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Bi-level integrated system synthesis (bliss)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sobieszczanski-Sobieski, Jaroslaw Sandusky Jr., Robert R. Agte, Jeremy S. |
| Copyright Year | 1998 |
| Description | BLISS is a method for optimization of engineering systems by decomposition. It separates the system level optimization, having a relatively small number of design variables, from the potentially numerous subsystem optimizations that may each have a large number of local design variables. The subsystem optimizations are autonomous and may be conducted concurrently. Subsystem and system optimizations alternate, linked by sensitivity data, producing a design improvement in each iteration. Starting from a best guess initial design, the method improves that design in iterative cycles, each cycle comprised of two steps. In step one, the system level variables are frozen and the improvement is achieved by separate, concurrent, and autonomous optimizations in the local variable subdomains. In step two, further improvement is sought in the space of the system level variables. Optimum sensitivity data link the second step to the first. The method prototype was implemented using MATLAB and iSIGHT programming software and tested on a simplified, conceptual level supersonic business jet design, and a detailed design of an electronic device. Satisfactory convergence and favorable agreement with the benchmark results were observed. Modularity of the method is intended to fit the human organization and map well on the computing technology of concurrent processing. |
| File Size | 2265285 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980234657 |
| Archival Resource Key | ark:/13960/t6zw6cx1h |
| Language | English |
| Publisher Date | 1998-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Computer Programming Concurrent Processing Prototypes Supersonic Jet Flow Commerce Design Analysis Modularity Parallel Processing Computers Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
