Corona ring

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Publications associées (29)

Adhesion of thermoplastic polyurethane elastomer to galvanized steel

Véronique Michaud, Basile Golaz

When a thermoplastic polyurethane elastomer (TPU) is co-molded with galvanized steel, the subsequent adhesion and its durability are very sensitive to the chemical bonds created at the interface. Silane coupling primers are known for enhancing adhesion bet ...

Elsevier2011

Corona Discharge in Microwave Devices: A Comparison of Ionization Rate Models

Michael Mattes, Francisco Edén Sorolla Rosario

In this paper we compare the predicted Corona breakdown power threshold obtained by different ionization rate models for an infinite parallel-plate waveguide. We point out the lack of a unanimous model of the ionization rate for RF fields and study the dif ...

2010

Adhesion of thermoplastic polyurethane elastomer onto galvanized steel

Véronique Michaud, Basile Golaz

When a thermoplastic polyurethane elastomer (TPU) is applied onto galvanized steel by a hot melt process, the subsequent adhesion and its durability are very sensitive to the chemical bonds created at the interface. The effects of several surface treatment ...

2010

Stress and failure analysis of crimped metal-composite joints used in electrical insulators subjected to bending

John Botsis, Thomas Gmür, Alain Michel Prenleloup

Experimental and numerical investigations are carried out on metal/fibregiass-reinforced-plastic joints integrated in electrical insulators subject to bending. Numerical stress and strain distributions through the bond are calculated with a solid 3D finite ...

2009

On the Relationship Between the Signature of Close Electric Field and the Equivalent Corona Current in Lightning Return Stroke Models

Farhad Rachidi-Haeri, Carlo Alberto Nucci

Engineering return stroke models can be categorized either as current generation (traveling current source type) models or current propagation (transmission line type) models. The current generation models are described among other parameters by a corona c ...

Institute of Electrical and Electronics Engineers2008

Interaction between a surface dielectric barrier discharge and transonic airflows

Samantha Pavon

The use of plasmas in aerodynamics has become a recent topic of interest. The potentialities of different types of plasmas are being investigated for low velocity and high velocity flow control, as well as for plasma-assisted combustion. Dielectric barrier ...

EPFL2008

Experimental Study and Numerical Simulation of the Flindt Draft Tube Rotating Vortex

François Avellan, Monica Iliescu

The dynamics of the rotating vortex taking place in the discharge ring of a Francis turbine for partial flow rate operating conditions and cavitation free conditions is studied by carrying out both experimental flow survey and numerical simulations. 2D las ...

2007

Prediction of RF breakdown in microwave structures for satellite applications with FEST3D

Juan Ramon Mosig, Michael Mattes

In this paper, a software tool for the prediction of the corona discharge and the multipactor thresholds in passive components based on rectangular geometry for space applications is presented.The software tool has been compare to measurements showing a ve ...

2006

Contribution to the RF Breakdown in Microwave Devices and its Prediction

Juan Ramon Mosig, Michael Mattes

In this paper, the RF Breakdown power threshold in arbitrary complex components based on rectangular waveguide technology is investigated. In particular, multipactor (in vacuum) and corona discharge (close to the Paschen curve minimum) are analyzed. The ob ...

2006

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