Prediction and Control of the Vibroacoustic Environment During a Launch Sequence

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,930.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
NNK06OM18C
Agency Tracking Number:
053745
Solicitation Year:
2005
Solicitation Topic Code:
X6.03
Solicitation Number:
n/a
Small Business Information
Frendi
146 Manningham Drive, Madison, AL, 35758-7418
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
118538086
Principal Investigator:
Kader Frendi
Principal Investigator
(256) 824-7206
frendi@eng.uah.edu
Business Contact:
Kader Frendi
Associate Professor/Owner
(256) 824-7206
frendi@eng.uah.edu
Research Institution:
n/a
Abstract
The complexity of the current launch platforms makes their maintenance and operation very costly. In order to successfully design the next generation platforms, it is necessary to understand the complex, multi-disciplinary environments that exists during a launch sequence. The proposed research and development effort will use state of the art techniques in the various fields involved to compute the virboacoustic environment during launch. The physical insight gained from these models will help guide the design of a new cost-effective launch platform. In particular, the problem of unsteady turbulent flows will be addressed using a newly developed turbulence modeling approach known as partially averaged Navier-Stokes (or PANS). Using PANS nearfield results, the acoustic farfield will be obtained through the use of acoustic analogies. In addition, various passive and active control techniques will be assessed to effectively reduce noise levels in the vicinity of the launch platform.

* information listed above is at the time of submission.

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