A slender store hanging under a fighter wing sits in an acoustic field near 164 dB overall. A wind chime tube hanging from a porch beam sits in an acoustic field near 40 dB. The store is asked to survive; the chime is asked to… Read more
Cut a rectangular hole in an aerodynamic surface and fly it at high subsonic or supersonic speed, and the hole will sing. Not quietly. Overall sound pressure levels inside a fighter weapon bay routinely exceed 160 dB, and the energy is not spread evenly across… Read more
A large external store is to be carried under an aircraft wing on a pylon. The airframe manufacturer runs its buffet analysis and hands the store vendor an acceleration power spectral density at the pylon/wing interface. The vendor applies that PSD as base excitation to… Read more
Composite Materials in Turbofan Jet Engines | Structural Dynamics & Mechanics Vibrationdata · Structural Dynamics & Material Physics Composite Materials in Turbofan Jet Engines Aeromechanics, Centrifugal Mechanics, Impact Damage Tolerance, and Aeroelastic Tuning Introduction The modern high-bypass turbofan represents one of the most demanding optimization… Read more
Fuse Pins: The Structural Fuse That Holds the Engine On Jet engine pylons contain deliberately weakened pins designed to shed the engine under extreme overload — and two Boeing 747 freighter accidents showed what happens when the fuse itself fails from fatigue. An electrical fuse… Read more
VibrationData · Aviation HistoryT. Irvine · 11 Jul 1926 + 100 The “Tin Goose” convinced America that flying was safe. Nobody said anything about comfortable — a case study in excitation, transmission, and radiation. TypeFord 5-AT Engines3 × P&W Wasp R-1340, 420 hp DriveDirect —… Read more
Ryanair FR1879 — Fault Tree Analysis | VibrationData VIBRATIONDATA · INCIDENT ANALYSIS T. IRVINE · 11 JUL 2026 A fault tree for the July 10 uncontained engine failure over North Macedonia — and why one seatbelt turned a repeat of Southwest 1380 into an injury… Read more
Introduction The Convair F2Y Sea Dart was one of the boldest experiments of the early jet age: a delta-wing, supersonic seaplane fighter that took off and landed on retractable hydro-skis in San Diego Bay. It remains the only seaplane ever to exceed the speed of… Read more
A reader who leads Product Development for an aeronautical supplier of cabin electronics — seat power systems and security cameras — asked whether VibrationData covers electromagnetic emission and thermal management, particularly for engineers who are not strong on the simulation side. This post is written… Read more