Ansys EMA3D Charge/Cable: Electromagnetic Interference, Radiation Ionization Effects in Spacecraft, Electrostatic Discharge, Plasma Enhanced Chemical Vapor Deposition (PE-CVD)

The growth in electrification of consumer, industrial and military/aerospace products & systems has led design teams to protect embedded electronics systems against hazards such as ESD (electrostatic discharge) and EMI (electromagnetic interference.) Product developers increasingly turn to simulation tools to capture potential electromagnetic risks earlier in the design process.

Unwanted internal and external coupling can prevent or inhibit testing certifications. EMA3D Cable’s capabilities start with: Shielding effectiveness analysis, High Intensity Radiated Fields (HIRF) and cable coupling, EMI crosstalk between cables, Current return network optimization, Cable signal integrity, Lightning and EMP coupling to equipment interfaces

Ansys EMA3D Charge analyzes charging and discharging phenomena. It uses time domain solvers to simulate electric arcing in air, surface and internal charging, particle transport and dielectric breakdown. It helps you assess and manage risks associated with excessive charge build-up in your system, which can result in material degradation, arcing and electromagnetic interference (EMI) in harsh radiation environments or high voltage systems.

Ansys EMA3D Charge Electrostatic Discharge Spacecraft Design Plasma
  • Performs accurate charging analysis to determine when, where and how an electric arc problem is created, as the undesirable EMI effects and material degradation are very difficult to anticipate.
  • Predicts charge accumulation on satellites and space platforms – a complex task that requires adept knowledge of plasma and material physics.
  • Prevents catastrophic failure of satellites due to discharge events, which must be tackled in the design phase of the project, as testing in space is nearly impossible.
  • Manages the consequences of electrostatic discharges in air and solid dielectrics, which historically requires numerous and complex simulation tools, with steep learning curves.
  • Air breakdown in high-voltage systems takes advantage of a finite-element time difference method and a nonlinear air chemistry module to model arcing at various air densities and humidities.
  • Surface Charging in low and high energy plasma environments, as well as through triboelectrification, is possible using highly optimized charge balance equation solvers.
  • Internal charging  of solid materials from high-energy particle fluxes leverages the coupling of a 3D particle transport source and a full-wave electromagnetic finite element method (FEM).
  • Coupled charging simulations take advantage of the charge balance equations solvers, the FEM and the 3D particle transport tool to self-consistently solve the 3D electric fields generated from a surface charging problem.
  • Dielectric breakdown in solid dielectric materials is simulated once the local fields exceed the dielectric strength of a given material, using the coupling of the FEM with the 3D particle source and a stochastic tree model.
Ansys EMA3D Charge Electrostatic Discharge Spacecraft Design Plasma2
Ansys EMA3D Charge Discharge Plasma

Predict Charged Plasma Behaviors With EMA3D Charge and its Particle-in-Cell Solver

Charged particles and their non-linear discharge characteristics have been especially difficult to model and simulate accurately. Ansys EMA3D Charge provides the capabilities needed to simulate and predict charged plasma behaviors with particle-in-cell (PIC) solver technology. By engaging simulation with the parallelized PIC solver of EMA3D Charge, you can visualize, predict, and monitor plasma behavior accurately and speedily. Not only can you save significantly on the time and cost of current projects, but you can better prepare and design future products through virtual prototyping, predictive accuracy, and EM modeling. You can also model collisions between particles of the same species or between different species.

Additionally, the PIC solver is fully coupled to a full-wave finite element method (FEM) solver for electrodynamics, which enables particles to interact with EM fields and conversely for EM fields to get updated based on the dynamic plasma distribution. PIC and FEM solvers can be coupled to the boundary element method (BEM). This capability allows for macroparticles from the PIC solver to be absorbed by the material and for the BEM solver to update surface charges and potentials. The potentials from the BEM are then used as boundary conditions for the FEM so that EM fields can be updated accordingly.


Ionizing Radiation From The Sun Will Damage Our Spacecraft?

PIC solver technology has it covered with modeling capabilities for EMI and radiation ionization effects.Spacecraft surface charging is modeled using the BEM approach, which uses analytical descriptions of plasma interactions with the material surface. For example, a spacecraft moving through plasma plays a significant role in differential charging between the front and the back of the spacecraft. A plasma wake, which is a low-density region behind the spacecraft, needs to be modeled for debris-capture applications or docking routines and this wake can only be modeled accurately in 3D. In addition, plasma sheaths form close to surfaces at the time of equilibrium. Plasma sheaths are boundary regions that shield the electric fields and consequentially alter the charging at the surface.

These phenomenological effects are consequences of plasma interactions with ambient fields and are merely approximated in a BEM method, which has limits in its ability to calculate electric fields in relatively low-energy, dense plasmas found in low Earth orbit (LEO) or interplanetary orbits.




Ansys EMA3D Charge Ionizing Radiation Spacecraft Design Plasma
Ansys EMA3D CFD PIC Fluent Charge Design Plasma2

Ansys EMA3D Charge coupling with other solvers

By engaging PIC solver technology, you experience deep integration at the physics level (coupling EMA3D Charge with Fluent or Chemkin-Pro) and the user interface and workflow level (integrating the software into STK).

