Topic: Galileo-EME: Advanced Platform for RCS and IR Simulation
When: Thursday, October 19, 2017 9:00 am
Mountain Daylight Time (Denver, GMT-06:00)
To register for this Webinar: Click Here
The primary means of avoiding detection is to try and appear invisible by reducing the aircraft’s Radar (RCS) and Infrared (IR) signatures. This can be achieved by considering a ship’s or an aircraft’s RCS and IR signatures during the design process, by adjusting the aircraft’s geometry and by using materials that help to reduce these signatures
Radar and Infrared Signatures Galileo-EME is specifically designed to provide an integrated environment for signature management of aeronautical and naval platforms, both at the component and system levels. It is a modular framework which can offer both RCS and IR signature prediction and management allowing aircraft manufacturers to start optimizing an aircraft’s design at the earliest stages.
Based on Extensive Experience
Galileo-EME includes a suite of advanced modeling and prediction tools which have beenextensively validated through IDS’s 25 years of experience providing radar and infrared signature simulation and measurement services. Feedback from IDS’s engineers is also used to continuously update and improve the tools and working procedures with the aim of reducing the time and cost for an optimized aeronautical or naval design solution.
- Galileo-EME provides a full framework for the management of complex designs, thanks to the project/version data organization, streamlined workflows, input, output, settings and results history tracking and the ability for multiple users to work on the same project.
- RCS full-wave methods for very accurate results and detailed analyses: Method of Moments (MoM), MultiLevel Fast Multipole Method (MLFMM), Synthetic Functions Expansion (SFX), Finite Difference Time Domain (FDTD)
- RCS asymptotic methods for fast loop analyses: Physical Optics (PO), Physical Theory of Diffraction (PTD), Incremental Theory of Diffraction (ITD) and Shooting and Bouncing Rays (SBR)
- Monostatic and Bistatic RCS
- Synthetic Aperture Radar (SAR) / Inverse Synthetic Aperture Radar (ISAR) images / hourglass plot
- Conventional (conductors, dielectrics) and nonconventional (frequency depending, plasma, multilayer, …) RCS materials
- Multipath and atmospheric propagation factor for RCS analysis
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- Click Register Here
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Rome, Italy and Plano, Texas, September 26, 2017
Siemens and IDS Partner to Provide High-Frequency Electromagnetic Engineering Solutions in Simcenter
- Strengthens the Simcenter portfolio with high-frequency electromagnetic simulation capabilities
- Addresses new engineering challenges in the context of autonomous driving and the Internet of Things
Siemens has entered into a strategic partnership with Ingegneria Dei Sistemi (IDS), an independent engineering and systems technologies company based in Italy, to provide high-frequency electromagnetic (EM) engineering solutions to the market. As such, the Simcenter™ portfolio will have a more complete offering, with the additional ability to engineer the electromagnetic performance of systems with regard to antenna design and installation, EM Compatibility (EMC), EM Interference (EMI), EM hazards and more. This strategic partnership fits into Siemens’ goal to address the engineering needs of smart systems with convergence of product lifecycle management (PLM) and electronic design automation (EDA) software. By further complementing solutions from Mentor, the partnership reinforces Siemens’ offerings in autonomous driving (AD) and the Internet of Things (IoT).
“Partnering with Siemens creates tremendous leverage on our 40 years of EM expertise, having successfully solved the toughest EM problems in highly demanding industries like naval, space and aviation,” said Mauro Bandinelli, head of the Electromagnetic Engineering Division at IDS. “We look forward to extending our key areas of focus, including providing best-in-class EM simulation software, physical testing competencies and practical EM engineering & design. Through this collaboration, IDS’s state-of-art EM technologies will be accessible to our joint customers across all industries on the Simcenter platform.”
