This project aims to incorporate airborne noise & vibration control in the overall ship design and construction process to improve the noise & vibration environment on all vessels while reducing the associated adverse impacts on space, weight, m The proposed solution is a computerized noise… More

In Phase I, Vibro-Acoustic Sciences will extend its proprietary Statistical Energy Analysis (SEA) code to estimate the statistics of phase for single input - single output transfer functions between launch vehicle fairing and payload acoustic volume. Thisis an extension of the preliminary research… More

In Ph.I Vibro-Acoustic Sciences will extend and apply its acoustic modeling technology to investigate an entirely new class of blanket construction -

This Phase II will develop a cost- and weight-effective means for achieving an improved low- and mid-frequency acoustic environment in payload fairings for rockets at lift-off. The solution to be developed will consist an active noise control system withan optimum selection of SmartFoam, distributed… More

This Phase II will develop a cost- and weight-effective means for achieving an improved low- and mid-frequency acoustic environment in payload fairings for rockets at lift-off. The solution to be developed will consist an active noise control system withan optimum selection of SmartFoam, distributed… More

This research will establish the feasibility of new control system optimization techniques to address complex vibration control problems within the constraints of limited cost, volume, and weight. Several methods are being investigated and developed topredict the phase of response in a reverberant… More

The Phase II effort will develop and test an optimized fairing blanket treatment based on heterogeneous material design for improved low-frequency performance and improved weight and/or volume to acoustic performance ratios than current, conventionalblankets. The material modeling code validated in… More

This proposal discusses the development and application of new methods of structural-acoustic analysis in order to address existing problems in aircraft interior noise prediction. The proposed methods are based on a hybrid modeling strategy that combines Finite Element Analysis (FEA) and… More

The goal of the project is research and development of methods for application of the Hybrid FE-SEA method to aircraft vibro-acoustic problems. This proposal discusses the development and application of new methods of structural-acoustic analysis in order to address existing problems in aircraft… More