All aerospace systems must function satisfactorily in the electromagnetic environment in which they are intended to operate without introducing intolerable electromagnetic interference (EMI). The electromagnetic environment includes all natural and human-made phenomena at the given installation location.
Lightning and high-intensity radiated fields (HIRF) can degrade aircraft safe operation and even cause catastrophic effects without sufficient protection against electromagnetic environmental effects (E3). RF transmitters and lightning may also cause EMI issues for spacecraft and launch pads.
Today, model-based electromagnetic compatibility (EMC) engineering has reached a maturity at which it should be used alongside lab-based development. It even offers some advantages over physical testing, including the visualization of electromagnetic fields and the ease of use for investigating and optimizing E3 protections and EMC design.
The extensive range of Dassault Systèmes' electromagnetic simulation technology, comprising all numerical methods required for large multiscale problems, allows the design and improvement of aircraft integrated E3 designs for EMI, HIRF, lightning and ESD and the hardening of components against electromagnetic pulses and radiation hazards. Besides initial product development, electromagnetic simulation also allows the improvement and further development of aircraft and components.
The “Aerospace System Electromagnetic Performance” process offer workflows and tools for model-based aerospace EMC engineering. Initial lightning attachment zones can be characterized with electrostatic simulation and direct/indirect lightning effects with a specialized time domain solver. Typical large frequency domain problems as HIRF can also be investigated with a method of moments-based integral equation solver. For electronics applications we offer PCB design rule checking, SI/PI analysis and EMC assessment and mitigation. Seamless integration with the 3DEXPERIENCE platform allows for cooperation across disciplines and company organizations.
Adhering to compliance standards for EMC is a legal requirement which must be met in order to go to market. Any failure of certification tests at a late design stage is very costly and must be avoided. Validated high-fidelity simulation gives confidence that certification tests will be passed at the first attempt.