The performance of electronic devices and smart systems depends largely on electromagnetic behavior. With the increasing integration of electronics into everyday products and increased connection to IoT, engineers need a fast, accurate representation of how products will perform in real-life situations to ensure design success. This large increase of electronics, specifically wireless devices, creates a likelihood of EM interference and potential system malfunctions, but also allows the opportunity for new product functionalities if properly managed in the design stage. Simulating potential interferences long before a product is made can help prevent loss in product quality and customer satisfaction. This extends to industrial applications where IoT is used in industrial plants and process industries, and it is mission-critical that EM sensors and their product integration are engineered with the highest fidelity and robustness.
In automotive, autonomous driving presents a higher stakes circumstance where reliability and safety require high-quality EM sensor behavior for obstacle detection and collision avoidance, both long and short range, but also V2X. IDS solutions provide realistic predictive engineering, on scalable virtual models ranging from individual sensors through full systems integrated into virtual cars. By integrating such highly physical EM radar and communication systems simulations into driving scenarios, car manufacturers will be able to increase the safety and performance of autonomous vehicles.
“The partnership with IDS provides exciting opportunities for our customers in the area of electromagnetic simulation,” says Jan Leuridan, senior vice-president of Simulation and Test Solutions, Siemens PLM Software. “IDS’s electromagnetics solution, soon leveraged by the power of Simcenter 3D, our unified, unique environment for 3D CAE, will provide engineers unmatched technologies to optimize their designs more quickly and will truly benefit product development cycles.”
For further information on Simcenter and our simulation solutions, please see https://www.plm.automation.siemens.com/en/products/simcenter/index.shtml.
Siemens PLM Software, a business unit of the Siemens Digital Factory Division, is a leading global provider of software solutions to drive the digital transformation of industry, creating new opportunities for manufacturers to realize innovation. With headquarters in Plano, Texas, and over 140,000 customers worldwide, Siemens PLM Software works with companies of all sizes to transform the way ideas come to life, the way products are realized, and the way products and assets in operation are used and understood. For more information on Siemens PLM Software products and services, visit www.siemens.com/plm.
Siemens AG (Berlin and Munich)is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world’s largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2016, which ended on September 30, 2016, Siemens generated revenue of €79.6 billion and net income of €5.6 billion. At the end of September 2016, the company had around 351,000 employees worldwide. Further information is available on the Internet at www.siemens.com.
Note: Siemens and the Siemens logo are trademarks or registered trademarks of Siemens AG. Simcenter is a trademark or registered trademark of LMS International N.V. or any of its affiliates. All other trademarks, registered trademarks or service marks belong to their respective holders.
Antenna Modeling with Limited Information
Installation of large arrays on complex platforms can lead to several issues including:
- Pattern distortion by the platform
- RE/RS interference with other units
- Inter-antenna coupling and assessing if passive intermodulation is needed
The typical design flow for an integrator is to import or draw the antenna geometry, specify the port excitation, and then install the antenna on the platform geometry. Unfortunately, the antenna platform modeling tasks must be completed early in the design cycle. Often, only limited antenna information is available due to proprietary restrictions or due to the fact that it is still under development.
To overcome these challenges, Galileo EMT includes antenna synthesis techniques with varying levels of complexity. During initial program phases, an equivalent antenna is synthesized using only the design specifications, such as beamwidth and sidelobe levels. As the program proceeds and more details of the antenna specifications are known, the platform antenna model can be updated. Galileo EMT allows for reverse sourcing based on desired far-field patterns. Further, the software synthesizes aperture and patch antennas efficiently. Finally, when the actual antenna design is known, it can be installed on the platform either by simulating the geometry directly or through equivalent currents in standard data formats.
A key tasks in this phase is wise model generation. Galileo EMT includes the ability to generate consistency checks to compare to the expected performance in the far field.
High-Performance Solvers and Methods
Galileo EMT includes an array of advanced solvers capable of performing complex calculations on reasonable hardware. Techniques such as the Method of Moments with MLFMA and Iterative Physical Optics solutions provide accurate and extensively validated approaches to RF simulation. These methods are complemented by a collection of asymptotic methods as well as an unique oversize cavity theory module that allows for simulation of cavity coupling up to 40 GHz.
