Electrostatics
All Articles
This article is concerned with the features required for a 3D electrostatic computation, using CST EM STUDIO® (CST EMS) of a power engineering application for which a medium voltage SF6 main ring unit load break switch manufactured by ABB Distribution, Skien, Norway [1] has been taken.
A CAD model of the equipment was provided with the permission and courtesy of ABB, Bad Dättwil, Switzerland.
Electrostatic simulations are used to indicate the locations of critical spots where discharges may occur. For such an analysis, workflow and accuracy are essential requirements.
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EADS, Innovation Works in the UK uses CST EM STUDIO® to aid in the simulation of aircraft fuel systems.
EADS has developed an internal code for modelling the filling of an aircraft fuel tank. The code simulates this scenario and outputs the electric field, charge density and potential at various points in the tank and fuel over the filling period.
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This article is concerned with the 3D electromagnetic modelling and equivalent circuit parameter extraction of a Resistance Spot Welding (RSW) gun. The parameters for the gun are not as easily established for the gun as for other RSW system components. The current transformer and electronic converter electrical parameters are either known or can be obtained by standard test procedures. This is not the case for the gun where the electrical parameters are unknown and difficult to measure. A 3D EM simulation using CST EM STUDIO® can be used to establish these parameters and complete the system characterisation.
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Electromagnetic simulation using CST EMS is now established at the heart of these significant improvements to the development and manufacturing processes. The software is extremely reliable, robust and efficient. The CST EMS development team reacts swiftly to our needs and feature requests and is always receptive to new ideas and
suggestions. As a consequence, we believe that product support, in addition to the software‘s powerful features, has contributed to the success of EM simulation at Sirona
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This article describes the hot and cold test analysis of a traveling wave tube. Such a simulation uses a broad spectrum of the solvers available in CST STUDIO SUITE™. The complete simulation procedure is shown. First the electron gun is analyzed. Then the dispersion characteristics of the slow wave structure are evaluated. Finally the particle in cell (PIC) simulation of the beam inside the vacuum tube is performed.
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A multi-stage depressed collector for the "Rijnhuizen" Fusion Free-Electron Maser (FEM) is simulated with CST PARTICLE STUDIO™. The results are reproduced with permission of Pulsar Physics. See also M.J. de Loos, S.B. van der Geer, Pulsar Physics, Nucl. Instr. and Meth. in Phys. Res. B, Vol 139, 1997.
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„CST EMS ist mittlerweile bei Siemens ein fester Bestandteil des Entwicklungsprozesses verschiedenster
Leistungstransformatorkomponenten geworden, insbesondere wegen
der einfachen Bedienungsoberfläche und der Vielfalt der Löser. Dank der sehr engen Zusammenarbeit mit dem CST EMS Entwicklungsteam
wurden Wünsche, Anregungen und Ideen immer offen aufgegriffen
und zügig umgesetzt. Dies bildet die Basis für unsere Entscheidung auch
weiterhin verstärkt die von CST angebotenen Lösungen anzuwenden.“
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The simulation of a gas insulated switch at 50 Hz is simulated with the low frequency solver in CST EM STUDIO™ (CST EMS). A Pro/E® model is imported, appropriate three-phased sources defined and a simulation performed to obtain the current distributions in the three phase conductors.
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Electron guns are the starting point of every charged particle application. There the DC energy is translated into an extracted beam which later on interacts with all kinds of RF structures. The design and analysis of an electron gun can be performed with the tracking code of CST PARTICLE STUDIO® as shown in this article.
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“CST software has definitely improved our knowledge about EM fields. With the newly obtained knowledge we can now better advise potential customers. We believe that this puts us ahead of our competitors. The CST software definitely met our expectations. The intuitively usable software is working efficiently and is stable.”
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This article demonstrates the application of the CST EM STUDIO™ (CST EMS) electroquasistatic (EQS) solver to the simulation of a high voltage insulator. It also demonstrates the difference between the results obtained from the EQS Solver and Electro-Static Solver.
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CST EM STUDIO™'s Electrostatic Solver can be used to establish electric breakdown fields in X-Ray devices. A STEP model of the device was imported via CST EMS's comprehensive CAD Interface.
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This example shows the simulation of a high voltage transformer bushing using CST EM STUDIO™'s Electrostatic solver.
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The pierce type gun example demonstrates the analysis of an electrically large gun configuration using CST PARTICLE STUDIO™
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The article describes the simulation of a MEMS comb sensor using CST EM STUDIO™. First different shapes of the combs are discussed. Using CST EMS's efficient mesh scheme, the full structure was also simulated.
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