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Surface Discharges

Using EMA3D® to Calculate Surface to Surface Discharge Transients When a space vehicle undergoes surface charging in a space plasma environment, there is the potential for discharges and arcing to occur.  These discharges may cause damage to surfaces or may couple electromagnetic energy to antennas and cables.  In this blog entry we discuss how to […]

OCT Method

Oversized Cavity Theory for RE/RS Assessment up to 40GHz The Oversized Cavity Theory (OCT) is a numerical technique for aerospace systems including aircraft and communication satellites radiated emissions and susceptibility (RE/RS) assessment. The method is based on a power-balance approach, i.e. on the premise that, with statistical fields present in an electrically large cavity, the […]

Surface Charging

Surface Charging Simulations of an Orion-like Spacecraft in a Geo Space Plasma Abstract: Surface charging in a space plasma environment is a critical safety issue for many space vehicles. This is particularly true for vehicles that spend time in geosynchronous altitudes. We present results on surface charging for an Orion-like spacecraft in a geosynchronous plasma […]

Plasma Discharge

Topic: Space Plasma Discharge Transients from EMA3D® Presenter: Bryon Neufeld Abstract: We demonstrate EMA3D’s ability to predict discharge transients from surface charging in a space plasma.  In our analysis, we obtain surface charging results in a space plasma environment and then evaluate discharge transients to cables and antennas.  We consider spacecraft-to-plasma, surface-to-surface, and spacecraft-to-spacecraft (rendezvous) […]

Mesh Sensitivity

Finite Element Mesh Variation as Quality Assurance in Space Charging EMA3D® has tools which, when used in combination with Nascap-2K, provide the user a comprehensive and sophisticated space charging analysis framework.  One of the key capabilities that EMA3D provides is the ability to control the finite element mesh which serves as the basis for a […]

Charging Webinar

Topic: Advanced CAE Tools for Spacecraft Charging Analysis with NASCAP-2K Presenter: Bryon Neufeld Abstract: EMA3D® includes advanced CAE tools for spacecraft charging analysis with NASCAP-2K. These tools allow the user to import native CAD (in almost any format) directly into the EMA3D platform to serve as the basis for their surface charging simulation, ensuring a […]

Spacecraft Charging

Spacecraft Charging EMA3D® includes advanced CAE tools to extend NASCAP-2K and provide spacecraft charging analysis for plasma interaction and EMC characterization in space. Many US companies rely on NASCAP-2K, but find the CAD and CAE tools, such as meshes, to be cumbersome and underdeveloped. EMA3D gives the ability to simplify, modify, and defeature geometry to […]

Railroad Protection

EMA recently published a paper at the AREMA Railway Exchange conference in Minneapolis, MN entitled: “SYSTEM LEVEL FULL SCALE LIGHTNING TESTING OF PTC WAYSIDE C&S SYSTEMS.” A summary of the paper follows: Positive Train Control requires a high degree of reliability and availability. In order to meet these requirements, CSX needed to ensure the lightning […]

EMA Webinar

Topic: Validation of Computational Electromagnetic Simulations to Support Aircraft Certification Projects for Direct and Indirect Effects of Lightning Presenter: Cody Weber Abstract: Computation Electromagnetic (CEM) simulations play an ever increasing role in the analysis and support for aircraft certification projects. CEM can be used to evaluate electromagnetic environmental effects as well as EMC/EMI system problems for […]

EMA at ICOLSE

Come see our talks at ICOLSE 2015 in Toulouse, France!  All three talks will be presented on September 9th. See below for details. Lightning Direct Effects on Anisotropic Materials from Electro-Thermal Simulation will be presented by Bryon Neufeld on Sept. 9 at 15:20 in the Cassiopée presentation room. Here’s the abstract: Mitigating lightning Direct Effects […]

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