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Every article tagged “Certification”.
4 articles
How aeroelastic analysis couples CFD loads to a structural model: conservative load transfer, jig shape versus flight shape, one-way versus two-way coupling, gust loads, flutter and its documented scatter on NASA benchmark cases, and where reduced-order models and surrogates help.
How airframe noise simulation works for landing gear and high-lift devices: tonal and broadband sources, CFD with a Ffowcs Williams-Hawkings step, mesh and record limits, array and tunnel validation, certification context and where AI surrogates help.
How aircraft seat crash simulation reproduces the 14 g and 16 g dynamic conditions of 14 CFR 25.562 and CS 25.562, why the stiffness window and the pre-deformed floor make it hard, what FAA AC 20-146A asks of a validated model, and where AI helps without replacing the physical tests.
What EASA SC-VTOL and the FAA ask for in an eVTOL emergency landing, why composite airframes with battery packs differ from helicopters, and how validated explicit models and surrogates support the test programme.
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