EMA & IDS would like to invite you to our reception at The 2017 Symposium on EMC+SIPI on Monday August, 7th 2017.
Come join us for drinks, appetizers, and network with other Symposium attendees starting at 6:00pm! The reception party will take place in the Hospitality Suite at the Gaylord National Resort and Event Center.
We invite you attend this event and interact with EMA and IDS in the following ways:
- Come by the EMA/IDS booth at the exhibition, we will have PC stations available to demo our software.
- Set up an individual meeting with EMA/IDS to learn about how we can help you with advanced simulation techniques. Please email email@example.com to coordinate a time.
- Join us at the EMA/IDS reception for appetizers, technical discussion, and socializing on Monday August 7th at the conference hotel. Email firstname.lastname@example.org for questions and to RSVP.
- Visit one of EMA’s various Presentations, Demos and Workshops. See below for more details
Tuesday August 8th, Hardware Experiments and Software Demonstration:
2:00 PM – 4:00 PM: Comprehensive Space Plasma EMC Analysis Using a Single Model
Bryon Neufeld, EMA, Denver, CO USA
Space plasmas present many risks to space vehicles, ranging from antenna pattern distortion to surface charging to box level transient coupling. The modern use of ceramics and other insulating materials in space vehicle platforms makes numerical EMC analysis an important part of the design process. The ability to perform a wide array of numerical analyses from a single geometric model provides great efficiency and flexibility for a space program. Different materials and other design variations can be incorporated into the model to obtain a comprehensive view of the impact of these modifications on overall vehicle EMC risk.
This demonstration will present a quantitative assessment of EMC risks due to space plasma environments. Emphasis will be on using a single geometric model to perform a wide array of assessments, including:
- Surface Charging
- Internal Charging (coupon)
- Discharge Coupling to Cable
- Thruster Plume-induced Antenna Pattern Distortion
- Radiated Emissions/Radiated Susceptibility
Tuesday August 8th, Session TU-AM-6:
10:30 AM – 11:00 AM: Design Implications of the Time Dependence of Surface Charging in a Space Plasma Bryon Neufeld (Electro Magnetic Applications, Lakewood, CO, USA)
Friday August 11th, Session FR-PM-1:
4:00 PM – 4:30 PM: Lightning Protection for Space Vehicles Jennifer Kitaygorsky (Electro Magnetic Applications, Lakewood, CO, USA); Tim McDonald (Electro Magnetic Applications, Inc., Lakewood, CO, USA)
4:30 PM – 5:00 PM Practical Aspects of a Comprehensive Space Charging Analysis Bryon Neufeld (Electro Magnetic Applications, Lakewood, CO, USA); Timothy McDonald (Electro Magnetic Applications, Lakewood, CO, USA)
HIGH INTENSITY RADIATED FIELDS (HIRF) COURSE
Electromagnetic Effects Compliance for Aircraft
HIRF/Lightning Design, Test Methods, and Regulatory Compliance
September 26-29, 2017
8:00AM – 5:00PM (T, W, TR)
8:00AM – 12:00PM (F)
National Institute for Aviation Research
About the course:
This comprehensive workshop will provide an awareness of all aspects HIRF and Lightning systems and aircraft testing in regard to compliance to the existing rules. In addition, with recent revisions to guidance material and FAA policy towards Fuel Tanks (25.981) and PED tolerance, it is critical that anyone working in this field be up to date on the developments.
For any questions about the class, feel free to Contact EMA
- Background and Why HIRF is important?
- The FAA/European requirements to demonstrate compliance – FAA/EASA Harmonized HIRF and Lightning requirements
- Equipment Qualification
- Aircraft certification, modeling and testing (HIRF and IEL)
- Pitfalls and problems
- Design issues
- Discussion of 25.981 Rule Revision Status
- Using CEM Analysis to Support 25.981 Aircraft Certification Programs
- Discussion on PED tolerance Policy
With emphasis on practical measurement and design guidance, this workshop is particularly relevant to engineers and technicians involved in aircraft HIRF and Lightning Clearance. As part of the practical presentations, the class will be providing demonstrations concerning critical aspects of the HIRF/IEL testing.
