Accession Number:

ADA426521

Title:

Numerical Optimization of Multifunctional Components

Descriptive Note:

Final rept. 1 Jun 2003-31 May 2004

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

2004-08-17

Pagination or Media Count:

9.0

Abstract:

Engineering components are increasingly complex in composition and structure and increasingly multifunctional. Indeed, it is only through complexity and multifunctionality that the defense industry can satisfy the stringent performance requirements associated with critical defense applications. However, these complex, multifunctional systems no longer admit intuitive analysis of trade-off considerations. Industries must pursue optimization, including optimal choice of material, configuration, and deployment to realize the potential of these new approaches. The essential mathematical enabler, and the focus of this project, is very fast yet reliable prediction of component behavior. Armed with the latter, industries may pursue extensive optimization and even real-time adaptive design and control. The critical ingredients of this approach are as follows 1 reduced-basis approximations to effect significant reduction in state-space dimensionality, 2 a posteriori error bounds to provide rigorous error estimation and control, and 3 offlineonline computational decompositions to permit rapid evaluation of output bounds in the limit of many queries. In this project, the authors extend this basic methodology to noncoercive, non-affine, non-linear, and non-elliptic parabolic problems. This will allow them to address the full range of disciplines that typically describe thermal, structural, fluidic, acoustic, and electromagnetic multifunctional components. Five conferences and seven related publications are listed. 23 refs.

Subject Categories:

  • Numerical Mathematics
  • Manufacturing and Industrial Engineering and Control of Production Systems
  • Fluid Mechanics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE