Energy Finite Element Analysis System

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-05-C-0146
Agency Tracking Number: N041-132-0396
Amount: $749,588.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solitcitation Year: 2004
Solitcitation Topic Code: N04-132
Solitcitation Number: 2004.1
Small Business Information
3916 Trade Center Drive, Ann Arbor, MI, 48108
Duns: 134722656
Hubzone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Nickolas Vlahopoulos
 Operating Manager
 (734) 355-0084
Business Contact
 Christina Vlahopoulos
Title: President
Phone: (734) 358-0777
Research Institution
New Naval initiatives, like the DD(X) program, impose stringent noise and vibration targets, and require assessment and reduction of noise due to machinery, flow, and propulsion. A typical surface ship structure exhibits thousands of normal modes below 30Hz. Thus, the frequency range of interest from signature and hull vibration objectives extends far beyond what existing finite element based methods can predict. High noise levels in living quarters and in working spaces due to acoustic emissions from machinery and operating aircraft creates habitability concerns which must also be addressed in new surface ship designs. Under the Phase II funding, an Energy Finite Element Analysis (EFEA) and an Energy Boundary Element Analysis (EBEA) formulations developed by the PI for computing the vibration of submersible vehicles and of surface ships, along with the associated radiated noise at frequencies beyond the limits of conventional finite element methods will be developed into commercially quality software. In addition to the Naval applications the EFEA and EBEA methods have been applied successfully in predicting vibration and acoustic fields in aerospace and automotive applications. The proposed project will lead to the development of an EFEA and EBEA system for the analysis of full scale surface ships and submarines in a robust and user friendly manner.

* information listed above is at the time of submission.

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