EMA3D Charge can also be integrated with Ansys Rocky particle dynamics simulation software or Ansys EMA3D Cable to explore further physics-based simulation. Similarly, to visualize your project in realistic settings as you can in STK, you can employ EMA3D Charge in conjunction with Ansys Discovery 3D simulation software or the Ansys ModelCenter model-based systems engineering (MBSE) platform.

Ansys EMA3D Cable

Ansys EMA3D Cable is a 3D Finite-Difference Time-Domain (FDTD) solver with an integrated multi-conductor transmission line solver. The two electromagnetic solvers co-simulate to allow for a complex cable harness to be accurately modeled inside complex geometry, such as an electronic device, a piece of machinery, an automobile or an aircraft.

Ansys EMA3D Cable is well-suited for simulations addressing electromagnetic compatibility (EMC), High Intensity Radiated Fields (HIRF), and lightning requirements early in the program before physical prototypes are complete. Users can specify realistic system signals as a source on cables or shields. The source may also be at the platform or environment level.

Using Ansys EMA3D Cable, enable us to analyse:

  • Radiated coupling to cables
  • Radiated emissions from cables
  • Coupling through shields
  • EMI cross-talk between cables
  • Current return network optimization
  • Coupling from static discharges
  • Cable signal integrity
  • Lightning coupling to equipment interfaces
  • HIRF fields and cable coupling
  • Thin material algorithm with Magnetic Materials
  • Frequency-dependent material properties
  • FDTD sub-grid modeling
  • FDTD with solid bodies

Ansys EMA3D Cable’s FDTD approach is the only EM tool capable of capturing the detail of highly complex platforms such as entire aerospace, automotive, ship or energy systems down to individual electronics interfaces in a computationally accessible manner.

Ansys EMA3D Cable
Ansys EMA3D Cable

Noise, Vibration & Harshness – NVH for Electric Motors

To optimize for NVH, our engineers use the forces from the EM analysis to perform advanced vibro-acoustic simulations. The forces are mapped to evaluate the structural dynamics response of the motor. Modal and harmonic stress coupling responses are important for simulating the NVH of an electric motor and for proper vibro-acoustic design of electric vehicles (EVs). The harmonic analyses generate absolute magnitudes of vibrations and waterfall diagrams to get a complete picture of the motor’s acoustic profile.

Electrical Motor Design

Electromagnetic Finite Element Based Design & Analysis
Our Coupled Electromagnetics, FEA and CFD based multiphysics simulation design provides detailed information about Electrical Motor such as induced voltage, load torque, cogging torque, inductance, flux linkage, iron losses, coil losses, magnet loss, permeance, parameter sensitivity, equivalent circuit model extraction, heat generation, temperature distribution, eccentricity, stress, vibrations, radiated sound, magnetization, demagnetization, and skew effects for different type of motors: Brushless Permanent Magnet machine (BLPM), Induction (or Asynchronous) machine (IM), Wound Synchronous machine (SM), Switched Reluctance machine (SRM), Synchronous Reluctance machine, Permanent Magnet External Rotor.

Power Transformer: Finite Element Based Design

FEA (Finite Element) based Design and simulation enables us to visualization of the phenomena and ease in moving forward with analyzing causes. It also makes possible quantitative evaluations of magnetic saturation, eddy current, induced voltage, stray loss, iron loss, magnetostrictive force, power, efficiency, temperature and the electric fields noise where measurement is difficult.

Electric Motors Cooling

Coupled Electromagnetic Solver with Finite Element & CFD Based Multiphysics simulation
Our FEA and CFD based multiphysics simulation design provides electronics cooling simulation products for chip, package and board thermal analysis as well as thermo-mechanical stress analysis. Multiphysics simulation tools help our customers to enhance reliability of the entire electronic system by managing excessive heat that can otherwise lead to increasing leakage and electromigration failure. Electric motors cooling becomes critical as we want to move to higher power, high-efficiency equipment.

Ansys HFSS: Multipurpose High Frequency Electromagnetic Field Simulator

RF, Microwave, Advanced Driver Assistance Systems (ADAS), Multipaction, and Electromagnetic Interference and Compatibility (EMI/EMC)
Ansys HFSS is a 3D electromagnetic (EM) simulation software for designing and simulating high-frequency electronic products such as antennas, antenna arrays, RF or microwave components, high-speed interconnects, filters, connectors, IC packages and printed circuit boards. Engineers worldwide use Ansys HFSS software to design high-frequency, high-speed electronics found in communications systems, advanced driver assistance systems (ADAS), satellites, and internet-of-things (IoT) products.

Ansys Maxwell: Low-Frequency Electromagnetic Simulation for Electric Machines

Ansys Maxwell is an electromagnetic field solver for electric machines, transformers, wireless charging, permanent magnet latches, actuators, and other electromechanical devices. It solves static, frequency-domain and time-varying magnetic and electric fields. Maxwell also offers specialized design interfaces for electric machines and power converters. It includes 3-D/2-D magnetic transient, AC electromagnetic, magnetostatic, electrostatic, DC conduction and electric transient solvers.

Battery Thermal Management: Simulation Based Design

Safe, efficient, and cost-effective designs of Electric Vehicles (EVs) batteries become more important. Lithium-ion batteries are the mainstream battery solution for today’s EVs but are sensitive to their operational thermal conditions. Therefore, thermal simulation of these battery packs is paramount in the designing phase, which includes consideration of heat production by battery electro-chemistry, internal resistivity and cooling, EV cooling system, etc.

Simulation of Plasma Based Devices: Microwave Plasma & RF Plasma with Coupling Particle in Cell (PIC), MHD, CFD and FEA Solvers

We provide consulting services for the modeling and simulation of plasma and other flow systems. we combine expertise in physics, Numerical computing, big data processing, automation, and management. Our people are truly motivated experts, passionate about science. Our consulting services utilize our specialized domain expertise in plasma, reactive flows and surface chemistry mechanism development and integration with multi-dimensional flow and plasma systems.

NVH & Acoustics for Hybrid & Electric Vehicles

In NVH Engineering and simulation of Hybrid/Electric Vehicles, the noise from tire, wind or auxiliaries, which consequently become increasingly audible due to the removal of the broadband engine masking sound, should be studied. New noise sources like tonal sounds emerge from the electro-mechanical drive systems and often have, despite their low overall noise levels, a high annoyance rating. Engine/exhaust sounds are often used to contribute to the “character” of the vehicle leads to an open question how to realize an appealing brand sound with EV.

eVTOL (Electric Vertical Take-Off and Landing) & UAM (Urban Air Mobility)

FEA & CFD Based Simulation for Airworthiness Certification, Aerodynamics, Aeroacoustics and Crashworthiness
The VTOL, eVTOL and UAM market is constantly changing and evolving, so maintaining a competitive edge both within the industry and supporting mission effectiveness requires significant research and development activities. Enteknograte offers the industry’s most complete simulation solution for Urban Air Mobility (UAM) and Vertical Take off and Landing (VTOL) aircrafts.

Finite Element Analysis of Durability and Fatigue Life

Vibration Fatigue, Creep, Welded Structures Fatigue, Elastomer and Composite Fatigue with Ansys Ncode, Simulia FE-Safe, MSC CAEFatigue, FEMFAT
Durability often dominates development agendas, and empirical evaluation is by its nature time-consuming and costly. Simulation provides a strategic approach to managing risk and cost by enabling design concepts or design changes to be studied before investment in physical evaluation. The industry-leading fatigue Simulation technology such as Simulia FE-SAFE, Ansys Ncode Design Life and FEMFAT used to calculate fatigue life of multiaxial, welds, short-fibre composite, vibration, crack growth, thermo-mechanical fatigue.

Acoustics and Vibration: FEA and CFD for AeroAcoustics, VibroAcoustics and NVH Analysis

Noise and vibration analysis is becoming increasingly important in virtually every industry. The need to reduce noise and vibration can arise because of government legislation, new lightweight constructions, use of lower cost materials, fatigue failure or increased competitive pressure. With deep knowledge in FEA, CFD and Acoustic simulation, advanced Acoustic solvers and numerical methods used by Enteknograte engineers to solve acoustics, vibro-acoustics, and aero-acoustics problems in automotive manufacturers and suppliers, aerospace companies, shipbuilding industries and consumer product manufacturers.

Integrated Artificial Intelligence (AI) & Machine Learning - Deep Learning with CFD & FEA Simulation

Machine learning is a method of data analysis that automates analytical model building. It is a branch of Artificial Intelligence based on the idea that systems can learn from data, identify patterns and make decisions with minimal human intervention. With Artificial Intelligence (AI) applications in CAE, that is Mechanical Engineering and FEA and CFD Simulations as design tools, our CAE engineers evaluate the possible changes (and limits) coming from Machine learning, whether Deep Learning (DL), or Support vector machine (SVM) or even Genetic algorithms to specify definitive influence in some optimization problems and the solution of complex systems.

Heat Transfer and Thermal Analysis

Fluid-Structure Interaction with Coupled CFD and Finite Element Based Simulation
We analyze system-level thermal management of vehicle component, including underhood, underbody and brake systems, and design for heat shields, electronics cooling, HVAC, hybrid systems and human thermal comfort. Our Finite Element (LS-Dyna, Ansys, Abaqus) and CFD simulation (Siemens Start-ccm+, Ansys Fluent , Ansys CFX and OpenFoam) for heat transfer analysis, thermal management, and virtual test process can save time and money in the design and development process, while also improving the thermal comfort and overall quality of the final product.


We pride ourselves on empowering each client to overcome the challenges of their most demanding projects.

Enteknograte Finite Element Electromagnetic Field simulation solution which uses the highly accurate finite element solvers and methods such as Ansys Maxwell, Simulia CST & Opera, JMAG, Cedrat FLUX, Siemens MAGNET and COMSOL to solve static, frequency-domain, time-varying electromagnetic and electric fields includes a wide range of solution types for a complete design flow for your electromagnetic and electromechanical devices in different industries.