Billy Martin (NIAR: EME Lab Director: Regarded as one of the technical experts on HIRF and Lightning in the United States), Dave Walen (FAA’s Chief Scientific and Technical Advisor for HIRF, EMC and Lightning), Jeff Phillips (NIAR: Senior Research Engineer), Dr. Vignesh Rajamani, Ph.D. (Senior Associate, Technology Development Practice), Tim McDonald (Ph.D. Chief Scientist at Electro Magnetic Applications, Inc.).
Webinar: Modeling Complex Cable Harnesses in EMA3D Simulations
Computation Electromagnetic (CEM) simulations play an ever increasing role in the analysis and support for aircraft and aerospace programs. CEM can be used to evaluate electromagnetic environmental effects as well as EMC/EMI system problems for design and certification support. This analysis not only can be used early in projects to investigate aircraft designs and assess the need for protections schemes but also to provide valuable results to aid in certification support. Both stages of simulation can provide significant program and cost benefits by evaluating a complete vehicle EM response, aiding test configurations or reducing the amount of required testing. In this webinar, a senior EM scientist will focus on the EMA3D approach to modeling complex cable harnesses in aircraft or aerospace platforms. Converting cable CAD and schematics in an entire aircraft to reasonable CEM model definitions can be a daunting task, but EMA3D has some updated cable modeling tools to improve development efficiency and cable parameter specification. The EMA3D cable modeling process will be reviewed along with some critical aspects of simulation required to achieve good correlations with experimental results.
DoD E3 Program Review 2017
EMA and IDS would like to invite you to join us at the Department of Defense Electromagnetic Environmental Effects Program Review (DoD E3 Program Review 2017). We will be consolidating the EMA and IDS partnership and showcasing our combined capabilities that that cover critical tasks in E3 analysis and spectrum management.
EMA and IDS are pioneers in providing simulation and software automation to improve the capabilities of E3 engineers and spectrum managers. Furthermore, our consulting services teams can provide support during critical periods with expert experience and advanced capabilities in test, analysis and program management.
Sponsored by the DISA’s Defense Spectrum Organization (DSO), the DoD E3 Program Review promotes communication, coordination, commonality, and synergy among the DoD Components for E3 related matters. The Program Review is an information exchange forum for DoD Components, the Federal Government, and Industry E3 and Spectrum Management professionals to collaborate, network, and meet to discuss policy and regulations, acquisition trends, operational supportability, and emerging technology.
We invite you attend this event and interact with EMA and IDS in the following ways:
- Come by the EMA/IDS booth at the exhibition
- Set up an individual meeting with EMA/IDS to learn about how we can help you with advanced simulation techniques. Please respond to this email to coordinate a time.
- Join us at the EMA/IDS reception for appetizers, technical discusion, and socializing on Wednesday, April 5 at the Iron Cactus, just steps from the conference hotel. Email email@example.com for questions and to RSVP.
Topic: EMA3D-Internal: A Comprehensive Platform for 3D Internal Space Charging
In this webinar, we present the newly developed fully 3D internal space charging software tool: EMA3D-Internal. Spacecraft charging is a well-known problem for space vehicles. Advanced evaluation of spacecraft charging threats to a particular mission can inform design and drastically reduce the risk for space programs. We present a new tool, EMA3D-Internal, for performing a thorough evaluation of spacecraft internal charging risks. The tool can be run entirely from the graphical user interface and allows geometry import and development from within CADfix, an advanced CAE platform. The user can specify an arbitrary and realistic radiation spectrum, such as what might be obtained using the AP9/AE9 framework. In the webinar, we will demonstrate applications of EMA3D-Internal for realistic mission environments, showing the steps involved in importing and preparing the model, running the simulation and analyzing results.
