The employment of an optimization tool is a good means to solve complex issues with a minimum of interactive work. Provided that the costs for computation time decreases, more problems will be able to be solved by a mulitidisciplinary optimization (MDO) approach. Today, due to the limited number of CPU's a 'daily use' of this tool for all problems is not yet possible. Improvements of optimization algorithms and their clever combination will also help to extend the use of MDO. Beside the problem of the limited number of CPU's, the graphical interface needs to be very intuitive and the choice of optimization algoriths and the associated parameters must not be too complicated. Further improvements in the graphical user interface and the interfaces to the analysis software will help to reduce the knowledge and the effort necessary for the setup of an MDO process. Furthermore this will help to enable every enginner, and not just the MDO specialist, to use this tool. Especially robustness and stability of the process are very important to guarantee that the process will run for several days even though plenty of problems in the IT-system may occur. The users of MDO will have to invest more time to improve the formulation of objectives, constraints and targets. Since the quality of the answer is dependent on the quality of the questions, the engineer has to ensure that the automatic evaluation of simulated designs works as well as if done 'by hand'. The employment of MDO at AUDI AG is a helpful enhancement for the work in current and future car projects. The work with MDO will be continued and extended.
Multidisciplinary optimization of a car body considering crash and NVH loadcases
Multidisziplinäre Optimierung einer Karosserie unter Betrachtung von Aufprall- und NVH-Beanspruchungen
2005
9 Seiten, 6 Bilder, 2 Quellen
Aufsatz (Konferenz)
Englisch
Systemoptimierung , Karosserie , Aufprallversuch , Aufprallenergieabsorptionsvermögen , Aufprall , Anwendung im Fahrzeugbau , mechanische Beanspruchung , Fahrzeugsicherheit , Rechnersimulation , Simulations-Software , Airbag , Pkw (Personenkraftwagen) , Konstruktionsmethodik , Modellmethode , Fußgänger
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