Multidisciplinary design optimization of mechanical systems using collaborative optimization approach

Citation
Ky. Lee et al., Multidisciplinary design optimization of mechanical systems using collaborative optimization approach, INT J VEH D, 25(4), 2001, pp. 353-368
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF VEHICLE DESIGN
ISSN journal
0143-3369 → ACNP
Volume
25
Issue
4
Year of publication
2001
Pages
353 - 368
Database
ISI
SICI code
0143-3369(2001)25:4<353:MDOOMS>2.0.ZU;2-2
Abstract
Multidisciplinary design optimization (MDO) can yield an optimal design con sidering all the disciplinary requirements concurrently. A method to implem ent the collaborative optimization (CO) approach, one of the MDO methodolog ies, is developed using a pre-compiler 'EzPreCompiler', a design optimizati on library 'EzOptimizer', and a common object request broker architecture ( CORBA) in distributed computing environment. The optimization processes are performed at both system and discipline levels, where the design sensitivi ty at optimum in one level can be utilized for the initial design gradients in alternate level optimization. The CO approach is applied to a mathemati cal example to show its applicability and equivalence to standard optimizat ion (SO) formulation. In a realistic engineering problem such as initial de sign of a bulk carrier, the CO yields better results than the SO due to the additional variables. Furthermore, the CO allows the distributed processin g using the CORBA, which leads to the significant reduction of overall comp utation time.