Browsing by Author "Zhang, Ming"
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DEM modelling of dynamic penetration in granular material
Zhang, Ming; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Ciantia, Matteo Oryem (CRC Press, 2018)
Conference lecture
Restricted access - publisher's policyDynamic penetration has been widely employed in some site investigation procedures and for the installation of driven piles. A 3-dimensional discrete element method model has been developed to simulate dynamic rod penetration ... -
Failure investigation of a Kaplan turbine blade
Zhang, Ming; Valentín Ruiz, David; Valero Ferrando, Ma. del Carmen; Egusquiza Montagut, Mònica; Egusquiza Estévez, Eduard (Elsevier, 2019-03-01)
Article
Restricted access - publisher's policyIn this paper, an uncommon failure of a Kaplan turbine blade has been analyzed. After the monitoring system detected a sudden increase in vibration levels, the turbine was inspected. The inspection showed that a large crack ... -
Numerical study on the dynamic behavior of a francis turbine runner model with a crack
Zhang, Ming; Valentín Ruiz, David; Valero Ferrando, Ma. del Carmen; Egusquiza Montagut, Mònica; Zhao, Weiqiang (2018-01-01)
Article
Open AccessCrack appearance in the blade is the most common type of fatigue damage in Francis turbines. However, it is sometimes difficult to detect cracks in time using the current monitoring system, even when they are very large. ... -
On the changes in dynamic behavior produced by the hydraulic turbine runner damage
Zhang, Ming (Universitat Politècnica de Catalunya, 2019-07-17)
Doctoral thesis
Open AccessHydropower plays a very important role in the world electricity generation nowadays. Hydropower is one type of renewable energy and is the only renewable energy source that can provide a wide range of power regulation with ...