GREVTAM - Grup de Recerca en Vibracions i Teoria i Anàlisis de Màquines: Enviaments recents

Ara es mostren els items 1-12 de 53

    • Minimizing residual vibrations for non-zero initial states: Application to an emergency stop of a crane 

      Veciana Fontanet, Joaquim Maria; Cardona Foix, Salvador; Català Calderon, Pau (Springer, 2013-11)
      Article
      Accés obert
      This paper presents an approach to design command inputs for the reduction of residual vibrations in mechanical systems for nonzero initial states. The technique starts with the development of a standard input shaper in a ...

    • A mathematical model to study railway track dynamics for the prediction of vibration levels generated by rail vehicles 

      Otero Yugat, Jesús; Martínez Miralles, Jordi Ramon; Santos López, M. Antonia de los; Cardona Foix, Salvador (2012-01)
      Article
      Accés obert
      This article presents a mathematical model aimed at predicting wheel–rail contact vibration force arising from wheel profile irregularities. Prediction of vibrations caused by a passing train is a basic factor in environmental ...

    • Análisis del efecto del apriete y la rigidez de contacto en la precisión de un mecanismo de levas conjugadas 

      Català Calderon, Pau; Cardona Foix, Salvador; Santos López, M. Antonia de los (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Los mecanismos de levas conjugadas requieren de un ajuste con apriete para compensar las tolerancias de fabricación y montaje y al mismo tiempo evitar la separación de las superficies de las levas y los ...

    • Evaluation of the influence of a planned interference fit on the expected fatigue life of a conjugate cam mechanism- A case study 

      Català Calderon, Pau; Santos López, M. Antonia de los; Veciana Fontanet, Joaquim Maria; Cardona Foix, Salvador (2013-08-01)
      Article
      Accés restringit per política de l'editorial
      Due to dynamic effects, clearances, manufacturing and assembly errors in form-closed cam mechanisms, the follower jump can also occur. For conjugate cam mechanisms a technique to avoid the follower jump without the use of ...

    • Modified adaptive input shaping for maneuvering cranes using a feedback MEM gyroscope with null drift 

      Veciana Fontanet, Joaquim Maria; Cardona Foix, Salvador; Català Calderon, Pau (Springer, 2015-08-04)
      Article
      Accés obert
      This paper presents an adaptive algorithm to reduce residual vibrations when the feedback sensor used has null drift along the time. The adaptive approaches are useful to deal with large variations of the system parameters ...

    • Use of single board computers as smart sensors for manufacturing industry 

      Gómez, Agustín; Cuiñas Vázquez, Daniel; Català Calderon, Pau; Xin, Li; Weidong, Li; Lack, Donald; Conway, Steward (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The continuously growing presence of cyber-physical systems in the industry, especially in the field of processes automation and control, represents the paradigm of the so called fourth industrial revolution, in which the ...

    • The use of hybrid CO2+MQL in machining operations 

      Pereira, Octavio; Català Calderon, Pau; Rodríguez, Adrian; Ostra, Txomin; Vivancos Calvet, Joan; Rivero, Asunción; López de Lacalle, Luis Norberto (2015-12-28)
      Article
      Accés obert
      Nowadays, the environmental concern in machining industry is a fact. Because of that, in this article a new cooling-lubrication system which combines CO2 cryogenic and MQL technologies is presented. The aim of this new ...

    • Use of single board computers as smart sensors in the manufacturing industry 

      Gomez, Agustin; Cuiñas Vázquez, Daniel; Català Calderon, Pau; Xin, Lin; Li, Weidong; Conway, Stewart; Lack, Donald (2015-12-28)
      Article
      Accés obert
      The continuously growing presence of cyber-physical systems in the industry, especially in the field of processes automation and control, represents the paradigm of the so called fourth industrial revolution, in which the ...

    • Avoiding early failures in conjugate cam mechanism by means of different design strategies 

      Català Calderon, Pau; Santos López, M. Antonia de los; Veciana Fontanet, Joaquim Maria; Cardona Foix, Salvador (2016-01-01)
      Article
      Accés restringit per política de l'editorial
      To solve the indetermination of forces existing in a form-closed cam mechanism formed by conjugate cams, where the contact between the cams and the follower rollers is constantly ensured by only the geometry of the elements, ...

    • Metodologia del modelo de asignación en el estudio de trafico de Vigo 

      Codina Sancho, Esteve; Montero Mercadé, Lídia; Santos López, M. Antonia de los (LOPEZ PITA Y ROBUSTE ANTON EDITORES, 1998)
      Text en actes de congrés
      Accés obert
      El modelo de transporte privado desarrollado para la ciudad de Vigo persigue una mejora de las condiciones de circulación. El estudio desarrolla diversos tipos e alternativas. Un primer grupo de alternativas aborda ...

    • Integration of product conceptual design synthesis into a Computer-Aided Design system 

      Álvarez Cabrales, Alexis; Zayas Figueras, Enrique Ernesto; Pérez Rodríguez, Roberto; Simeón, Rolando; Riba Romeva, Carles; Cardona Foix, Salvador (2014-09-14)
      Article
      Accés restringit per política de l'editorial
      Commercial Computer-Aided Design systems have mainly focused to support the process of capturing and representing geometric shapes and incorporating technological information. In contrast, few utilities in these systems ...

    • Radius of curvature and sliding velocity in constant-breadth cam mechanisms 

      Cardona Foix, Salvador; Zayas Figueras, Enrique Ernesto; Jordi Nebot, Lluïsa (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      In constant-breadth cam mechanisms closure of the higher kinematic pairs formed by the bilateral cam-follower contact is guaranteed by the geometry of both cam and follower. A study of the cam profile by means of its radius ...