Vibroacoustic Analysis

Define credible launch and ascent environments

LaFontaine Engineering predicts and characterizes launch-vehicle and satellite dynamic loads driven by liftoff acoustics and aerodynamically induced vibration. Simulation, ground-test measurements, and flight data support environments for design, qualification, and certification work.

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Inputs we work with

Structural models, acoustic and aerodynamic excitation, wind-tunnel measurements, and available ground-test or flight data.

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Analysis and deliverables

• FEM-based patch vibroacoustic methods for spatially varying acoustic and aerodynamic excitation of complex structures

• Mass Acceleration Curves (MACs) supporting dynamic-load development, requirements definition, and component qualification

• Sine, random-vibration, and acoustic environment derivation, test definition, and correlation

• Forcing functions developed from analytical models, wind-tunnel data, and flight measurements

• Ground-test and flight-data processing, including spectral analysis, environment validation, and model correlation

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Discuss your program

Tell us about your vehicle or payload, the environments you need to define, and the models or measurements available: info@lafontaineengineering.com.