LaFontaine Engineering provides vibration and acoustic mitigation solutions through early-stage and detailed design, reducing dynamic loads, noise levels, and performance risk across aerospace systems. Our approach emphasizes mitigation at the source and along transmission paths, enabling efficient, mass-conscious solutions that are integrated into the overall structural and systems design.

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We assess vibration and acoustic sources, transmission paths, and sensitive receivers using analytical and numerical methods to identify dominant contributors to dynamic response. High-fidelity finite element and vibroacoustic models are used to evaluate structural stiffness, modal characteristics, damping, and coupling mechanisms that govern noise and vibration propagation.

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Mitigation strategies are developed through design-based solutions, including structural tailoring to shift or separate modal frequencies, incorporation of passive damping treatments, and optimization of load paths to reduce dynamic amplification. For acoustic mitigation, we design and evaluate acoustic barriers, liners, and absorptive treatments, accounting for material properties, installation constraints, and frequency-dependent performance.

We support the design of vibration isolation systems, including elastomeric, viscoelastic, and multi-axis isolators, with stiffness and damping selected to achieve targeted attenuation while maintaining structural integrity and alignment. Trade studies are performed to balance isolation performance against mass, envelope, thermal, and launch-load constraints.

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All mitigation concepts are assessed for testability and verification, ensuring compatibility with sine, random vibration, and acoustic qualification environments. Analytical predictions are correlated with test data where available, providing confidence in mitigation effectiveness and supporting certification and flight readiness.