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Showing 1 to 3 of 3 for “"HG blankets"”.
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Heterogeneous (HG) Blankets for Improved Aircraft Interior Noise Reduction
… the modeling and optimization of heterogeneous (HG) blankets for improved reduction of the sound transmission through double-panel systems at low frequencies. HG blankets consist of poro-elastic media with small, embedded masses, operating similar to a distributed mass-spring-damper system. …
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Novel Lightweight Noise and Vibration Control Treatments for Marine Structures
… Vibration Absorbers [DVAs] and Heterogeneous [HG] Blankets. Numerical models were developed, based on the theory of sound propagation through layered media and the vibration of plates, to simulate the performance of such absorbers for a variety of applications and media characteristics. The new …
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Design and development of advanced vibration and noise control devices using finite element analysis
… absorbers (DVA's) and the heterogeneous blankets (HG blankets) have shown great potential in reducing the vibration levels and the SPL's inside the payload fairings. Despite their good performance, little is known about the detailed mechanisms by which it is achieved. In addition, these …