Manuel; Tur Valiente, Manuel; Albelda Vitoria, José; Ródenas, Juan José (Springer-Verlag, 2018)

[EN] This paper proposes a method of solving 3D large deformation frictional contact problems with the Cartesian Grid Finite Element Method. A stabilized augmented Lagrangian contact formulation is developed using a smooth ...
Modelado 1D de las pérdidas mecánicas en un MCIA y su distribución durante un ciclo real de conducción

Jiménez Reyes, Antonio José (Universitat Politècnica de València, 2021-01-14)

[ES] En la última década, el incremento de las emisiones de gases de efecto invernadero a la atmósfera ha servido de impulso a investigadores y fabricantes para el desarrollo de motores más eficientes, con menos consumo ...
Modelado y control con compensación de fricción de un sistema pendubot

Soto, I.; Campa, R.; Sánchez-Mazuca, S. (Universitat Politècnica de València, 2020-12-23)

[EN] The pendubot is a two degree of freedom mechanical underactuated system that is used as an educational and research platform in the areas of robotics and control. It is considered as an underactuated system because ...
One-Dimensional Modeling of Mechanical and Friction Losses Distribution in a Four-Stroke Internal Combustion Engine

Tormos, B.; Martín, Jaime; Blanco-Cavero, Diego; Jiménez-Reyes, Antonio José (ASME International, 2020)

[EN] As the road transport accounts between 15%-18% of worldwide CO2 emissions, the automotive sector has a deep commitment to mitigate global warming. Consequently, stricter regulations have been adopted by the European ...
Refined Element Discontinuous Numerical Analysis of Dry-Contact Masonry Arches

Pérez-Aparicio, José L.; Bravo, R.; Ortiz Rossini, Pablo (Elsevier, 2013-03)

The behavior of buried masonry arches is studied in this article using the Discontinuous Deformation Analysis (DDA), a numerical method that allows for the physical simulation of the intrinsic structure dis- continuities ...