Webinar: Dealing with cables, cavities and platform antennas in a PRACTICAL way
Presented by: Dr. Tim McDonald
EMC and E3 engineers have real challenges in dealing with cables, cavities and platform antennas in real electronics equipment, aircraft and vehicles.
It is reasonably easy to solve for a perfect cable illuminated by a perfect plane wave, but what about a real cable in a real enclosure. What about cable branching? One never wants to overdesign for lightning because it adds mass. However, how do you accurately predict the levels? Many have tried computer simulation tools, but dealing with cables and enclosure cavities is such a headache! Further, simulating antenna effects typically requires more detail about the antenna than the EMC engineer even has access to!
EMA3D was created by EMC and E3 engineers for our everyday work. It can automatically simplify cables from the real CAD. You can simply put each pin at its real path by following the actual wiring diagram. EMA3D’s harness module includes a library of common cable parameters, such as transfer impedance and resistance, based on the wire gauge that is a result of real testing of Glenair and Alpha brand cable shields.
Our cavity tool from IDS can solve for the shielding of real cavities instantly by making assumptions about the seams and the losses. Further, our antenna tools from IDS can model antennas without having the full CAD of the antenna. You only need the gain patterns and related specifications, and the tool can generate a reasonable source.
EMA3D simulations of cables have been validated against testing for over 30 years. It has been part of the direct FAA certification basis since 1993 (The MD-90) and as recently as this year. There have been two transport category aircraft that received a type certificate from their airworthiness authority based on EMA3D simulations in the past two years. Our cavity tool and antenna tools from IDS has a similarly strong validation heritage.
In this webinar, we will discuss tools from EMA and IDS to deal with cables, cavities and platform antennas in a PRACTICAL way, with simplifications that are accurate but save you time and headaches.
If you are having trouble viewing the presentation, the slides can be downloaded: HERE
If you are having trouble viewing the video of the webinar, you can download the video: HERE
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 estimate the coupling of energy to an antenna during a surface to surface discharge using EMA3D.
The basic setup is shown in the Figure. There is a conductive surface (in cyan) with a smaller dielectric surface (in magenta) under which is an antenna.
The geometry setup shown here is very simple but is fine for estimating the fields seen by the antenna. EMA3D is built on the CADfix CAE platform which supports complicated geometry import and development for the interested user. In our model, there are nine discharge channels shown in the inset. These will serve as the path for the surface to surface current discharge.
To constrain the discharge waveform the user must first perform a surface charging analysis using a program like Nascap-2K. The surface charging analysis will provide a voltage differential between the conductor and the dielectric. We can then constrain the discharge to a total charge using the capacitance of the system.
EMA3D has pre- and post-processing interface with Nascap-2K, so the user can apply the same geometrical model for the entire analysis. Here, we assume we have a voltage differential already supplied.
We first apply a slow waveform to charge up the dielectric. After reaching steady state, we then discharge the dielectric onto the conductor and evaluate the transients at the antenna. Our discharge waveform is a fast double-exponential fit to empirical observations of spacecraft discharges.
The time domain result is shown in the Figure above. Notice how the electric field shows a slow buildup to the saturating value as we charge the dielectric and then there is a rapid discharge back to the conductor as the electric field goes back down to zero.
We also evaluate the frequency domain result for the electric field, shown in the Figure above. In this case, the user may be interested to see the interference in the region of the antenna’s operating frequency.
In this short blog post, we have demonstrated a simple way to estimate electromagnetic energy coupling to an antenna during a surface to surface spacecraft discharge event. The techniques shown here can easily be applied to surface to space discharges and vehicle to vehicle discharges, as EMA has shown in a previous webinar (link here).
Using EMA3D’s pre- and post-processing interface with Nascap-2K, a sophisticated user can apply the same geometry to the complete spacecraft charging simulation analysis, as well as a wide range of EMC problems including lightning and HIRF.